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.

Objectives: The use of a keyhole plate vs two miniplates in the treatment of mandibular subcondylar fractures. Materials and methods:Twenty patients were randomized into two equal groups. Ten patients with subcondylar fractures were treated with two Yang's keyhole plates in Group I. Ten patients with subcondylar fractures were treated with two conventional miniplates in Group II. Maximum mouth opening (MMO), Protrusive excursive movement, Lateral excursive movement, and Time for reduction and fixation were all used to evaluate patients clinically vertical height of ramus, and antero-posterior condylar angulation are all measured radiographically. Results: There was a statistically non-significant difference between the study and control groups at all intervals regarding MMO, Protrusive excursive movement, Lateral excursive movement, vertical height of the ramus, antero-posterior condylar angulation, but was significant at time for reduction and fixation. Conclusion: reducing a mandibular condylar fracture using a YK-plate, the results were similar and the operating time was quicker than when utilizing a traditional mini plate fixation.