The Egyptian Dental Association (EDA)
Egyptian Dental Journal
0070-9484
2090-2360
64
Issue 2 - April (Orthodontics, Pediatric & Preventive Dentistry)
2018
04
01
The effect of cortical bone thickness on the primary stability of miniscrews, using CBCT (Cross-sectional clinical trial)
847
853
EN
Aly
Osman
Developmental Sciences Department, Division of Orthodontics, Faculty of Dentistry, Beirut Arab University
Ahmed
Abdel Moneim
Orthodontic Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
Nadia
El Harouni
Orthodontic Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
Mohamed
Shokry
Oral surgical Sciences Department, Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, Beirut Arab University
10.21608/edj.2018.76908
Objectives: The aim of the present study was to determine the correlation between the thickness of both cortical bone thickness, total bone thickness and the primary stability of mini-implants. <br />Methods: Twenty-six mini-screws (Absoanchor) were inserted into the buccal alveolar bone between the roots of the second premolar and first molar on the right and left side of the patient. The mobility of the mini-screws was clinically assessed using the periotest device and the buccal cortical bone thickness of the maxilla was measured on the right and left side in the inter-radicular area between the second premolar and first molar at the site of the miniscrew insertion. The patient’s head was oriented in all 3 spatial planes by adjusting the Frankfort plane horizontal and the orbital plane parallel to the floor. <br />Results: There was a statistical significant differences between mean measurements of the cortical bone thickness penetrated by the mini-screw and the negative stability scores. (P=0.03) <br />Conclusions: There was a weak correlation between the primary stability of the mini-screw and the cortical bone thickness. However, a minimum thickness of 1.0 mm cortical bone thickness is necessary for adequate stability.
miniscrews,stability,cortical bone thickness)
https://edj.journals.ekb.eg/article_76908.html
https://edj.journals.ekb.eg/article_76908_29f772b3ab3649b52adb95921dc63d39.pdf
The Egyptian Dental Association (EDA)
Egyptian Dental Journal
0070-9484
2090-2360
64
Issue 2 - April (Orthodontics, Pediatric & Preventive Dentistry)
2018
04
01
The Effects of Probiotics on the Salivary Streptococcus Mutans and Lactobacilli Levels among Preschool Children: A Clinical Trial
855
862
EN
Rabab
Ibrahim
Salama
Assistant Professor of Dental Public Health and Preventive Dentistry, Faculty of Dentistry, Mansoura University
Rabaa
Mahmoud
Abobakr
Lecturer of Dental Public Health and Preventive Dentistry, Faculty of Dentistry, Mansoura University
10.21608/edj.2018.76909
Background: Prevention of dental caries plays a vital role in dental public health practice. Streptococcus mutans is considered to be the chief pathogen in caries development. One of caries preventive methods is probiotics which can interfere with bacterial colonization, compete with oral microorganisms.<br />Aim: To evaluate the effects of probiotics in yogurts on the salivary Streptococcus mutans and Lactobacilli colonies count among preschool children aged (3 – 6 years).<br />Materials and Methods: A controlled clinical trial was conducted on (350) children who were divided into two groups, control and study group. The control group instructed to ingest one cup of regular yogurt and the study group ingest yogurt with probiotics for two weeks. Salivary Streptococcus mutans and Lactobacilli levels were counted at the baseline and after one week and two weeks of usage. One way ANOVA test, unpaired t test and Tukey post hoc test were used to compare between the groups<br />Results: A statistically significant reduction in salivary Streptococcus mutans colonies count were seen with in the study group compared with the control group. <br />Conclusion: Probiotics showed maximum decrease in the Streptococcus mutans colonies count after short period of usage.
https://edj.journals.ekb.eg/article_76909.html
https://edj.journals.ekb.eg/article_76909_28c91039161180b11c96a89a447b072e.pdf
The Egyptian Dental Association (EDA)
Egyptian Dental Journal
0070-9484
2090-2360
64
Issue 2 - April (Orthodontics, Pediatric & Preventive Dentistry)
2018
04
01
Platelet-rich Plasma Pulpotomy in Primary Molars
863
874
EN
Talat
Mohamed
Beltagy
Assistant Professor of Pedodontics, Faculty of Dentistry, Kafrelsheikh University, Egypt.
10.21608/edj.2018.76912
Background: In spite of the technological advances in dental restoratives, there is <br />a constant need for the development of a novel biologically-based autologous capping substitute that overcomes the side effects of various synthetic-based biomaterials used for pulpotomies. <br />Purpose: To evaluate clinically and radiographically the success of platelet-rich plasma (PRP) medicament in primary molars pulpotomy. <br />Materials and methods: A randomized controlled clinical trial in which 20 children aged 5-8 years were selected. Each child had at least two lower deeply carious primary molars (1st and/or 2nd) indicated for pulpotomy and randomly divided into two groups; The PRP (study group) in one quadrant and formocresol (control group) in the opposite one. All teeth were treated with the same conventional and standard pulpotomy technique. All patients were followed up clinically and radiographically at 3, 6, 9 and 12 months post-operative. Data were statistically analyzed using Fisher exact test. <br />Results: The clinical and radiographic success showed no statistically significant difference between both groups (p > 0.05). The overall clinical success rate of pulpotomized teeth at the end of recall time was 100 % for PRP and 90% for FC group, whereas the overall radiographic success was 90% for PRP and 85% for FC group. <br />Conclusion: From the present study, it was concluded that PRP had a successful outcome, <br />a potent therapeutic medicament and had a promising alternative to the presently used pulpotomy medicament.
platelet-rich plasma,Formocresol,Pulpotomy
https://edj.journals.ekb.eg/article_76912.html
https://edj.journals.ekb.eg/article_76912_9519073099f8efcc46ff8c44e8a22729.pdf
The Egyptian Dental Association (EDA)
Egyptian Dental Journal
0070-9484
2090-2360
64
Issue 2 - April (Orthodontics, Pediatric & Preventive Dentistry)
2018
04
01
Oral Health Status among Egyptian Preschool Children
875
882
EN
Hanaa
Mahmoud
Shalan
Assistant Professor of Pediatric Dentistry, Department of Pediatric Dentistry and Dental Public Health, Faculty of
Dentistry, Mansoura University, Egypt.
Rabaa
Mahmoud
Abobakr
Lecturer of Dental Public Health and Preventive Dentistry, Department of Pediatric Dentistry and Dental Public
Health, Faculty of Dentistry, Mansoura University, Egypt.
10.21608/edj.2018.76915
Background: Oral health is a part of general health, as oral cavity is considered a gateway of the body. Health of dentition and mouth play a major role in the children’s life. Aims: this study aimed to obtain updated information of oral health statues including dental caries situation, gingival condition and traumatic injuries in Egyptian preschool children. <br />Methods: This cross sectional study was carried out in Mansoura city on one thousand children with an age from 3 - 6 years who were attending private and public kindergarten. Children were examined for dental caries using dmft index of primary teeth. Gingival condition was assessed using PMA index (papillary, marginal, and attached gingiva). Upper and lower primary anterior teeth were assessed for signs of dental trauma: treated dental injury, enamel fracture, enamel/dentin fracture, pulp injury, and missing teeth due to trauma. Data were analyzed by Mann-Whitney, Kruskal-Wallis and Chi- square tests. <br />Results: the prevalence of dental caries in preschool children was 61.4%, while the mean dmft was (2.930±3.281) in males and (2.332±2.852) in females. However, prevalence of gingival inflammation was 7.4%, and dental trauma was 10%. Enamel fracture was the highest followed by dentin fracture and discoloration. <br />Conclusion: there was high prevalence of dental caries, while the prevalence of gingival inflammation and traumatic injury were low among Egyptian preschool children.
preschool children,dental caries,gingivitis,dental trauma,prevalence
https://edj.journals.ekb.eg/article_76915.html
https://edj.journals.ekb.eg/article_76915_65b1f9660383b0d4c27daebe6f29a47c.pdf
The Egyptian Dental Association (EDA)
Egyptian Dental Journal
0070-9484
2090-2360
64
Issue 2 - April (Orthodontics, Pediatric & Preventive Dentistry)
2018
04
01
Tooth loss following surgical extrusion of crown-root fractured teeth: A 6-years survival analysis
883
893
EN
Ahmed
Elkhadem
Lecturer in Pediatric Dentistry, Faculty of Dentistry, Cairo University.
Hany
Saber
Lecturer in Pediatric Dentistry, Faculty of Dentistry, Cairo University.
10.21608/edj.2018.76917
Aim: This study aimed to show the adverse effect of surgical extrusion technique in the management of crown-root fractures regarding tooth loss over a six-year follow-up period.<br />Methods: Twenty patients with a crown-root fracture in maxillary incisors were selected from an outpatient clinic in pediatric dentistry department- Cairo University. Twelve males and eight females with age range from 11-14 years participated in this study. Surgical extrusion was performed combined with endodontic treatment. Patients were recalled every year following surgical extrusion to assess the risk of tooth loss.<br />Results: Twenty patients participated in this study with mean age of 131 months. Only <br />17 patients completed a follow-up period of at least one year. Overall, five teeth were lost over a follow-up period of six years constituting 29% (95% CI 13 to 53%) of the study population.<br />Conclusion: Surgical tooth extrusion could be considered as a treatment option for crown-root fractures. Nevertheless, tooth loss is not an uncommon adverse effect. The first two years are critical for deciding the survival of surgical extruded tooth.
https://edj.journals.ekb.eg/article_76917.html
https://edj.journals.ekb.eg/article_76917_f7c6b3185df64fe23621933722b6cede.pdf
The Egyptian Dental Association (EDA)
Egyptian Dental Journal
0070-9484
2090-2360
64
Issue 2 - April (Orthodontics, Pediatric & Preventive Dentistry)
2018
04
01
Root-crown ratio and root canal configuration of Egyptian primary molars sample using CBCT and Clearing Technique: An invitro study
895
909
EN
Dina
M.
Abdelkhalik
Lecturer in Oral Biology, Faculty of Dentistry, Ain Shams University
Dina
H.
Gomaa
Lecturer in Oral Biology, Faculty of Dentistry, Ain Shams University
Hany
M.
Saber
Lecturer in Pediatric Dentistry and Public Health, Faculty of Dentistry, Cairo University
Ahmed
Elkhadem
Lecturer in Pediatric Dentistry and Public Health, Faculty of Dentistry, Cairo University
10.21608/edj.2018.76919
Background: The study of dental morphological characteristics is essential in research as it can provide information about diversities within a population and can also aid in clinical practice.<br />Aim: This work aimed to study the size and root canal morphology of primary molars in <br />a sample of the Egyptian population.<br />Materials and Methods: Eighty primary molars were randomly selected from extracted teeth in children seeking dental treatment. The following measurements were performed: the crown height, root length, root trunk length from the buccal aspect, R/C ratio and mesiodistal dimension of the crown at the contacts. Whereas, the root canal morphology was studied using cone beam computed tomography and clearing technique. Statistical analysis of the previous data was tabulated.<br />Results: The mean mesiodistal crown width of deciduous mandibular first molar was 7.64mm, while that of the maxillary was 6.76mm respectively. It was found that the mean R/C ratio for the deciduous mandibular first molar was 1.45, while that of the maxillary was 1.58. As for the mean mesiodistal crown width of deciduous mandibular second molar was 9.71mm, while that of the maxillary the mean was 8.36mm respectively. Regarding R/C ratio, the mean R/C in the mandibular second molar was 1.79, while for the maxillary the mean was 1.74. The most common canal configuration for deciduous mandibular first molar is type IV in the mesial root and type I in the distal. Type II was the most relevant in the MB root of a deciduous maxillary first molar. Meanwhile, type I was the most common in the DB and type I in the palatal. Deciduous mandibular second molar showed type II and IV as the most common canal configurations in the mesial root and type IV in the distal. As for the maxillary deciduous second molar, type IV was the most common in the <br />MB and DB roots and type I and IV in the palatal roots.<br />Conclusions: Morphological characteristics of primary molars in a sample of Egyptian population were consistent with those of other studies performed in different communities using a similar methodology.
primary molars-root canal morphology-CBCT-Clearing technique
https://edj.journals.ekb.eg/article_76919.html
https://edj.journals.ekb.eg/article_76919_b17c302ffca2b841078ce48bf3956c87.pdf
The Egyptian Dental Association (EDA)
Egyptian Dental Journal
0070-9484
2090-2360
64
Issue 2 - April (Orthodontics, Pediatric & Preventive Dentistry)
2018
04
01
Accuracy of the Electronic Apex Locator in Relation to Patient’s Cooperative Behavior
911
916
EN
Zain
Hafiz
Lecturer, Department of Pediatric Dentistry and Orthodontics, King Saud University, College of Dentistry, Riyadh,
Saudi Arabia
10.21608/edj.2018.76922
Background Root canal length measurement during pulpectomy procedure is an important step for a successful treatment results. The aim of this study is to clinically evaluate the affect of patient’s cooperative behavior on the accuracy of Root ZX (EAL). <br />Materials and Methods Thirty-five primary anterior teeth undergoing pulpectomy procedure in 19 healthy children selected. Root ZX (EAL) used for determining the root canal length electronically. X-ray exposure is done with file in place to confirm the initial working length. Using the digital ruler in the Romexis software the radiographic root canal length measurement is estimated. Afterwards, pulpectomy procedure is completed. <br />Results t-test showed no statistical significant difference p = .132 between the Root ZX (EAL) and digital radiography in determining the root canal length in primary anterior teeth. Considering that the clinically acceptable error tolerance should be ±1 mm, Root ZX (EAL) showed an accuracy of (85.7%) in 18 and 12 (++ve) and (+ve) behavior patients, respectively. <br />Conclusion Root ZX (EAL) showed acceptable accuracy and are comparable to digital radiography in measuring root canal length in primary anterior teeth in children with positive and definitely positive behavior.
primry teeth,apex locator,cooperation,pulp therapy
https://edj.journals.ekb.eg/article_76922.html
https://edj.journals.ekb.eg/article_76922_3ee58242088d52b8d20bcf08b7ce515f.pdf
The Egyptian Dental Association (EDA)
Egyptian Dental Journal
0070-9484
2090-2360
64
Issue 2 - April (Orthodontics, Pediatric & Preventive Dentistry)
2018
04
01
Occlusal and Labial/Buccal Approaches for Measuring MesioDistal Width of Teeth on Chairside Digitally Scanned Models
917
933
EN
Hanady
M.
Samih
Lecturer, Orthodontics Department, Faculty of Dentistry, Suez Canal University, Ismailia, Egypt.
Sherif
E.
Zahra
Lecturer, Orthodontics Department, Faculty of Dentistry, Suez Canal University, Ismailia, Egypt.
10.21608/edj.2018.76925
Objectives: The aim of this study was to evaluate the accuracy of measurements made on intraoral directly scanned 3D digital models compared to stone model measurements using two approaches (from occlusal and labial/buccal aspect). <br />Materials and methods: 3D intraoral digital models and stone models were made for each patient in a sample consisted of twenty randomly selected orthodontic patients. Mesiodistal teeth width and arch perimeter measurements on the digital models taken by occlusal and labial/buccal approaches were compared with those on the corresponding stone models. <br />Results: There was no statistically significant difference, regarding the mesiodistal width measurement of all the teeth, between digital and stone models when using both measuring approaches. However, there was a significant increase in digital measurements than manual measurements for maxillary posterior segments and for maxillary total arch perimeter only when measured by occlusal approach. While all arch perimeter measurements (segmented and total) showed a significant increase in digital measurements when compared those taken manually, in both arches, when measured by labial/buccal approach .<br />Conclusions: The mesiodistal width measurements of each tooth obtained with 3D intraoral chairside digital models and CEREC Premium software by using occlusal or labial/buccal approaches are considered both accurate and reliable. Regarding the arch perimeter measurements, the occlusal measuring approach is better and more reliable than the labial/buccal approach for both stone and 3D digital models. The digital models are clinically acceptable and may be used as an alternative to gold standard stone models.
https://edj.journals.ekb.eg/article_76925.html
https://edj.journals.ekb.eg/article_76925_9b44577fd32c17170b35289530506db9.pdf
The Egyptian Dental Association (EDA)
Egyptian Dental Journal
0070-9484
2090-2360
64
Issue 2 - April (Orthodontics, Pediatric & Preventive Dentistry)
2018
04
01
Impacted Maxillary Canine Relationship to Lateral Incisor: A Retrospective CBCT Analysis
935
941
EN
Hatem
Saifeldin
Lecturer of Orthodontics, Orthodontics Department, Faculty of Dentistry, Ain-Shams University
Mostafa
S.
Ashmawy
Lecturer of Oral Radiology, Oral Radiology Department, Faculty of Dentistry, Ain-Shams University
Hany
S.
Eid
Associate Professor of Orthodontics, Faculty of Dentistry, Misr University for Sciences and Technology
Wael
M.
Aboelmaaty
Lecturer of Oral Radiology and Diagnosis, Faculty of Dentistry, Mansoura University
10.21608/edj.2018.76930
Aim of the study: to assess the relation between impacted canine angle, follicle thickness and proximity to lateral incisor using CBCT.<br />Patients and methods: The total impactions examined were two hundred impacted canines. Two observers with a clinical experience of 17 years viewed the images twice separated by two weeks interval. Measurement of the angle between the midline and long axis of impacted canine and follicle thickness was performed using cone beam computed tomography (CBCT). Regarding canine approximation to lateral incisor, a score was given for each impacted canine.<br />Results: There was a statistically significant inverse (negative) correlation between approximation to lateral incisor scores and canine inclination angle. There was a statistically significant inverse (negative) correlation between approximation to lateral incisor scores and follicle thickness. There was no statistically significant correlation between canine inclination angle and follicle thickness.<br />Conclusion: Practitioners should be aware of relevant diagnostic criteria to detect lateral incisor resorption. Timely detection and prompt preventive measures will lead to avoiding the severe complications due to impacted canines
Impacted canine,Lateral incisor,root resorption,Follicle thickness,CBCT
https://edj.journals.ekb.eg/article_76930.html
https://edj.journals.ekb.eg/article_76930_680fdb80b6c4ce04be9bbd662f3f8480.pdf
The Egyptian Dental Association (EDA)
Egyptian Dental Journal
0070-9484
2090-2360
64
Issue 2 - April (Orthodontics, Pediatric & Preventive Dentistry)
2018
04
01
CORRELATION OF DENTAL CARIES INDEX WITH BODY MASS INDEX IN EGYPTION CHILDREN
943
949
EN
Ahmed
S.
Waly
Lecturer of Pediatric Dentistry and Dental Public Health, Faculty of Dental Medicine, Al-Azhar University Assiut
branch. Egypt
Yasser
R
Sorour
Lecturer of Pediatric Dentistry and Dental Public Health, Faculty of Dental Medicine, Al-Azhar University Assiut
branch. Egypt
Odai
H.
Rizq
Dental Intern, BMC.
10.21608/edj.2018.76933
Background: Childhood obesity is posing a significant health concern due to a sedentary lifestyle and altered dietary patterns and so has changed the dental caries pattern across the world. There are inconsistent reports regarding the association between dental caries and body mass index (BMI) worldwide. The present study aimed to determine the presence of any connection between BMI and dental caries incidence in Egypt of Assuit region.<br />Materials and methods: Demographic data, caries indices (DMFT and deft) and BMI of 254 children were collected after clinical examination and recording weight and height respectively.<br />Results: There was a significant correlation of BMI with DMF/def in all children and girls (136) but not in boys (118). Comparisons of mean BMI and mean DMF/def among four subgroups [healthy (144), overweight (12), obese (30) and underweight (68)] were statistically highly significant. However, correlation of BMI and DMF/def was statistically significant in overweight children only (p<0.00512).<br />Conclusion : There was a significant correlation of BMI with caries index in these children. The Strong relation between caries activity of overweight children and BMI suggests that alteration in food patterns during weight gain period may pose an increased risk for caries.
Body Mass Index,dental caries,children
https://edj.journals.ekb.eg/article_76933.html
https://edj.journals.ekb.eg/article_76933_50c02d55bb8e7b67e39a2cdfb160f134.pdf
The Egyptian Dental Association (EDA)
Egyptian Dental Journal
0070-9484
2090-2360
64
Issue 2 - April (Orthodontics, Pediatric & Preventive Dentistry)
2018
04
01
Clinical and Radiographic Assessment of Pulpotomy Materials in Primary Molars
951
962
EN
Gihan
Abuelniel
Pediatric Dentistry, Cairo University, Egypt
Sherif
Eltawil
* Pediatric Dentistry, Cairo University, Egypt
10.21608/edj.2018.76936
Aim or purpose: Clinical and radiographic evaluation of four different materials utilized in vital pulpotomy in mandibular primary molars<br />Materials and methods: one hundred and sixty mandibular primary molars in forty children were included as split mouth design. Patients were medically free with an age range from 4-6 years. Inclusion criteria: patients presented with deep carious lesions including the first and second primary molars bilaterally, no evidence of any clinical pathology, mobility and had no tenderness to percussion. Pre-operative radiographs showed no evidence of external or internal root resorption, absence of furcal, periapical radiolucency or widened periodontal ligament space and no more than one-third root resorption detected. The included molars undergone vital pulp therapy and bilaterally randomly divided into four equal groups, group (1) formocresol, group (2) ferric sulphate, group (3) MTA (mineral trioxide aggregate) and group (4) Metapex (calcium hydroxide &iodoform). <br />All treated molars were evaluated both clinically and radiographically for 12 months evaluation period. Data were collected and analysed statistically.<br />Results: It was shown that, at base line, there was no statistically significant difference between clinical as well as radiographic success rates among the four groups. After 3 as well as 6 months, there was a statistically significant difference between clinical and radiographic success rates among the four groups. FS, MTA and Metapex groups showed higher clinical and radiographic success rates than FC group.<br />Conclusions: Ferric sulphate, mineral trioxide aggregate (MTA) and Calcium hydroxide and iodoform paste (Metapex) provide clinically acceptable alternative to formocresol in vital pulp therapy in primary teeth.
https://edj.journals.ekb.eg/article_76936.html
https://edj.journals.ekb.eg/article_76936_61236bcf16b7eb7249f5feb41788a550.pdf
The Egyptian Dental Association (EDA)
Egyptian Dental Journal
0070-9484
2090-2360
64
Issue 2 - April (Orthodontics, Pediatric & Preventive Dentistry)
2018
04
01
The efficiency of miniscrew-supported cantilever appliance in molar distalization
963
968
EN
Noha
Hussein
Abbas
Lecturer, Orthodontic Department, Faculty of Dentistry, Ain Shams University.
10.21608/edj.2018.76937
Various appliances have been routinely used for distalization, some of which require patient’s compliance, others have undesirable side effects. Temporary skeletal anchorage devices (TSADs) are the alternatives used nowadays to eliminate these side effects. The aim of this study was to evaluate the skeletal, dental and soft tissue effects of molar distalization using a cantilever arm and miniscrew appliance. A sample of 20 patients who needed upper first molar distalization were recruited. The miniscrew supported cantilever appliance was inserted and open coil springs were used for distalization applying 150 gms on buccal and palatal sides. Pre- (T1) and post-distalization (T2) lateral cephalograms were taken and measured. The results showed significant amount of distalization (4.0 mm) of upper first molar with distal tipping and intrusion. The upper centrals were retracted and intruded. There was an increase in the Frankfort-Mandibularr plane ange (FMA) with no significant soft tissue change. The miniscrew- supported cantilever distalizer is an efficient appliance for the distalization of upper first molars.
https://edj.journals.ekb.eg/article_76937.html
https://edj.journals.ekb.eg/article_76937_188a5e48a2a2f34534732898620883b4.pdf
The Egyptian Dental Association (EDA)
Egyptian Dental Journal
0070-9484
2090-2360
64
Issue 2 - April (Orthodontics, Pediatric & Preventive Dentistry)
2018
04
01
Assessment of Occlusion in Primary Dentition among Preschool Children with Down Syndrome
969
975
EN
Fares
S.
Al-Sehaibany
Associate Professor, Department of Pediatric Dentistry and Orthodontics, College of Dentistry, King Saud University,
Riyadh, Saudi Arabia.
10.21608/edj.2018.76938
Aim: To assess the occlusion in primary dentition among Saudi preschool children with Down syndrome (DS). <br />Methods: This cross-sectional study was conducted over 10 months on 124 Saudi preschool children with DS aged 3-6 years with a complete set of primary dentition. The children were randomly selected from DS centers in Riyadh, Saudi Arabia. The primary molar relationship, canine relationship, overbite, overjet, posterior crossbite and scissors bite were recorded in centric occlusion. <br />Results: The mesial step was the most observed (60.5%) molar relationship among the participants (P=0.001). Moreover, the Class III canine relationship represented 62.9% of the sample (P=0.001). More than one-third of the sample (39.5%) had an edge-to-edge overbite followed by an anterior open bite in 28.2% of the sample (P=0.027). The majority of the children examined (48.4%) had an edge-to-edge overjet followed by reversed overjet (anterior crossbite) in 27.4% of the sample (P=0.001). One-third (33.8%) of the children had a posterior crossbite. <br />Conclusion: The results of this study are considered to be of importance to pediatric dentists making treatment decisions for preschool children with DS.
occlusion,Primary dentition,Down syndrome
https://edj.journals.ekb.eg/article_76938.html
https://edj.journals.ekb.eg/article_76938_bbbb8d75a8eea17f77473f88e19ab19c.pdf
The Egyptian Dental Association (EDA)
Egyptian Dental Journal
0070-9484
2090-2360
64
Issue 2 - April (Orthodontics, Pediatric & Preventive Dentistry)
2018
04
01
Clinical and Radiographic Evaluation of Stainless Steel versus Zirconia Crowns on Primary Molars: Randomized Controlled Trial
977
989
EN
Gihan
Abuelniel
Pediatric Dentistry, Cairo University, Egypt
Sherif
Eltawil
Pediatric Dentistry, Cairo University, Egypt
10.21608/edj.2018.76940
Aim or purpose: To evaluate clinical and radiographic success of Stainless steel crowns versus zirconia crowns on primary molars.<br />Materials and methods: Two hundred and forty vital mandibular primary molars in sixty medically free patients were pulpotomized under general anaesthesia. The patients with an age range 4-6 years. After pulp therapy, molars were restored and divided into two equal groups, group (1) stainless steel crowns(control) and group (2) Zirconia crowns. Clinical and radiographic evaluation were conducted at baseline,3,6,9 and 12 months intervals utilizing Scoring system. Data were collected and analysed statistically.<br />Results: There was no statistically significant difference between GI and OHI scores in the two groups at base line, 3 ,6 months. Stainless Steel crown group showed statistically significantly higher mean GI and OHI scores than Zirconia crown group at 9 and 12 months. After 12 months, 75.8% of the Stainless-Steel crowns showed acceptable clinical and radiographic criteria compared to 80.8% of the Zirconia crowns. The drop out were 5 cases in Stainless Steel crown group comprising 20 molars and 4 cases in Zirconia group comprising 16 molars. However, there was no statistically significant difference between the two groups. After 12 months, 9.2% of the SSC group showed inter-proximal bone resorption compared to 7.5% of the Zirconia crowns. However, there was no statistically significant difference between the two groups. <br />Conclusions: Regarding to the results of the current study, Zirconia crowns proved acceptable clinical and radiographic success compared to stainless steel crowns with an advantage of better esthetics.
https://edj.journals.ekb.eg/article_76940.html
https://edj.journals.ekb.eg/article_76940_82d8cf54754d20f319a90770172e8aa2.pdf