INTRODUCTION:Mandibular fracture treatment aims to achieve adequate reduction of the fracture fragments and immobilize these fragments firmly to restore premorbid occlusion. With a repositioning forceps, an accurate anatomical reduction and better alignment of the fragments occurs that favors bone healing and diminish risks of complications. OBJECTIVES: Evaluation of the effect of using bone reduction forceps in treatment of mandibular fractures clinically and radiographically. MATERIALS AND METHODS:A prospective study was done on ten patients complaining of displaced isolated mandibular fractures. Fracture reduction was done using bone reduction forceps then fixation by miniplates and screws. The patients were followed up clinically for 3 months postoperatively evaluating pain, facial edema, occlusal disturbances, maximal mouth opening and wound healing. Radiographic evaluation was performed by computed tomography preoperatively, and cone beam computed tomography was done after 3 and 6 months postoperatively. The results were calculated and statistically analysed to indicate the efficacy of using the forceps in treatment of displaced mandibular fracture. RESULTS: Clinically, all parameters evaluated were statistically significant along the follow up period (p value ≤0.05) except for pain that was only significant at 6 th and 12 th week in comparison to that of the first week. Radiographically, postoperative CBCT showed an increase in bone density in fracture site, the results were statistically significant at 3 and 6 months postoperatively as p value <0.0001. CONCLUSION: Using bone reduction forceps followed by semi-rigid fixation by miniplates was easy and safe for the treatment of isolated mandibular fractures with small number of major complications.

INTRODUCTION:Rehabilitation of maxillary posterior region with endosseous implants is complicated in the presence of insufficient residual alveolar ridge and maxillary sinus pneumatization. New bone formation without any bone grafting materials has achieved promising results in sinus augmentation. Melatonin and hyaluronic acid suggest satisfying results in enhancing bone defect repair, osseointegration of dental implants. OBJECTIVES: To evaluate the effectiveness of melatonin and hyaluronic acid combination on bone regeneration in maxillary sinus augmentation. MATERIALS AND METHODS: 16 patients with missed maxillary posterior teeth indicated for sinus augmentation were divided equally into; group I, received melatonin and hyaluronic acid after sinus membrane elevation with simultaneous implant placement, and group II, did not receive any materials after the procedure. Clinical evaluation were done for pain, swelling, complications, and implant stability and radiographically for vertical bone height gain, bone density, and marginal bone level. RESULTS: There was a significant increase in bone density on the 1st and 6th months postoperatively in each group and between both groups (p ≤ 0.05). Regarding vertical bone height gain and implant stability, there was significant increase in each group, whereas the increase was insignificant between both groups. Marginal bone level difference between both groups was insignificant. Sinus membrane perforation occurred in one case only which did not affect the procedure completion; and there was no failure or complications along the follow up periods. CONCLUSION: Melatonin and hyaluronic acid could have a considerable properties regarding bone density in sinus augmentation without complications.

Introduction:Recently, three dimensional plates were introduced to treat mandibular fracture aiming to neutralize compressive, tensile and torsional force and thus providing better stability across the fracture line. Studies have been conducted to evaluate efficacy of these plates ,which include a wide array of configurations, in treatment of mandibular subcondylar fractures. Objectives: To compare the efficacy of rhombic three-dimensional plate versus trapezoidal three-dimensional plate in treatment of mandibular subcondylar fractures. Objectives: To compare the efficacy of rhombic three-dimensional plate versus trapezoidal three-dimensional plate in treatment of mandibular subcondylar fractures. Methodology: Twenty patients with mandibular subcondylar fractures indicated for open reduction were recruited in the study. Patients were randomly divided into two equal groups; group A was treated with the rhombic three-dimensional plate, while group B was treated with the trapezoidal three-dimensional plate. Both groups were followed up clinically and radiographically for a period of 6 months to evaluate the patients mandibular movements, mandibular deviation on mouth opening and bone density in the fracture line. Results: There was no statistically significant difference between the two groups regarding mandibular movements and mandibular deviation in mouth opening. However, group B showed a significantly higher mean bone density in the fracture line than group A. Conclusion: Both rhombic and trapezoidal plates are effective in treatment of subcondylar fracture with minimal complications. Furthermore, trapezoidal plates provides a better fracture stabilization and thus better bone healing when compared to the rhombic plate.

Introduction: Plasma derivatives have been used widely in the field of dental implantology since the introduction of the first generation platelet rich plasma (PRP) to enhance both soft tissue and bone formation. Recently, mineralized plasmatic matrix (MPM) has introduced the advantage of encasing both the bone graft and the required growth factors in a fibrin meshwork that can maintain its form while enhancing bone formation.Objective: is to clinically and radiographically evaluate the effect of platelet rich plasma mixed with bone graft versus mineralized plasmatic matrix on peri-implant bone formation and osseointegration. Materials and Methods:Sixteen patients with missing anterior teeth were included in the study and divided into two groups; in group A, MPM was placed simultaneously with delayed implant placement while in group B, PRP mixed with biphasic calcium phosphate bone graft and a collagen membrane were used to cover the dehiscence after implant placement. Patients were followed up clinically and radiographically for 9 months to assess implant stability and labial bone thickness and density.Results: Regarding implant stability, there was no significant difference between the 2 groups. However, when it comes to labial bone thickness and the change in labial bone density, there was a statistically significant difference between the two groups in favour of the MPM group. Conclusion:MPM is a cohesive meshwork of bone graft, fibrin and growth factors achieving better bone formation in terms of quantity and quality when compared with the first generation plasma derivative PRP mixed with biphasic calcium phosphate.

Introduction: Rehabilitation of the anterior maxilla using dental implants is frequently problematic because of the deficiency of alveolar ridge width. Under certain conditions ridge augmentation with simultaneous implant placement is recommended. Objectives:To evaluate horizontal augmentation of narrow anterior maxillary alveolar ridge with simultaneous implant placement using Cerabone® with and without platelet rich plasma (PRP). Materials and Methods:In this study, 14 implants were placed in patients with insufficient alveolar ridge width in the maxillary lateral incisor region. Patients were divided into two groups; In Group "1" Cerabone® only was used as an augmentation material while in Group "2" a mixture of Cerabone® and PRP was used. A collagen membrane was used to cover the grafting material. Postoperative pain was assessed using visual analogue scale. Healing and postoperative edema were evaluated. Cone 2 Alexandria Dental Journal. Volume XX Issue X.Beam Computed Tomography (CBCT) was obtained before surgery, immediately postoperatively and after 6 months so that the labial bone width and bone density were evaluated. Osstell was used to evaluate implant stability quotient (ISQ) during surgery and after 6 months.Results: All implants in both groups were successfully osseointegrated and functionally stable. No significant difference in postoperative pain, edema or wound healing was detected between the two groups. The mean percentage of change in ISQ was superior in Group "2" when compared to Group "1", but statistically there was no significant difference (P=0.898). The labial bone width in Group "2" was significantly higher than that of Group "1" (P=0.002). The mean percentage of change in labial bone density was 57.95% in Group "1" and 112.52% in Group "2" (P=0.848). Conclusion:Cerabone® can be used effectively for guided bone regeneration around dental implant in narrow maxillary anterior alveolar ridges. Moreover, the addition of PRP has a positive effect on bone regeneration around implants.