Autogenous tooth graft with platelet rich fibrin versus autogenous tooth graft only around immediate dental implant

Objective: This trial was conducted to compare between autogenous fresh tooth graft with/without platelet rich fibrin around immediate dental implant. Patients and methods: This controlled randomized clinical trial was carried out on 12 patients over the age of 18 who required dental extractions of single- or multi-rooted teeth, who were also delayed candidates for osseointegrated implants. They were equally divided into two groups; group (1): Autogenous fresh tooth graft around immediate dental implant placement with platelet rich fibrin and group (2): Autogenous fresh tooth graft around immediate dental implant placement without platelet rich fibrin. Results: The mean value of horizontal bone loss in group (1) and group (2) at 6 months 0.077 (0.065 -0.130) and 0.595 (0.450 - 0.690) respectively with statistical significant differences between two groups. While vertical bone loss in group(1) and group(2) at 6 months (0.510(0.480 -0.530) and (1.490(1.400  - 1.640) respectively with statistical significant differences between two groups. The mean value of  implant stability quotient for group (2) at 3 months was 70.50 ± 3.56 ISQ, and increased to 77.67 ± 5.61 ISQ at 6 months, which was statistically significant

Assessment of narrow alveolar ridge expansion by ossiodensification vs. ridge splitting technique for dental implant placement: Clinical and radiographic study

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

Yang’s keyhole plate versus conventional plate for treatment of mandibular sub-condylar fractures: Clinical and radiographic evaluation

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