REMINERALIZATION POTENTIAL OF FUNCTIONALIZED TRICALCIUM PHOSPHATE VERSUS CASEIN PHOSPHOPEPTIDE- AMORPHOUS CALCIUM PHOSPHATE IN CARIES WHITE SPOT LESIONS “A RANDOMIZED CLINICAL TRIAL”
Donia
Galila
Former Internal Resident, Conservative Dentistry Department, Faculty of Dentistry, Cairo University, MSc Degree
Candidate, Conservative Dentistry Department, Faculty of Dentistry, Cairo University
author
mohamed
khairy
Professor, Conservative Dentistry Department, Faculty of Dentistry, Cairo University
author
Shereen
Ibrahim
Associate Professor, Oral and Maxillofacial Radiology Department, Faculty of Dentistry, Cairo University
author
text
article
2021
eng
Aim: The current study was conducted to compare between reminerlization potential of tri-calcium phosphate plus fluoride versus casein-phosphopeptide/amorphous-calcium phosphate in caries white spot lesions. Methodology: white spot lesions in anterior teeth of post orthodontic patients received randomly two types of remineralizing agents, clinpro tooth crème or MI paste plus, both materials were applied according to the manufacturer’s instructions. White spot lesions were evaluated at base line one month ,3, 6 months follow up periods by two blinded assessors to assess patient satisfaction using VAS score and color change by Vita Easyhshade. Results: One-way ANOVA followed by post-hoc Tukey’s test showed that within each remineralizing agent, there was no statistically significant difference in L* mean values between different evaluation time periods. Independent Student-t test showed that at each evaluation time, there was no statistically significant difference in L* mean values between both remineralizing agents. Two-way ANOVA showed that the two independent variables “remineralizing agent” (P<0.004) and “evaluation time” (P<0.0001) had significant effect on patien. T6 revealed the significantly highest VAS mean values; followed by T3; then T0 and T1 which were statistically similar but at each evaluation time, there was no statistically significant difference in VAS mean values between both reminerailizing agents. Conclusions: 1. Both clinpro tooth crème and mi paste plus has acceptable reminerlaization potential and beneficial effect in masking white spot lesions 2. There is gradual increase in patient satisfaction up to 6 months but it did not reach to the maximum patient satisfaction in masking white spot lesions.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2613
2622
https://edj.journals.ekb.eg/article_185168_018a33c5ed2563c85ab3b794f72bf1b6.pdf
dx.doi.org/10.21608/edj.2021.62669.1498
EFFECT OF ADDITION OF ACTIVATED CHARCOAL TO DIFFERENT FORMULATIONS OF CALCIUM HYDROXIDE ON DENTIN MICROHARDNESS OF ENDODONTICALLY TREATED TEETH. (AN IN-VITRO STUDY)
Medhat
Elfaramawy
Associate Professor, Endodontic Department, Faculty of Dentistry, Ainshams University.
author
text
article
2021
eng
This study evaluated the effect of the addition of the activated charcoal to different formulations of calcium hydroxide on their effect on dentin microhardness of endodontically treated teeth. Ninety one freshly human extracted single rooted teeth were selected. The samples were cleaned and shaped and classified according to the type of the dressing into five groups; Group 1; (21 samples) dressed with calcium hydroxide paste with Iodoform ( Metapex) ( META,Chungcheongbuk-do,Korea ), Group 2; (21 samples) dressed with conventional calcium hydroxide with saline(GAMA dental lab,Cairo, Egypt ). Group 3; (21 samples) dressed with calcium hydroxide paste with Iodoform mixed with activated charcoal ( Eucarbon Sedico, Cairo, Egypt) and Group 4; (21 samples) dressed with conventional calcium hydroxide and activated charcoal with saline and Group 5; Control group (undressed). The samples were further classified according to the observation time into: Subgroup A; (7 samples) after two weeks. Subgroup B;(7 samples) after one month and Subgroup C; (7 samples) after two month. The microhardness measurements were performed using a Vickers Microhardness Tester (Model HVS-50, Laizhou Huayin Testing Instrument Co., Ltd. China). The results showed that there was continuous decrease in the values of dentin microhardness by time however the samples with activated charcoal showed higher mirohardness over the tested periods. It was concluded that the addition of activated charcoal to the calcium hydroxide compounds can decrease the softening effect of different formulations of calcium hydroxide on the root canal dentin.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2623
2626
https://edj.journals.ekb.eg/article_185170_b9fa7036e43509f958dae2a3f2c18034.pdf
dx.doi.org/10.21608/edj.2021.63479.1506
EVALUATION OF HUMAN MANDIBULAR PREMOLARS ROOT CANAL ANATOMY IN EGYPTIAN POPULATIONS USING CONE BEAM COMPUTED TOMOGRAPHY
Dalia
Mohamed
Lecturer in Endodontics, Faculty of Dentistry, Suez Canal University, Egypt
author
Asmaa
Abdallah
Lecturer in Oral Radiology, Faculty of Dentistry, Suez Canal University, Egypt
author
text
article
2021
eng
Introduction: Understanding root canal morphology is important to achieve successful root canal treatment (RCT). Studies on mandibular premolars showed that, there is a significant variation in the root canal anatomy between different ethnicities. Therefore, this retrospective study aimed to evaluate the root canal anatomy of mandibular premolars in Egyptian population using cone-beam computed tomography (CBCT). Materials and Methods: 248 CBCT scans were evaluated and the anatomy of 392 mandibular first and 384 second premolars was classified according to Vertuci's classification. Data was statistically analyzed using SPSS software to calculate the incidences of root and canal number, each canal type, bilateral symmetry, and the association between gender and variation in root canal morphology. Results: First and second premolars with two roots were found in 1.8% and 1% of scans respectively. Most of the mandibular first (80.1 %) and second premolars (93.5%) showed (type I) root canal morphology followed by, type II (6.4 %) and type V (2.1%) in the first and second premolars respectively. While, Type VIII showed the least frequency in both premolars. Only the second premolars showed a statistically significant association between gender and both canal type and number. Bilateral symmetrical anatomy was observed more in the second premolar (94.8 %) than the first premolar (85.7%). Conclusions: Mandibular premolars in Egyptian population showed great variation in root canal configuration. Therefore, preoperative CBCT evaluation is advantageous to avoid missing of existing extra canals during RCT. New classification systems for root canal morphology is highly recommended in further studies.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2627
2635
https://edj.journals.ekb.eg/article_185171_2ba931294ba3eeab84b9388a0701c6b3.pdf
dx.doi.org/10.21608/edj.2021.63716.1508
Effect of Ultrasonic Scaling on Microleakage of Class V Composite Restorations Bonded With Different Adhesives
Ashraf
Ibrahim
Associate Professor, Department of Operative Dentistry, Faculty of Dentistry, Mansoura University, Mansoura, Egypt.
author
tayseer
maaly
Lecturer, Department of Dental Biomaterials, Faculty of Dentistry, Zagazig university
author
Enas
Tawfik Enan
Associate Professor, Department of Dental Biomaterials, Faculty of Dentistry, Mansoura University, Mansoura, Egypt.
author
text
article
2021
eng
Objectives: The current study was conducted to investigate the influence of ultrasonic scaling on microleakage under composite restorations bonded with 3 different adhesives. Methods: Sixty standerdized class V cavities were prepared in extracted human molars that were divided in to three groups, according to the type of applied adhesive, as follows: Group A: Fuji Bond LC, Glass ionomer (GI) adhesive, Group B: Clearfill S3 Bond, Self-Etch (SE) adhesive and Group C: OptiBond FL, Etch and Rinse (ER) adhesive. After cavity preparation and composite filling, teeth of each group were further divided into scaled and un-scaled subgroups. Teeth were sectioned buccolingually and the gingival margins of the teeth were evaluated and scored for dye penetration to check the microleakage. Results: Scaling caused a significant increase in microleakage scores of SE adhesive. On the other hand, both ER adhesive and GI adhesive showed insignificant change in microleakage scores after exposure to the ultrasonic scaling.Self- Etch adhesive showed the highest mean rank microleakage value (13.7), while GI adhesive had the lowest mean rank microleakage value (12.9) in the scaled group. Significant difference between the scaled (mean rank 13.7) and un-scaled (mean rank 7.3) subgroups was found only with SE adhesive (p = 0.007). On the other hand, insignificant differences (p = 0.06) were noticed between the two subgroups of GI and ER adhesive. Conclusion: Ultrasonic scaling caused significant increase in microleakage of self-etch adhesive bonded restorations. While GI and ER adhevies bonded restorations revealed more resistance to the effect of ultrasonic scaling.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2637
2644
https://edj.journals.ekb.eg/article_185172_98fe7e421fdeb61415cc882769a9d3e6.pdf
dx.doi.org/10.21608/edj.2021.64019.1513
Remineralization potential of grape seeds extract gel versus casein phosphopeptide-amorphous calcium phosphate in white spot lesions in post orthodontic patients: A randomized clinical trial
Aseel
Omeran
MSc Degree Candidate, Conservative Dentistry Department, Faculty of Dentistry, Cairo University
author
Mai
Akah
Lecturer of Conservative Dentistry Department, Cairo University
author
Dina
Ahmed
Lecturer of Conservative Dentistry Department, Cairo University
author
Hassan
Hassanein
BSc Degree, Ruprecht-Karls-Universität Heidelberg, Germany
author
Heba
Hamza
Professor of Conservative Dentistry Department, Cairo University
author
text
article
2021
eng
Aims: To determine the effectiveness of grape seed extract (GSE) gel compared to Casein Phosphopeptide-Amorphous Calcium Phosphate (CPP-ACP) application in managing white spot lesions (WSLs) in post orthodontic patients. Statistical analysis used: All statistical calculations were done using computer program IBM SPSS advanced statistics (Statistical Package for Social Sciences), version 25 (SPSS Inc., Chicago, IL). Methods and Material: This study was a single-blinded randomized clinical trial where 24 participants with white spot lesions in at least two teeth were included and randomized into two groups (12 patients each) to receive either GSE gel or CPP-ACP paste application. GSE gel was used on WSLs after orthodontic treatment every week, while CPP-ACP paste was applied twice daily by the patients themselves. Baseline and post-intervention measurements of quantitative changes of WSLs were measured by KaVo DIAGNOdent at 1, 3 and 6 months. Data for quantitative changes of WSLs were recorded and analyzed for each group. Results: There was no statistically significant difference in overall DIAGNOdent mean readings between GSE gel and CPP-ACP paste groups at P=0.360. Conclusions: Based on the data obtained in this study, it is suggested that GSE promotes remineralization of WSLs post orthodontic treatment and, thus, might be considered an effective natural agent for treatment of early enamel carious lesions.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2645
2654
https://edj.journals.ekb.eg/article_185173_064a6f21aeca6508951437ea20552c54.pdf
dx.doi.org/10.21608/edj.2021.60472.1476
Evaluation of Push-out Bond Strength of CeraSeal Bioceramic sealer with Different Obturation Techniques
Adel
AbdelWahed
Lecturer of Endodontics, Faculty of Oral and Dental Medicine, Future University in Egypt
author
nehal
roshdy
Associate Professor of Endodontics, Faculty of Dentistry, Cairo University.
author
ahmed
Elbanna
Lecturer of Biomaterials, Faculty of Dentistry, Ain shams University
author
text
article
2021
eng
Aim: The aim of the present study was to compare the push-out bond strength of CeraSeal Bioceramic sealer used with Gutta percha in single cone (SC), cold lateral compaction (CLC) and warm vertical compaction(WVC) obturation techniques. Materials and Methods: Thirty single-rooted extracted mandibular premolars were selected and mechanically prepared by ProTaper Next rotary files. The canals were allocated into three equal groups (n=10) based upon the obturation technique as follow; Group I: Bioceramic sealer (CeraSeal) with single cone, Group II: Bioceramic sealer (CeraSeal) with cold lateral compaction technique, Group III: Bioceramic sealer (CeraSeal) with warm vertical compaction technique. Roots were sectioned transversally to a thickness of 1 mm at the middle third. The specimens were subjected to push-out test using the Universal Test Machine. The maximum load utilised at the time of dislodgment was recorded. Intergroup comparisons were performed by one-way ANOVA followed by Tukey’s post hoc test. Results: WVC group showed the highest statistically significant mean push-out bond strength value (6.98±1.99) followed by CLC group (1.06±0.15), while the lowest value was presented in SC group (0.66±0.22) (p < 0.001). Conclusions: CeraSeal Bioceramic sealer showed higher push-out bond strength when used in WVC technique compared to single cone and lateral compaction techniques.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2655
2662
https://edj.journals.ekb.eg/article_185174_7c8c304385b0c26756db01b41d1329c2.pdf
dx.doi.org/10.21608/edj.2021.64108.1520
Evaluation of The Periapical Healing Following Pulp Revascularization Using Injectable PRF VS nonsurgical Root Canal Treatment in Mature Permanent Teeth with periapical periodontitis. A Clinical Study
lamiaa
Ibrahim
Associate Professor, Faculty of Dentistry Fayoum University
author
mohamed
tawfik
Assistant Professor, Department of Endodontics Faculty of Dentistry Fayoum University Fayoum Governorate Egypt
author
fatma
abu naeem
Endodontic Department, Faculty of Dentistry, Cairo University, Egypt
author
text
article
2021
eng
Aim:the aim of the current study was to evaluate the effect of injectable platelet rich fibrin (i-PRF) revascularization technique VS conventional endodontic treatment on the periapical healing of mature permanent teeth with periapical periodontitis. Materials and Methods: A total of 30 patients with apical periodontitis related to permanent central incisors were included in the study. The control group (n=15) has undergone conventional root canal treatment using crown down technique on 2 visits with calcium hydroxide intracanal dressing in between visits and obturation was done using cold lateral compaction technique. The intervention group (n=15) has undergone regenerative procedures. Regenerative protocol was carried out using 1.5% sodium hypochlorite irrigation and DAP intracanal medicament for 3 weeks. At the second visit, i-PRF was prepared and injected inside the root canal. The orifice was sealed with MTA followed by double sealing of the access by glass ionomer and composite-resin restoration. Clinical and radiographic evaluation was done for 1, 3, 6, 9, and 12 months, and CBCT imaging was done after 12- month follow-up period. Results: The i-PRF group recorded more decrease in the lesion size than the control group. However, the difference was not statistically significant yet, there was a highly significant statistical difference between the preoperative and postoperative measurements with great lesion size reduction within the i-PRF group Conclusion: i-PRF revascularization is an effective treatment of apical periodontitis in permanent teeth with mature apex. Key words: Regeneration, i-PRF, Mature teeth, Apical healing, Root canal treatment, Pulp revascularization.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2663
2672
https://edj.journals.ekb.eg/article_185175_7dff22cd2083e131d947705a598aa488.pdf
dx.doi.org/10.21608/edj.2021.62271.1521
Two-year clinical performance and marginal integrity evaluation of high C-factor occlusal cavities restored with preheated Bulk-Fill, SonicFill and incremental fill composite resin
reham
attia
Assistant Professor, Conservative Dentistry Department, Faculty of Dentistry and Oral Medicine, Zagazig University.
author
text
article
2021
eng
Aim of the Study: To study the clinical performance and marginal integrity of high C-factor Occlusal Cavities restored with preheated Bulk-Fill, SonicFill and incremental fill composite resin. Materials and Methods: Thirty patients who required at least a triplet of class I restorations were included in the study. The patients were divided into 3 groups; Group I: Restored with preheated bulk-fill composite, Group II: Restored with SonicFill composite and Group III: Restored with Nano-hybrid incremental composite. The studied composites were evaluated clinically for the following clinical parameters: marginal integrity and adaptation, marginal discoloration, color match and surface roughness, Wear, retention of restoration, presence of secondary caries and post-operative sensitivity. Restorations were evaluated at baseline, six, 12, 18 and 24 months using modified US Public Health Service Ryge criteria and recorded as Alpha, Bravo, or Charlie. Where, Alpha corresponds to excellent, Bravo to clinically acceptable, and Charlie to clinically unacceptable results. Results: Regarding the marginal integrity, there was no statistically significant difference amongst the three tested materials except after 18 months, (P-value= 0.026). There was statistically significant difference amongst the three tested groups at 18- and 24-months evaluation where (P-value=0.031) and (P-value=0.034), respectively. No statistical significance was observed between the 3 groups regarding wear, color match, surface roughness, retention of restoration, presence of secondary caries and post-operative sensitivity. Conclusion: All tested materials showed comparable satisfactory clinical results with the exception of marginal integrity.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2673
2693
https://edj.journals.ekb.eg/article_185176_4ab8b5694a336300afc9feae6f985f24.pdf
dx.doi.org/10.21608/edj.2021.65934.1537
The Effect of Obturation Technique on the Fracture Resistance of Endodontically Treated Teeth Obturated with Bioceramic Sealer. (In Vitro Study)
Medhat
Elfaramawy
Associate Professor, Endodontic Department, Faculty of dentistry, Ainshams University
author
Tariq
Yehia
Lecturer, Endodontic Department, Faculty of Dentistry, Ain Shams University, Cairo, Egypt
author
text
article
2021
eng
Aim of the study: This study evaluated the effect of obturation technique on the fracture resistance of endodontically treated teeth obturated with bioceramic sealers compared to resin-based sealers. Methods: Ninety-one (n=91) freshly human extracted single rooted teeth were selected. The samples were biomechanically prepared and classified according to the obturation technique and type of the sealer used into five groups as follows: Group 1 (n=21) obturated with cold lateral compaction technique using gutta-percha and AD-seal sealer (Meta Biomed, Korea). Group 2 (n=21) obturated with warm vertical compaction technique using gutta-percha and AD-seal sealer. Group 3 (n=21) obturated with cold lateral compaction technique using gutta-percha and MTA filapex sealer (Angelus, Brazil). Group 4 (n=21) obturated with warm vertical compaction technique using gutta-percha and MTA filapex sealer. Group 5 (n=7) Control group (unobturated). The samples were further classified according to the observation time into: subgroup A (n=7) evaluated after one week, subgroup B (n=7) evaluated after two weeks and subgroup C (n=7) evaluated after one month. Samples were loaded vertically after obturation using Universal Testing Machine until fracture. Results: MTA filapex group showed higher fracture resistance values than the other groups with no significant difference. No significant difference was found between the subgroups evaluated at different time intervals. Conclusion: The technique of root canal obturation didn’t significantly affect tooth fracture resistance of either teeth obturated with Bio-ceramic sealer or resin sealer at different time intervals.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2695
2699
https://edj.journals.ekb.eg/article_185177_82550ca4826f5c70422a42c6af71b0d3.pdf
dx.doi.org/10.21608/edj.2021.65988.1538
REMINERALIZATION EFFECT OF EGGSHELL POWDER ON POST-ORTHODONTIC WHITE SPOT LESIONS COMPARED TO CPP-ACP: A RANDOMIZED CONTROLLED CLINICAL TRIAL
Mohammad
Sarhan
MSc Degree Candidate, Conservative Dentistry Department, Faculty of Dentistry, Cairo University
author
Maha
El Baz
Associate Professor, Conservative Dentistry Department, Faculty of Dentistry, Cairo University
author
Omaima
Hamza
Professor, Conservative Dentistry Department, Faculty of Dentistry, Cairo University
author
text
article
2021
eng
ABSTRACT: Aim: White spot lesions are the only carious process lesions that can be remineralized non-invasively. The focus of modern dentistry is stopping the caries process without unnecessary damaging the tooth structure. The present clinical trial aimed to assess the remineralizing effect of eggshell powder (ESP) compared to Casein Phosphopeptide-Amorphous Calcium Phosphate (CPP-ACP) in carious post-orthodontic white spot lesions orthodontic treatment. Methodology: Twenty-Four patients were selected from the Clinic of Orthodontic Dentistry Department, Faculty of Dentistry, Cairo University. Patients were divided into two groups according to the treatment received either ESP gel or CPP-ACP paste (GC Tooth-Mousse). The participants were instructed to use pea size eggshell powder gel or GC Tooth Mousse on the teeth surfaces using a clean finger twice daily after brushing their teeth with Colgate Total Original Care toothpaste. WSLs were assessed at baseline, 1 month, 3months and 6 months by DIAGNOdent (Kavo, Germany). Results: Data were analyzed using Two-way ANOVA showed that there was no statistically significant difference in overall DIAGNOdent mean readings between ESP and GC Tooth Mousse groups at (P=0.136). Conclusion: Based on the data obtained in this study, it is suggested that ESP is effective and has a promising future in the treatment of post-orthodontic WSLs.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2701
2710
https://edj.journals.ekb.eg/article_185178_e23742be8a83a1151a311b7e56827313.pdf
dx.doi.org/10.21608/edj.2021.60371.1473
CAD/CAM Surface Treatment And Type Of Adhesive Affect CAD/CAM Composite Bonding To Dentin
Lina
Samy
Demonstrator, and Master’s Degree Student, Operative Dentistry Department, Faculty of Dentistry, Ain Shams University
author
Aya
Samaha
Lecturer, Operative Dentistry Department, Faculty of Dentistry, Ain Shams University.
author
Farid
El-Askary
Professor, Operative Dentistry Department, Faculty of Dentistry, Ain Shams University
author
text
article
2021
eng
Objective: To evaluate the effect of CAD/CAM surface treatments and different adhesives on the shear bond strength (SBS) of a CAD/CAM composite to dentin. Materials and Methods: In total, 120-flat dentin surfaces were prepared, and divided into 12 groups (n=10) according to: 1- CAD/CAM surface treatment, and 2: Type of adhesive. A total of 120 CAD/CAM composite rods (2mmx2mmx4mm) were prepared, and sandblasted. The rods were left without further treatment, ultrasonically cleaned in distilled water, or acid etched using 35% phosphoric acid. The dual- and self-cured adhesives were applied to dentin, in etch-and-rinse or self-etching modes and the rods were cemented using dual-cured resin cement. The SBS test was run at a crosshead speed of 0.5 mm/min until failure. Data were analyzed using Two-Way ANOVA/Tukey test, P=0.05. Results: Factors “surface treatment”, “adhesive” and “surface treatment x adhesive” had significant effect on SBS (P0.05). Sandblasting had the highest significant SBS among surface treatments (P<0.05). Self-cured adhesive showed higher SBS compared to dual-cured adhesive in etch-and-rinse mode (P<0.05). Mixed failure was the predominate failure (59.2%). Conclusion: Sandblasting improved the SBS of a CAD/CAM composite to dentin. The use of dual-cured universal and self-cured adhesives in their simplified self-etching approach is preferrable.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2711
2723
https://edj.journals.ekb.eg/article_185179_be779666e223046763112c4ec6238ae4.pdf
dx.doi.org/10.21608/edj.2021.68272.1554
Effect of Different Final Irrigation Activation Methods on Root Canal Cleanliness
Randa
Elsobky
B.D.S (2011)
author
Abeer
Darrag
Professor of Endodontics, Faculty of Dentistry, Tanta University
author
Neveen
Shaheen
Assistant Professor of Endodontics, Faculty of Dentistry, Tanta University
author
text
article
2021
eng
Aim: to evaluate canal cleanliness after using manual dynamic activation, passive ultrasonic irrigation and photoactivated disinfection in comparison with conventional needle irrigation, using scanning electron microscopy Methods: Sixty single rooted human premolars with nearly straight single canal were collected, the crowns of all teeth were removed near the level of cementoenamel junction to obtain approximately 15 ±1 mm uniform root lengths. After instrumentaion with ProTaper Next files up to X4 (40/06), roots were randomly divided into 4 equal groups (n=15) according to the method of final irrigation activation. Group I: Conventional needle and syringe irrigation. Group II: Manual dynamic activation. Group III: passive ultrasonic irrigation. Group IV: photoactivated disinfection. Canal cleanliness was evaluated with SEM using different magnification (X350- X1000). Results: Group III had the best cleanliness of the root canal while Group I had the worst cleanliness, there were statistical significant differences between Group I versus Groups II and III and between Group III and Group IV (P ≤ 0.05). Regardless the irrigation activation method, the coronal level showed significantly less amount of smear layer and remaining debris than the apical level. Conclusions: None of the tested final irrigation activation methods resulted in completely clean canal wall.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2725
2734
https://edj.journals.ekb.eg/article_185180_a01c25f742ab62c6537f626ab7753b33.pdf
dx.doi.org/10.21608/edj.2021.68904.1559
Cone-beam assessment of gutta percha removal by Reciproc versus ProTaper Universal re-treatment
Mahmoud
Badr
Lecturer of Endodontics, Faculty of Oral and Dental Medicine, Future University in Egypt
author
Mohammed
Rokaya
Associate Professor, Associate professor of Endodontics, Faculty of Dental Medicine, Al-Azhar University, Assuit,
Egypt
author
text
article
2021
eng
This study intended: to assess use cone-beam analysis of gutta percha removal by Reciproc versus ProTaper Universal retreatment systems. Methods: Thirty extracted humanoid lower first molars were collected. The mesiobuccal canal was selected from each tooth. The mesiobuccal canals were mechanically prepared in a crown-down approach using the “TF Adaptive” setting on Elements Motor. TF Adaptive Green ML1 file (Medium Large) and Yellow ML2 size 35 taper 4% till the file gets to the effective length. the obturation was done by lateral condensation technique with gutta pearch size 35 taper 6%, and AH plus in the same visit, and using gutta pearch size 25 taper 2% as auxiliary cones with spreader size 25. samples were unintentionally split into two investigational groups concurring to the re-treatment method used (n = 15). Group I: Reciproc system, and Group II: ProTaper Universal re-treatment. Cone beam (CBCT) was used to evaluate the gutta percha removal in both groups. Results: less remaining filling material following the wastage of the Reciproc system (0.169mm3) followed by the ProTaper Universal retreatment (1.459 mm3). There was less remaining filling material following the use of the Reciproc system (The rate of decrease was 96.82 %) followed by the ProTaper Universal re-treatment kit (The rate of decrease was 76.17 %). Conclusions: Reciproc was more effective than Protaper Universal files in the elimination of gutta‐percha and epoxy resin‐based sealer during the re-treatment.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2735
2741
https://edj.journals.ekb.eg/article_185181_d0006076344543c78be18547f03d608c.pdf
dx.doi.org/10.21608/edj.2021.67442.1552
The effect of autoclave sterilization on Cyclic fatigue resistance of two Ni-Ti systems (an In-Vitro study)
Ahmed
Fiad
Endo, faculty of dentistry, ain shams university, cairo, egtpt
author
Medhat
El Faramawy
Associate Professor , Endodontic Dep., Faculty of Dentistry, Ainshams University
author
sarah
fahmy
Instructor , Endodontic Dep., Faculty of Dentistry, Ainshams University
author
text
article
2021
eng
The aim of this study was to evaluate the effect of sterilization on the cyclic fatigue resistance of Reciproc Blue rotary files and One Curve rotary files. Methods: For each test of the cyclic fatigue thirty files of each system were used. Ten of the thirty rotary files were used new, ten rotary files after three sterilization cycles and ten rotary files after six sterilization cycles. For cyclic fatigue testing a static model was used with a specific device, which allowed the instruments to rotate freely inside a Stainless-Steel artificial canal. Results: The results showed higher cyclic fatigue of Reciproc Blue than One Curve with no effect of sterilization on Reciproc Blue and decreeing in the cyclic fatigue resistance for One Curve. Conclusions: Reciproc Blue has higher cyclic fatigue resistance than One Curve. With no effect of sterilization on cyclic fatigue of some files while have negative effect on others.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2743
2747
https://edj.journals.ekb.eg/article_185182_d7d65afc82f8fb04e9d7c4a0e847e3db.pdf
dx.doi.org/10.21608/edj.2021.71353.1576
Shear Bond Strength of a Multi-Mode Universal Adhesive Containing Hydroxy-Apatite Nanoparticles to Dentin (In vitro study)
Ahmed
Ghyadh
Postgraduate MS Resident, Division of Operative and Esthetic Dentistry, Faculty of Dentistry, Beirut Arab
University, Lebanon (BDS, University of Bagdad, Iraq)
author
hala
ragab
Professor of Operative and Esthetic Dentistry, Faculty of Dentistry, Beirut Arab University, Lebanon (BDS, MSc,
PhD, Operative and Esthetics, Cairo University, Egypt)
author
essam
osman
Professor of Biomaterials, Faculty of Dentistry, Beirut Arab University, Lebanon (BDS, MSc, PhD, Dental
Materials, Alexandia University, Egypt)
author
text
article
2021
eng
Aim: To evaluate the effect of addition of Hydroxyl-Apatite nanoparticles to a commercial universal adhesive on sheer-bond-strength to dentin using two application modes, immediately and after thermocycling. Methods: A-commercial UA was used for bonding composite-resin to dentin and considered as control. 10% of HAp were prepared and added to the commercial UA and considered as experimental. 88-freshly extracted sound human premolar teeth were sectioned to expose mid-coronal-dentin. Samples were y divided into: control and experimental group. Each group was further divided based on the application protocol. Half of the samples were stored in distilled water for 24h at 37°C for immediate SBS testing whereas the other half was subjected to thermocycling for 20,000 cycles. SBS was measured one-day post polymerization and after thermocycling using universal testing machine. SBS values and failure modes were recorded and statistically analyzed. Results: the experimental group presented significantly lower resin-dentin SBS than the control group. Thermocycling significantly lowered SBS values for both groups. When using SE mode, the experimental group reported lower resin-dentin SBS than the control group before and after thermocyclying. When using ER mode before thermocycling, no significant difference was found between the two groups, while after thermocycling, the experimental group reported significantly higher resin-dentin SBS than the control group. For both adhesive groups, mixed failure dominated with ER mode while adhesive failure dominated with SE mode. Conclusions:Addition of HA may provide resistance to degradation and offer a potential to improve resin-dentin bond stability against thermal changes when ER protocol is applied.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2749
2758
https://edj.journals.ekb.eg/article_185183_7f184ff3d456c9784e9cb83161c13f16.pdf
dx.doi.org/10.21608/edj.2021.72060.1585
Effect of Hydro- abrasion versus Conventional Cavity Preparation on the Clinical Performance of Composite Resin Restoration
laila
kashkosh
Assistant Lecturer of Restorative Dentistry, Faculty of Dentistry, Tanta University, Egypt..
author
Thuria
Genaid
Professor of Restorative Dentistry, Faculty of Dentistry, Tanta University, Egypt
author
Ali
Abdallah
Professor of Restorative Dentistry, Faculty of Dentistry, Tanta University, Egypt
author
text
article
2021
eng
Aim: To evaluate the effect of hydro abrasion versus the conventional drill method of cavity preparation on the clinical performance of composite restoration over one year follow up period. Materials and methods: Twenty patients with occlusal carious lesions were selected and examined with DIAGNO cam and ICDAS visual criteria to select teeth having ICDAS Code 3 or 4. Forty lesions were randomly divided into two groups (n=20) according to the method of caries removal. Cavities were prepared by the conventional drill method in group I and by hydro-abrasion in group II. Cavities of both groups were restored by self-etch adhesive (Adper Easy Bond) and nano- filled composite (Filtek Z350XT). All restorations were evaluated after 24 hours, after 9 and 12 months according to (USPHS) criteria for retention, marginal adaptation, postoperative sensitivity, marginal discoloration, and secondary caries. Results: Mild, moderate - severe and very severe pain was recorded in group I While in group II, only mild pain was recorded in (40%) of cases. The st. analysis of the collected data related to the tested USPHS criteria revealed 100% Alpha scoring regarding retention, marginal adaptation and secondary caries in both groups throughout the study period. The gap width measured under SEM was found increased sig. by time in both groups. Marginal discoloration was observed in the two groups after nine and 12 months. Post-operative hypersensitivity was found only in group I in 100% of cases at the base line and was disappeared during the next follow up period.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2759
2773
https://edj.journals.ekb.eg/article_185184_5341f6e65c8a4bce96c400c26d429936.pdf
dx.doi.org/10.21608/edj.2021.73119.1597
Comparative study of zirconomer versus equia fil on surface microhardness and remineralization (An in vitro study).
Ibrahim
Basha
Lecturer, Department of Operative Dentistry Faculty of Dental Medicine, Boys, Cairo, Al-Azhar University
author
text
article
2021
eng
Aim: This research was designed to evaluate the effect of different types of glass ionomer restorations(GIC) on Surface microhardness and Remineralization of dentin. Materials and methods: Three of (GIC) (medifil, equia fil and zirconomer) were used.A total number of 32 human premolar teeth were used in this study. Standardized two class V cavities, one on the buccal and other on lingual surface of each tooth were prepared.The teeth were sectioned mesio-distally to get (64) then divided into three equal main groups (n=21) according to the restorative materials, group (M): medifil group (E): equia fil group and (Z): zirconomer group. Each group was further subdivided into three equal divisions (n=7) according to the storage times; one day (S1), one month (S2) and three months (S3). The specimens were sectioned longitudinally along to produce two blocks. One part was mounted in epoxy resin for microhardness testing, and the other for energy dispersive x -ray analysis(EDX).Specimens were stored in artificial saliva for one day, one month and three months .A microhardness tester was used to measure the Vickers hardness number (VHN).Results:It was found that the highest mean value of surface micro hardness and remineralization was recorded for medi fil group, while the lowest mean value was recorded for equia fil group. Pair-wise there is no-significant between one month and three month storage. Conclusion: all (GIC) restorations show remineralization to tooth structures also zirconomer over powered by conventional (GIC) because its high fluoride release finally equia fil show increase remineralization with time.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2775
2781
https://edj.journals.ekb.eg/article_185185_b384b74aab53db380cd91538a66034f8.pdf
dx.doi.org/10.21608/edj.2021.73001.1595
Evaluation The Efficiency of Nano Seashell, Sodium Fluoride And A Commercially Available Toothpaste On Dentinal Tubules Occlusion After Acid Attack Using Scanning Electron Microscope: In vitro Study.
Reem
Ashraf
PhD of Dental Biomaterials Ain Shams University, Lecturer of Dental Biomaterials at Ahram Canadian University
author
Nawal
Aidaros
PhD Faculty of Dentistry Azhar University, Lecturer of Restorative Dentistry at Ahram Canadian University.
author
text
article
2021
eng
Objectives: To evaluate the efficiency and stability of Nano seashell, Sodium Fluoride and Signal Complete 8 in treatment of dentine hypersensitivity. Methods: Forty freshly extracted premolar teeth were collected, disinfected, and sliced into 1.0± 0.1mm thickness. The dentin discs were randomly divided into two main groups of 20 discs each. Group 1(n=20): Dentin discs subjected to treatment not followed by acid challenge. Group 2 (n=20): Dentin discs subjected to treatment followed by acid challenge. Each group was further subdivided into 4 subgroups of 5 discs each according to the treatment used; Subgroup A (Control group): discs received no treatment; Subgroup B: discs treated with Sodium Fluoride paste; Subgroup C: discs treated with Nano Seashell paste; Subgroup D: discs treated with Signal Complete 8 toothpaste. Evaluation of dentinal tubules obliteration was done under scanning electron microscope. Results: There was a significant change in the diameter of tubules and percentage of occlusion for group 1. Group 2 (subjected to acid challenge after treatment) has shown high stability for subgroup B (Sodium Fluoride), followed by subgroup D (Signal Complete 8) then subgroup C (Nano seashell paste). Conclusion: Nano seashell and Sodium Fluoride caused significant increase of occluded dentinal tubules than Signal complete 8 but the mineral deposits formed by Sodium Fluoride showed higher resistance to acidic environment than those formed by Nano seashell.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2783
2794
https://edj.journals.ekb.eg/article_185186_30e619ddf48c1d9e3f85042f3783d305.pdf
dx.doi.org/10.21608/edj.2021.73931.1609
Comparative assessment of antibacterial activity and fluoride release potential of Cention-N and different bioactive restorative materials: An in vitro study
Walaa
Alsamolly
Lecturer of Operative Dentistry, Faculty of Dentistry, Al-Azhar University (Boys) Cairo
author
Galal El Deen
Sadek
Lecturer of Dental Bio-material, Faculty of Dentistry, Al-Azhar University (Boys) Cairo.
author
text
article
2021
eng
Aim: This study was directed to assess the antibacterial activity and fluoride release potential of Alkasite material (Cention N) in comparison to two different bioactive materials (Activa BioACTIVE restorative and Zirconomer) at various time intervals Materials and methods: Total 75 disc-shaped specimens of three different restorative materials (Zirconomer, Activa BioACTIVE, and Cention N) were made. 45 specimens for fluoride release (n =15) and 30 specimens for antibacterial activity (n=10). For Antibacterial activity specimens divided into 3 groups (n=10) Group1: Zirconomer, Group2: Cention N and Group 3: Activea bioactive. For fluoride release the specimens divided into 3 groups (n =15) Group1: Zirconomer, Group2: Cention N and Group 3: Activea bioactive. Each fluoride release group was further subdivided into three equal subgroups (n=5) according to the storage time (one day, 7days and 14days). Antibacterial Activity and diameters of inhibition zone were recorded after 48 hours also Fluoride release was evaluated at the end of Day 1, 7and Day 14, using fluoride ion-selective electrode. Data analysis was performed using ANOVA and post-hoctest. Results: Zirconomer group revealed significantly the highest mean fluoride release value than in Cention N and Activea bioactive. Also, Cention N significantly higher fluoride release than Activa BioACTIVE. Cention N group showed statistically significant largest zone of inhibition against Streptococcus mutans at 48 hours followed by Zirconomer group, the smallest zone of inhibition observed with Activa bioactive group. Conclusion: Cention N and Zirconomer had better antibacterial activity and fluoride release while Activea bioactive had limited antibacterial activity and fluoride release.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2795
2803
https://edj.journals.ekb.eg/article_185187_1e084f61afc4cf47edd6aa5330db1b6d.pdf
dx.doi.org/10.21608/edj.2021.74839.1614
Influence of different universal adhesives on fracture resistance of endodontically treated teeth
Tamer
elshehawy
Lecturer, Operative Dentistry Department, Faculty of Dentistry, Mansoura University, Egypt.
author
text
article
2021
eng
Objective: To examine the influence of different universal adhesives on fracture resistance of endodontically restored teeth. Materials and Methods: Fifty sound maxillary premolars were collected. MOD cavity and root canal treatment were performed in 40 teeth only. The width of the cavity was one-third of the inter-cuspal distance at the occlusal portion and one-third of the bucco-lingual width of proximal boxes. The floor of the cavity was coronally prepared by 1 mm to the CEJ. The cavo-surface margins were prepared at a butt joint. All samples were assorted into five equal groups (N=10): group I: intact teeth (+ve control), group II: prepared unrestored (-ve control), groups III, IV, and V: these groups had root canal treatment and standardized MOD cavities then restored with final resin composite restorations (Filtek Z350 XT) by using three types of adhesive systems; Single Bond Universal, All-Bond Universal and Tetric N-Bond Universal, respectively. The teeth were mounted to universal testing machine and subjected to compressive load at crosshead speed 0.5 mm/min. Fracture modes were evaluated under a stereomicroscope at magnification of 12X. Statistical analysis was performed using SPSS, version 20.0. Results: There was significant improvement in fracture resistance in restored teeth (group III, IV and V) than unrestored teeth (group II), but didn't reach the fracture resistance of sound teeth (group I). There was no significant difference between restored groups. Conclusions: According to the limitations of this study, resin composite restoration of endodontically treated teeth using different universal adhesives improve fracture resistance of these teeth.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2805
2815
https://edj.journals.ekb.eg/article_185188_870532601b34b7e0038eb13ee0378025.pdf
dx.doi.org/10.21608/edj.2021.74983.1617
Antimicrobial activity of AH Plus and Ceaseal sealers with and without the addition of silver nanoparticles against Enterococcus faecalis.
Nehal
roshdy
Associate Professor, Endodontic Department, Cairo University
author
Adel
AbdelWahed
Endodontic Department- Faculty of Oral And Dental Medicine- Future University
author
Hisham
Elshishtawy
Associate Professor, Department of Microbial Genetics, Agricultural Genetic Engineering Research Institute,
Agriculture Research Center, Cairo, Egypt.
author
text
article
2021
eng
Aim: The aim of the present study was to investigate the antimicrobial effect of AH Plus and Ceraseal sealers with and without the incorporation of silver nanoparticles against Enterococcus faecalis using the direct contact assay. Methodology: Silver nanoparticles were prepared by chemical reduction method. Direct Contact Test (DCT) was carried out by settling 50mg of freshly mixed sealer in a sterile flat bottom screw capped tube.Ten tubes were prepared for each sealer in duplicate as follow:Group(I): Ceraseal (Meta Biomed Co., Cheongju, Korea) , Group (II): Ceraseal& Nano silver gel, Group(III): AH Plus (Dentsply/Maillefer, Konstanz, Germany) and Group (IV): AH Plus & Nano silver gel. Antibacterialactivity was evaluated against Enterococcus faecalis ATCC 35550 at various time intervals 1 ,24 and 168 hours,. Results: DCT results revealed that AH Plus had higher antibacterial activity against Enterococcus faecalis at different time intervals than Ceraseal sealer unaffected by (AgNPs)incorporation. But the incorporation of(AgNPs)significantly increased their antibacterial effect. All sealers had lost much of their antibacterial effects at 7 days interval. Conclusion: AH Plus sealer had higher antibacterial effect than Ceraseal sealer. Incorporation of (AgNPs) silver nanoparticles can improve the antibacterial activity of AH Plus and Ceraseal sealer.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2817
2823
https://edj.journals.ekb.eg/article_185189_e1c0c2e663572d525ed3745472d5e397.pdf
dx.doi.org/10.21608/edj.2021.75740.1627
Comparison of Sealing Ability of Experimental Tricalcium phosphate cement versus Biodentin and Mineral Trioxide Aggregate used for Furcation Perforation Repair
Mostafa
Elbialy
Assistant Researcher at Restorative and Dental Materials Research Department National Research Center
author
Magdy
Ali
Dean, Professor of Endodontics, Faculty of Dentistry, Beni Suef University
author
Reham
Hassan
Head of Endodontic Department, Associate professor Faculty of Dentistry, Minia University.
author
Engy
Kataia
Assistant Researcher Professor, Restorative and Dental Materials Department, National Research Centre, Cairo, Egypt
author
text
article
2021
eng
The scope of this study is to compare the sealing capability of experimental tricalcium phosphate cement versus Biodentine and Mineral Trioxide Aggregate used for furcation perforation repair. Methodology: Ninety six extracted human molars were perforated in furcation area and unsystematically divided into four groups relative to the furcation repair material into: experimental tricalcium phosphate (n=30), Biodentine (n=30), MTA (n=30) while the fourth group of samples was left unrepaired as control (n=6). Each group was further subdivided into three subgroups according the evaluation period as 1 week, 1 month and 3 months. Samples were subjected to dye penetration test and values calculated using a stereomicroscope with magnification (25X). Kruskal Wallis test was utilized to show the difference between more than two groups in non-related samples. Results: Biodentine group showed statistically significant least dye absorbance; statistically there wasn’t a significant difference between the Experimental material and MTA Conclusion: The experimental tricalcium phosphate provides an easy handling and quick setting of repair material with comparable sealing ability to MTA.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2825
2830
https://edj.journals.ekb.eg/article_185190_5afdec5c31eee3eb37e18c10f9b9f513.pdf
dx.doi.org/10.21608/edj.2021.78062.1652
Effect of Gallic Acid on the Filling Quality of an Epoxy Resin – Based Root Canal Sealer
Ashraf
Dawood
Lecture of Endodontics, Faculty of Dentistry, Kafr Elsheikh University
author
text
article
2021
eng
Purpose: our study evaluated the effect of Gallic acid irrigation as a final rinse after sodium hypochlorite (NaOCL) irrigation on the filling Quality of an expoxy resin – based sealers. Methods and Materials: Twenty single- rooted human teeth were prepared with the protaper system. The specimens were then divided into the following groups: 5.25%NaOCL irrigation (NaOCL group) and 5.25%NaOCL + 10% gallic acid (gallic acid group). The root canals were filled using single cone technique with protaper F3 cones and Diapro – seal sealer, labeled with rhodamine B dye to allow analysis under a confocal laser scanning microscopy (CLSM). All Samples were sectioned at 3, 5 and 7 mm form the apex and prepared for CLSM analysis. The Penetration segments of the canal were calculated at the apical, middle and coronal thirds. The Mann – Whitney statistical test was used at 5 % significans level. Results: higher percentage of gaps and voids were observed at all root thirds of the NaOCL group when compared to the gallic acid group (P Conclusion: our in vitro results showed that the use of gallic acid as an antioxidant agent after NaOCL irrigation promoted a better interfacial adaptation and penetration of epoxy resin – based root canal sealers.
Egyptian Dental Journal
The Egyptian Dental Association (EDA)
0070-9484
67
v.
3
no.
2021
2831
2837
https://edj.journals.ekb.eg/article_185167_7f04c98187094912b7ca48fc8eaa5e7c.pdf
dx.doi.org/10.21608/edj.2021.79427.1666