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.

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Objectives: This study was conducted to assess and compare the effect of autogenous bone graft versus mineralized plasmatic matrix (MPM) and versus the Nano hydroxyapatite bone graft as bone regenerative materials during immediate implant placement. Material and Methods:A total of 14 patients with 18 implants have been included in this study, patients were divided into 3 groups. Group I(control group) received autogenous bone graft. Group II (study group A) received Mineralized Plasmatic Matrix (MPM), and group III (study group B) received Nano hydroxyapatite as bone regenerative materials for immediate implant placement. The treatment outcome was evaluated clinically and radiographically at 3 and 6 months of implant placement. Implants stability was measured using Osstell radiofrequency device at 3 and 6 months postoperatively. Also bone density were measured radiographically at 2 weeks and at 3 and 6 months postoperatively and statistically analysed.Results: Statistical analysis of bone density measurements between the three groups showed significant difference (P ≤ 0.05) between the control autogenous bone group and the two other groups (MPM &Nano bone) at all time intervals. Comparison between the test groups revealed non-significant difference (P ≤ 0.05) between (MPM & Nano bone) at two weeks interval. While at three & six months postoperatively there was a significant difference (P ≤ 0.05 between the two groups. Regarding implant stability comparison between the three groups , there was no statistical significant difference between them (P ≤ 0.05) at three and six months post operatively. Conclusion:The autogenous bone graft remains the gold standard for grafting materials but the use of MPM and Nano hydroxyapatite grafting materials can also give successful results regarding implant stability and bone density.

Aim of the study: Evaluation of the inferior alveolar nerve (IAN) neurosensory function, postoperative pain and edema following the placement of an implant with inferior alveolar nerve lateralization using piezo-surgery versus conventional rotary instruments.Materials and methods: Twenty four partially edentulous patients were selected for this study. Twelve patients underwent inferior alveolar nerve lateralization for Implants placement using Piezosurgery device (Group A), while the other twelve patients underwent inferior alveolar nerve lateralization for implant placement using conventional rotary surgical bur (Group B). Operation duration, postoperative pain, edema, and patient satisfaction were primary assessed and compared between the two groups at 2, 5 and 7 days postoperatively, also inferior alveolar nerve affection as a secondary outcome was assessed subjectively and objectively and compared between the two groups throughout the follow up intervals occurred at 2, 8 & 24 weeks postoperatively.Results: There was a statistical significant difference in all of the primary and secondary assessments between the two groups in favor of group A at all of the follow up intervals, except at the operation duration assessment where piezosurgey (Group A) had statistically significant higher operation duration than group B. Conclusion:The inferior alveolar nerve lateralization (IANL) technique using conventional surgical burs has a higher initial rate of sensory dysfunction, postoperative pain and edema than with using Piezosurgery. The somatosensory evoked potential method is considered more informative, reliable and diagnostic parameter than other subjective and conventional clinical methods.