Aim: It was to evaluate the use of topical ozone gel on post-operative sequelae following impacted lower third molar surgery. Subjects and Methods: the current study included 30 patients divided randomly into equal three groups. Clinical examination included assessment of maximal mouth opening and cheek dimensions preoperatively. Panoramic x-ray was used for evaluation of the location and configuration of impacted lower third molar, surrounding bone, mandibular canal and adjacent tooth. The maximal mouth opening and check dimensions were remeasured postoperatively at days 2, 5 and 7. All readings were recorded and analyzed statistically. Results: Results showed statistical significance regarding pain while there was no statistical significance regarding mouth opening and swelling. Conclusion: Topical ozone gel is useful for the reduction of postoperative pain after lower third molar surgery.

Aim: is to evaluate efficacy of platelet rich fibrin (PRF) sandwiching technique associated with hyaluronic acid (HyA) mixed with alloplastic bone graft in closure of recurrent oronasal fistula after previously alveolar cleft grafting. Subjects and Methods: Our study conducted on 24 patients with recurrent unilateral oronasal fistula complaining of oronasal leakage. They were divided into two random equal groups. Group I, alveolar cleft defect was packed with alloplastic bone graft ( osteon II collagen) between two layers of PRF gel. While, in group II, alveolar cleft defect was packed with a mixture of alloplastic bone graft (osteon II collagen) and HyA between the two layers of PRF gel. All patients were observed clinically and radiographically (CBCT) for evaluation after three and six months postoperatively. Results: Our clinical results revealed that, all patients had uneventful wound healing except 4 cases in group I and one case in group II which had wound dehiscence and graft exposure at 1-week postoperatively. The radiographic results by CBCT scans showed a better new bone formation and good osseous union obliterating the oronasal defect.in group II than group I. There was a significant difference between bone density and bone resorption values in both groups at all intervals. Conclusion : Our results demonstrated that PRF sandwiching technique combined with a mixture of alloplastic bone graft and HyA could provide a favorable bony and soft tissue barriers for closure of recurrent oronasal fistula in alveolar cleft patients.

Aim: To evaluate the feasibility of using sternoclavicular graft (SCG) versus costochondral graft (CCG) for TMJ reconstruction in TMJ ankylosis in child. Patients and methods:A total of 20 patients having unilateral bony TMJ ankylosis underwent gap arthroplasty then reconstruction of TMJ with SCG (Group I) or CCG (Group II). Pre-operative and post-operative clinical and radiographic evaluation were done to assess maximum mouth opening, range of mandibular movements, ramus height, donor and recipient sites complications for 24 month follow up at least.Results: Statistical analysis shows that postoperative measurements of different mouth movements increased comparing preoperative measurements in both groups without any significant difference between groups. While postoperative complications occurrence were higher in Group II than group I in pleural tear, pain, overgrowth, and facial asymmetry aspects with high statistical significant difference for pleural tear complication (p < 0.01). In opposite side, group I showed higher occurrence for skin scare as compared to group II with statistical significant difference. Postoperative radiographic assessment presented that the most measurements of both groups were better than the preoperative values without any statistical significant difference between groups (p> 0.05). Conclusion :The present study concludes SCG is a versatile and simple alternative graft to the traditional CCG for TMJ reconstruction with minimal complications in children with TMJ ankylosis.

Objectives: Comparing osseodensification vs. ridge splitting techniques in dental implant placement regarding implant stability, insertion torque, bone width and density. Patients and Method: Twenty individuals with a narrow ridge width of 3-6 mm at crestal bone level were included in this study. They were divided into two groups: Group I Osseodensification technique, Group II Ridge splitting technique with bone expanders and sticky bone augmentation. Implant stability, insertion torque, surgical procedure duration, bone width, and density were all evaluated by CBCT. Results: Group (I) had showed higher statistically significant Insertion torque than group (II). While group (II) had showed statistically significant increase in mean ISQ reading after 6 months (p<0.001). Group (II) showed statistically significant higher surgical time than group (I). Group (II) showed a higher increase in bone gain than group (I). Group (I) had showed statistically significant increase in mean bone density postoperatively, after 3 and 6 months (p<0.001*). While group (II) had showed statistically significant increase in mean bone density postoperatively, after 3 and 6 months (p<0.001). Conclusion: Osseodensification technique had been shown to increase ridge width while maintaining primary implant stability and bone density around dental implants without sacrificing bone.

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