2024-03-28T16:20:05Z
https://edj.journals.ekb.eg/?_action=export&rf=summon&issue=11155
Egyptian Dental Journal
0070-9484
0070-9484
2017
63
Issue 4 - October (Oral Surgery)
BONE MORPHOGENIC PROTEIN EXPRESSION OF INDUCED MEMBRANE USING TWO TYPES OF POLYMETHYL METHACRYLATE SPACERS IN MANDIBULAR SEGMENTAL DEFECTS: AN EXPERIMENTAL STUDY
Mostafa
El Gengehy
Sherif
Ali
Aim: The aim of this study was to evaluate bone morphogenic protein-2 (BMP-2) expression in the induced membrane formed around mandibular segmental defect filled with 2 types of polymethyl methacrylate (PMMA) spacer over a period of 2, 4, 6 and 8 weeks, and to question whether the use of dental self cure acrylic resin spacer instead of PMMA bone cement spacer affect histological and osteopromotive characters of the induced membrane Materials and methods: This study was conducted on 24 healthy male mongrel dogs. For each animal segmental mandibular resection was performed to create a critical size defect. The defect is filled with PMMA bone cement spacer in 12 animals, while for the other 12 animals the spacers were fabricated from self cure acrylic resin. 6 dogs (3 dogs from test group and 3 from control group) were scarified at 2, 4, 6 and 8 weeks postoperatively for histological and immunohistochemical analysis. Results: Histological result showed similar reaction in both groups. Immunohistological results showed that 4th week represents the peak of BMP-2 expression in both groups. Conclusion: This study indicated that the optimal time for reconstruction is 4 weeks after spacer insertion. It also showed that dental self cure acrylic resin can be used instead of PMMA bone cement
Masquelet technique
Mandibular reconstruction
Bone morphogenic proteins
polymethyl methacrylate
2017
10
01
3005
3014
https://edj.journals.ekb.eg/article_76083_d29cad639ec51c3f4cc2f4d1f3092de5.pdf
Egyptian Dental Journal
0070-9484
0070-9484
2017
63
Issue 4 - October (Oral Surgery)
EFFICACY OF TWO DIFFERENT RECONSTRUCTION MODALITIES AFTER SURGICAL RESECTION OF MANDIBULAR FIBROUS DYSPLASIA (A CLINICAL STUDY)
Abdelbadia
Abdelmabood
Abdel
Abdullah
Hossam
Mohamed
Omar
Ali
Objective: To evaluate efficacy of Nonvascularized bone graft ( NVBG) with bone marrow aspirate concentrate (BMAC) compared with free vascularized fibula graft in reconstruction of mandible after surgical treatment of monostatic mandibular fibrous Dysplasia. Patients and methods: The present study was carried out of three years on 14 patients (8 males & 6 female) ranging from 9- 18 years who had monostatic fibrous dysplasia and need segmental resection and immediate reconstruction. The patients were divided randomly into two equal groups; group I patients grafted with free vascularized fibula graft after segmental resection and group II patients grafted with iliac crest or rib bone graft and injected with BMAC at surgical site after radical excision of lesion. They were selected from those attending the out patient clinic at Faculty of Dental Medicine, Al Azhar University, Assuit branch and the Faculty of Dentistry, in coordination with Plastic Surgery at Suez Canal University Hospital over a period of 4 years (July 2013 –July 2017). Postoperative clinical, radiographic evaluation were performed at 6 month and 12 month till two years after that to assess recurrence of lesion and bone graft density.Results: Both groups was clinically uneventful except two cases in group I and one case in group II .All patients had adequate facial contour, proper facial symmetry and good take post operatively. Radiographic evaluation showed at six month, there was a highly statistically significant difference between two groups. This means that, newly formed bone of group I was significantly denser than group II. At 12 months, the mean of the group I was more than the mean of group II . These showed a difference between means of two groups but this difference was not a statistically significant . Conclusion: Conventional grafting techniques with NVBGs improved by BMAC injection with satisfactory outcomes . Thereby it can be used as alternative modality for free vascularized bone graft in mandibular reconstruction in cases with massive monostatic fibrous dysplasia depend on the size of the lesion
2017
10
01
3015
3025
https://edj.journals.ekb.eg/article_76086_504807b2e133a905d4a2187e52c171a6.pdf
Egyptian Dental Journal
0070-9484
0070-9484
2017
63
Issue 4 - October (Oral Surgery)
TRAUMATIC BONE CYST OF THE MANDIBLE; DIAGNOSTIC CHALLENGE AND MANAGEMENT A CASE REPORT
Abeer
Elsagali
Nuri
Alarabi
Abdurahman
Elmezwghi
Laila
Hamad
The traumatic bone (TBC) cyst is an uncommon benign empty or fluid containing cavity within bone that is not lined by epithelium. The etiopathogenesis of TBC is still unknown. TBC is frequently encountered in young patients during the second and third decades of life. Sex predilection is equal but some studies in literature suggest clear female predominance. Body of the mandible between the canine and the third molar is the most common site (75%) in head and neck region followed by mandibular symphysis. The cysts are usually asymptomatic. Associated teeth are usually vital with no resorption or displacement. It expands the cortices and, seldom, intraoral or extra oral swelling may be seen. Most of the TBCs are diagnosed incidentally in orthopantomogram (OPG). On radiographic examination, a unilocular irregular but well defined lytic lesion is seen characteristically extending between the roots of the teeth. TBC is representing approximately 1% of all jaw cysts. A final diagnosis of a TBC is almost invariably made at the time of surgery, where in identification of an empty air-filled cavity serves as a valuable diagnostic tool. Surgical exploration was proved not only essential in making the right diagnosis but also curative from a treatment plan perspective. Recurrence of TBC is assumed to be extremely rare. However, a distinct proportion of recurrences may occur.
2017
10
01
3027
3034
https://edj.journals.ekb.eg/article_76088_80d8fff34b5fe832e7384dfb40d9b3c9.pdf
Egyptian Dental Journal
0070-9484
0070-9484
2017
63
Issue 4 - October (Oral Surgery)
CLINICAL OUTCOME OF GRAFTLESS SINUS LIFTING
Ramy
Elbeialy
To examine the outcome of graftless sinus floor elevation with simultaneous implant placement. Patients and methods: 18 implants were inserted with simultaneous implant placement in grafted versus non grafted sinus lifting. Results: Comparable results were obtained from both groups regarding the quality and stability of the newly formed bone. Summary and conclusion: Graftless sinus lifting with simultaneous implant placement is a predictable technique.
Sinus lifting
implant in sinus
graftless sinus lift
2017
10
01
3035
3055
https://edj.journals.ekb.eg/article_76095_ef848a8deb86bc728c296bc8914ea50f.pdf
Egyptian Dental Journal
0070-9484
0070-9484
2017
63
Issue 4 - October (Oral Surgery)
EFFECT OF BONE REGENERATION WITH PLATELETS RICH FIBRIN VERSUS MINERALIZED PLASMATIC MATRIX FOR IMMEDIATE IMPLANT PLACEMENT
Nader
Elbokle
Omnia
Sultan
Ingy
Chehata
Ahmed
Hossam
Objectives: This study was conducted to assess and compare the effect of platelets rich fibrin (PRF) versus mineralized plasmatic matrix (MPM) as bone regenerative materials during immediate implant placement.Material and Methods: A total of 10 patients with 12 implants have been included in this study, patients were divided into 2 groups. Group I received Mineralized Plasmatic Matrix (MPM), and group II received Platelets Rich Fibrin (PRF) as bone regenerative materials for immediate implant placement. The treatment outcome was evaluated clinically and radiographically at 3 and 6 months of implant placement. Also bone height and bone density were measured radiographically preoperatively, immediate post operatively, at 3 and 6 months postoperatively and statistically analysed.Results: Statistical analysis showed that bone density increased significantly (p≤0.05) at 3, and 6 months postoperatively in both groups. By comparing the two groups, Group I had statistically significant (p≤0.05) higher bone density scores than Group II at all of the follow up intervals. Regarding the bone height, there was no statistically significant difference (P ≥ 0.05) between the two groups at all of the follow up intervals except that group I showed a statistically significant (P ≥ 0.05) higher mesial bone height level at 3and 6 months postoperatively accompanied by a statistically significant (P ≥ 0.05) higher distal bone level as well at 6 months postoperatively than that of group II.Conclusion: The use of MPM was more superior to PRF as bone regenerative material for immediate implant placement regarding bone height and bone density.
Immediate implant
PRF
MPM
bone regeneration
osteointegration
growth factors
and platelet concentrates
2017
10
01
3057
3067
https://edj.journals.ekb.eg/article_76098_afb2eb809892c0f8c0e1e56d49d38a31.pdf
Egyptian Dental Journal
0070-9484
0070-9484
2017
63
Issue 4 - October (Oral Surgery)
THE USE OF BOTULINUM TOXIN INJECTION IN THE MANAGEMENT OF MYOFASCIAL PAIN DYSFUNCTION SYNDROME
Nashwa
osama
Sayed
Attia
Mohamed
Farmawy
Amany
Nemmat
Mahmoud
Shalash
Objectives: To evaluate the short-term effect of the botulinum toxin, type A (BTX-A) injection for the treatment of myofascial pain dysfunction syndrome.Materials & Methods: Foueteen female patients suffering from myofascial pain dysfunction syndrome were included in this study. For all patients both the masseter and temporalis muscles were injected once with 20-30 Units of BTX-A respectively and followed up for three months. Follow up included clinical assessment of maximal inter-incisal opening, range of lateral movement and visual analogue scale for pain. Electromyography (EMG) images were ordered pre-operatively and at the end of 3 months’ period to quantify the changes in muscle activity. Results: Results of the present study showed resolution of pain in all patients upon completing the follow up period. Conclusion: Within the limits of this study BTX-A can be used effectively for the treatment of myofacial pain dysfunction syndrome.
2017
10
01
3069
3075
https://edj.journals.ekb.eg/article_76102_52fa54a573d53feabcaade686fea31fc.pdf
Egyptian Dental Journal
0070-9484
0070-9484
2017
63
Issue 4 - October (Oral Surgery)
RECOMBINANT HUMAN BONE MORPHOGENETIC PROTEIN-2 VERSUS AUTOGENOUS BONE GRAFT IN THE RECONSTRUCTION OF MAXILLARY ANTERIOR ALVEOLAR RIDGE DEFECTS
Lamia
Kader
Nader
Elbokle
The purpose of this study was to evaluate the effect of recombinant human bone morphogenetic protein-2 (rhBMP-2) delivered in an absorbable collagen sponge (ACS) carrier on reconstructing the alveolar ridge defect and obtain newly formed bone as an alternative to autogenous bone grafting thus eliminating the dilemma and morbidity related to donor site.A clinical investigation was carried out on sixteen patients at outpatient clinic of the Oral Surgery Department, Faculty of Oral and Dental Medicine, Cairo University, presented with alveolar ridge defects in the anterior maxilla. Thorough pre-operative assessment of the patients was carried out including history taking, physical examination and radiographic examination. The pre-operative volume, height, width and density of the defective alveolar ridge were measured on Computed Tomographic Cone Beam scan (CBCT).The patients were divided into 2 groups; Group (I) comprised 8 patients who received (rhBMP-2) delivered in an absorbable collagen sponge (ACS), Group (II) comprised 8 patients who received autogenous chin graft.The follow-up period was 6 months in the form of clinical evaluation and radiographic evaluation by CBCT scans to measure the amount of bone fill and bone density.At the end of the follow-up period no signs of infection or evidence of bone resorption were found. The radiographs showed newly formed bone and increase in alveolar bone dimensions in all cases. There was significant increase of bone width, height volume and density six months post-operatively in both group I (rhBMP-2) and Group II (Autogenous Bone) (p <0.001). However, there was no significant difference between Group I (rhBMP-2) and Group II (Autogenous Bone) postoperatively as regards bone width, height volume and density respectively (p> 0.01).rhBMP-2/ACS is an alternative source to substitute the autogenous bone graft to obtain newly formed bone and eliminate the dilemma and morbidity related to donor site.
2017
10
01
3077
3092
https://edj.journals.ekb.eg/article_76103_e928ccec4d8f0ca723da11e13bfdd096.pdf
Egyptian Dental Journal
0070-9484
0070-9484
2017
63
Issue 4 - October (Oral Surgery)
MAGNETIC RESONANCE EXAMINATION OF TMJS FOLLOWING OPEN REDUCTION AND INTERNAL FIXATION USING RHOMBUS AND TWO MINIPLATES IN MANAGEMENT OF UNILATERAL SUBCONDYLAR FRACTURE
Yasser
Helmy
Heba
Selim
The objective of this study was to present a prospective study to investigate TMJ following open of unilateral subcondylar fracture using MRI. 30 adult male patients with recent history of unilateral mandibular subcondylar fractures were included. Three groups based on the method management of the subcondylar fracture mandibular fracture. Group 1 comprised patients who had unilateral condylar fractures treated by open reduction and internal fixation of subcondylar fracture using 3D rhombus plate (Orthomed) Group 2 patients were treated by open reduction and internal fixation of subcondylar fracture using 2 mini plates. Group 3 Control group were treated patients had a unilateral condylar fracture treated by closed reduction. Magnetic resonance imaging was performed on the patients within 10 days from the primary injury. The same clinical examination, radiographic and magnetic resonance imaging were performed six months later. The result of this study demonstrate that,there was no statistically significant differences observed between the three treatment groups for parameters like age, gender, type and side of the fracture, mechanism of injury and incidence of associated injuries, post-operative occlusion and need for IMF There was a no statistically significant difference between the MRI findings in all groups.
Magnetic resonance
Open reduction
Subcondylar fracture
2017
10
01
3093
3099
https://edj.journals.ekb.eg/article_76104_642c97d7dc2af0e6471aa84a0b747786.pdf
Egyptian Dental Journal
0070-9484
0070-9484
2017
63
Issue 4 - October (Oral Surgery)
CORRELATION BETWEEN THE CHANGE IN ORBITAL VOLUME AND CORRECTION OF ENOPHTLAMOUS IN DELAYED POST-TRAUMATIC CASES
Yasmine
Nassar
Adel
Abou-ElFetouh
Background: Post-traumatic enophthalmos is a multifactorial phenomenon that can be attributed to the increased orbital volume, loss of ligamental support of the globe or atrophy of orbital fat. Early restoration of orbital volume has been associated with an improvement in the maximal corneal projection and reduced enophthalmos. However, delayed repair of orbital fractures is more complicated due to the evident scarring of periorbital tissues.Aim of the study: The aim of this study was to correlate post-operative correction of the corneal projection to the degree of correction (decrease) of the orbital volume after delayed repair of orbital fractures.Patients and Methods: Ten patients suffering from unilateral orbital fracture who were treated one month or more from the date of trauma were included in this study. All patients received a preoperative CT that was imported into a surgical planning software to quantify the preoperative orbital volume as well as the maximal corneal projection of the traumatized orbit. One-month postoperatively, the patients received another CT scan to once again quantify the reconstructed orbital volume and to record any improvement in the maximal corneal projection. Results were recorded in the form of means ± standard deviation and Pearson’s correlation coefficient was implemented to analyze the correlation between the change in the orbital volume and the change in the degree of enophthalmos.Results: The mean decrease in the orbital volume was 4.27cm3 ± 3.60 while the mean increase in corneal projection was 2.24mm ± 1.16. Statistical analysis revealed a strong positive correlation between the forward translation of the maximal corneal projection and the change (decrease) in the orbital volume following reconstruction with a correlation coefficient (R) value of 0.82 which indicated strong correlation. The value of R2, the coefficient of determination is 0.67. The P value was 0.0125 which was significant at levels < 0.05.Conclusions: From the current study, it can be concluded that even in delayed cases the accurate reconstruction of the bony walls resulting in a decrease in the orbital volume is an important factor in correcting post-traumatic enophthlamos, as both variables showed a strong correlation to each other
2017
10
01
3101
3106
https://edj.journals.ekb.eg/article_76105_cf14b34dc72d2296ceb89a49db088bcf.pdf
Egyptian Dental Journal
0070-9484
0070-9484
2017
63
Issue 4 - October (Oral Surgery)
RADIOGRAPHIC ASSESSMENT OF MANDIBULAR SYMMETRY FOLLOWING RECONSTRUCTION OF SEGMENTAL MANDIBULAR DEFECTS
Adel
Abou-ElFetouh
Yasmine
Nassar
Restoration of symmetric facial contours after resection of mandibular tumors is one of the requisites of a successful reconstructive surgery. For unilateral mandibular defects and using the “mirroring” feature available in many surgical simulation software, it is possible to restore the undistorted mandibular contours and bend the reconstruction plate prior to surgery. The aim of this study: is to assess whether pre-bent mandibular reconstruction plates using computer-assisted techniques for post tumor-ablation defects are good enough at restoring mandibular symmetry radiographically. Patients and Methods: eight patients with segmental mandibular post-tumor resection defects, to whom a computer assisted planning and pre-bending of the reconstruction plates were performed; were included in this study. For each patient, on the 3D reformatted image, a midsagittal plane was constructed and the perpendicular distances were measured from the midsagittal plane to the titanium reconstruction plate and to the contralateral intact side on the axial cuts. The mean differences calculated and statistically analyzed. Results: The mean of the differences between the intact and reconstructed sides of the mandible showed normal data distribution. Overall mean among all patients was 0.7225 mm ± 0.24467. One-sample t test against a hypothetical mean difference of 0 mm revealed an extremely statistically significant difference between the intact and reconstructed sides with a p-value < 0.0001. Conclusion: Computer-assisted precontoured mandibular reconstruction plates can be considered to offer a very good degree of symmetry during mandibular reconstruction procedures.
2017
10
01
3107
3111
https://edj.journals.ekb.eg/article_76107_37d036257978737fceafa875cca13f4d.pdf
Egyptian Dental Journal
0070-9484
0070-9484
2017
63
Issue 4 - October (Oral Surgery)
INTRA ARTICULAR INJECTION OF HYALURONIC ACID ALONE IN COMPARISON WITH HYALURONIC ACID AND PRP IN THE TREATMENT OF INTERNAL DERANGEMENT OF TEMPOROMANDIBULAR JOINT
Khaled
Saad
Objectives: This study aimed to compare the efficacy of intrarticular injection of HA alone versus HA and PRP in the treatment of internal derangement of the temporomandibular joint. Patients and Methods: Twenty patients were involved in our study, divided into two equal groups, group (1), treated with intraarticular injection of HA alone and group (2) treated with intraarticular injection of HA and PRP. All patients were diagnosed with internal derangement of the TMJ. The patients were evaluated clinically and radiographically preoperatively and postoperatively: clinically for evaluation of pain intensity, maximal mouth opening and lateral movements. Radiographically by panoramic and MRI images for detection of the condyle disc relationship and detection of any pathological changes. Postoperatively the patient’s clinical data including pain intensity, maximal mouth opening and the lateral movements were evaluated at one week and 2, 3 weeks and one month and 2,3 and 6 months. Radigraphically using MRI images to determine any changes in the TMJ after injection at 6 months. Results: Twenty patients, nineteen females and one male, their ages ranged from18-55 years with a mean of 29.5 years. The results of the clinical data including pain intensity, maximal mouth opening and lateral movements presented with significant improvements of all outcomes from preoperative to 6 months postoperatively for group (2) when compared with group (1). Radigraphically MRI after 6 months presented with no changes in the disc condyle relationship. Conclusion: Intraarticular injection of HA and PRP considered to be strongly effective and optional treatment of internal derangement of TMJ when compared to HA alone by controlling pain, improving mouth opening and the lateral movements for up to 6 months.
2017
10
01
3113
3124
https://edj.journals.ekb.eg/article_76108_dfa9193bd0c4a36c773f728493250559.pdf
Egyptian Dental Journal
0070-9484
0070-9484
2017
63
Issue 4 - October (Oral Surgery)
ASSESSMENT OF STEREOLITHOGRAPHIC MODELING TECHNOLOGY VERSUS CONVENTIONAL RECONSTRUCTIVE PLATE IN PATIENTS WITH MANDIBULAR DISCONTINUITY DEFECTS
Amany
El-Sayed
Ahmed
Salah
Introduction : One of the goals of mandibular reconstruction after tumor resection is to return to premorbid form and function. Both stereolithography (SLG) and a conventional reconstructive (CR) plates with bone replacement are a valuable for reconstruction following resection of tumors.Purpose: The aim of this study was to compare the outcome of (SLG) modeling technology versus (CR) plate in cases of tumor resection. Materials and Methods: Patients eligible for inclusion in this study had unilateral mandibular discontinuity defects. Patients were randomly divided into 2 groups. Each group comprised 10 patients. In group I (study group), (SLG) modeling technology plates were used, while group II (control group) used (CR) plates. The lesions were resected, and their sites were reconstructed using last mentioned plates, with autogenous bone graft in a second stage. The need for intraoperative plate readjustment, plate placement time and operation time were reviewed. Results: Twenty patients were enrolled in this study. In group I, plates were placed without intraoperative handling. All plates in group II required readjustment. Average operating times were 3.200 ± 0.258 hours in group I and 4.325 ±0.290 hours in group II (P = .000). Mean times for plate placement were 22.900 ± 2.234 minutes and 32.900 ± 2.234 in groups I and II, respectively. The difference resulted in an average time gain of 10 minutes.Conclusion: (SLG) modeling technology is superior in reflecting the bone anatomy than (CR) plate, thus the plate prebending using SLG, eliminating intraoperative plate readjustment and providing better plate adaptation with better contour. It decreases operating time.
2017
10
01
3125
3132
https://edj.journals.ekb.eg/article_76109_1f3fb1f7147eb2c84b0f415209d03745.pdf
Egyptian Dental Journal
0070-9484
0070-9484
2017
63
Issue 4 - October (Oral Surgery)
EFFICIENCY OF TEMPOROMANDIBULAR JOINT ARTHROCENTESIS WITH OZONATED WATER IN MANAGEMENT OF ANTERIOR DISC DISPLACEMENT WITHOUT REDUCTION: A RANDOMIZED CLINICAL TRIAL
Alshaimaa
Shabaan
Dina
Sabry
Objective: The aim of the study was to evaluate the efficiency of temporomandibular joint arthrocentesis with ozonated water versus ringer lactate in treatment of anterior disc displacement without reduction (closed lock) and to evaluate the effect of both procedures on the level of interleukin-6 (IL-6) in the joint space.Patients and methods: Forty patients with bilateral anterior disc displacement without reduction were included in the study. Patients were randomly allocated into 2 groups. Group I performed arthrocentesis using ozonated water while group II underwent the same procedure using sodium ringer lactate. Clinical evaluation of the patients was done preoperative, immediately ostoperative, at 1 week and 1, 3 and 6 months postoperatively. The pain was assessed using visual analog scales. Maximal mouth opening (MMO) was recorded at each follow-up visit. Synovial fluid sample was collected to detect the level of IL-6, preoperative, immediately postoperative and at six months postoperativeResults: Both groups showed improvement in clinical parameters. Concerning maximal mouth opening, there was no statistically significant difference between the two groups pre-operatively, after 1 week as well as after 1 month. After 3 months and 6 months, Group I showed statistically significant higher mean MMO than Group II. the pain score assessment showed no statistical significant difference between the two groups pre-operatively. Through all other periods, Group I showed statistically significantly lower mean VAS scores than Group II. The interleukin-6 levels showed no statistically significant difference between the two groups pre-operatively. Immediately post-operative as well as after 6 months, Group I showed statistically significantly lower mean IL-6 level than Group II.Conclusion: Arthrocentesis using ozonated water proved to have superior results in treatment of TMJ anterior disc displacement without reduction. Interleukin-6 level in the TMJ synovial fluid has direct correlation with the dysfunction symptoms.
Disc displacement without reduction
Ozonated water
Arthrocentesis
Interleukin-6
2017
10
01
3133
3142
https://edj.journals.ekb.eg/article_76111_e31b1f318e5395b96c75fabead3cd87c.pdf
Egyptian Dental Journal
0070-9484
0070-9484
2017
63
Issue 4 - October (Oral Surgery)
RIDGE PRESERVATION USING COLLAGEN CONE FOR IMPLANT SITE DEVELOPMENT: CLINICAL, RADIOGRAPHICAL AND HISTOLOGICAL STUDY
Maggie
Khairy
Alshaimaa
Ahmed
Inass
Abou Elmagd
Objectives: the aim of the study was to evaluate the clinical and histological outcomes of extraction socket grafted with collagen cone in comparison to extraction site that healed naturally for implant site development.Patients & Methods: Twenty-six healthy patients require extraction of a single rooted tooth participated in this study. They had been divided into 2 groups. In Group I (control), the extraction socket was left with no graft to heal with secondary intention. While in group II (study), the socket was filled with collagen cone. Implants were inserted in average of 3 months after socket grafting. Cone Beam CT (CBCT) images were done prior to implant insertion to asses height and width of the ridge as well as bone density. Core biopsies were taken during implant placement. While implant stability test (ISQ) were done right after the implant was placedResult: The vertical bone changes at the grafted sockets were significantly lower (p < 0.0001) when compared to non-grafted sockets. Moreover, the width reduction of the grafted sites was significantly lower (p < 0.0001) than the non-grafted group. No significant difference was detected in RFA between two groups. Values of bone density was higher in the grafted sites.Conclusion: the alveolar preservation with collagen cone is an effective way to maintain the ridge dimensions after tooth extractions.
Socket preservation
Collagen cone
tooth extraction socket
alveolar ridge
2017
10
01
3143
3153
https://edj.journals.ekb.eg/article_76114_3826fc522f40c2d4afcfc613514df37d.pdf
Egyptian Dental Journal
0070-9484
0070-9484
2017
63
Issue 4 - October (Oral Surgery)
EVALUATION OF MASSETER MUSCLE ACTIVITY USING ELECTROMYOGRAM FOLLOWING TEMPOROMANDIBULAR JOINT ARTHROCENTESIS
Haytham
AlMahalawy
Purpose: The aim of this study was to measure the masseter muscles activity by electromyogram before and after arthrocentesis in patients with temporomandibular disorders.Materials and methods: Twelve patients with unilateral painful TMJ, diagnosed by RDC/TMD as group II and indicated for unilateral TMJ arthrocentesis are considered as the study group. In this group, electromyographic analysis was performed before and four weeks following the arthrocentesis. The healthy control group included 6 volunteers without any signs and symptoms of temporomandibular disorders. Electromyographic analysis was performed and compared to that of the study group. Results: Comparison of the electromyographic values of the affected side in the study group before and after arthrocentesis showed that only the amplitude during moderate clenching revealed significant differences after four weeks (p=0.02). Differences in all other parameters were statistically insignificant Conclusions: TMJ arthrocentesis is an effective technique for the treatment of the disc displacements sub-types of TMDs. Following arthrocentesis, definite improvement in clinical results is achieved, but improvement in muscle function is only partial as measured by surface electromyography (SEMG). SEMG is a simple non-invasive technique for monitoring of the treatment outcomes on muscle activity in TMDs. EMG analysis for the diagnosis of TMDs is not specific, because the EMG values before and after the arthrocentesis were within the range of normal values of the control group.
2017
10
01
3155
3167
https://edj.journals.ekb.eg/article_76168_c73c3a2d1302a1965d33e11bf19e9e5a.pdf