CORRELATION BETWEEN TWO IMPLANT STABILITY MEASUREMENT TOOLS AND MARGINAL BONE REMODELING OF IMMEDIATELY LOADED IMPLANT USED IN TWO DIFFERENT BONE QUALITIES

Problem statement: Dynamic remodeling occurs at bone-implant interface during osseintegration has represented the development of non invasive but relatively accurate clinical tools to assess implant stability and their possibility to load on. So, this study was directed to evaluate correlation between Periotest and Ostell as an implant stability measuring tools and the marginal bone level changes of immediately loaded implant used in two different bone qualities.
Patients and Methods: Fourteen patients received sixteen implants forming a common pool were divided into two equal harmoniously distributed groups of single missing tooth presented within either posterior maxilla or mandible. All patients within both groups received crown that was fabricated and temporarily seated within occlusion for 6 months. All patients included in this study were evaluated clinically for measuring implant stability using both of periotest and Ostell and radiographically for assessment of marginal bone level changes at 3 and 6 months.
Results: In both groups, there was statistical significant difference when comparing the (MBL) values obtained at 3 months with that recorded at 6 months either within posterior maxilla or mandible (P=0.015- 0.005 respectively). Regarding to PTVs and ISQ values, a statistical difference was recorded between both groups at the different times of follow up either at 3 or 6 months respectively (P= 0.000). In 2nd group, a positive significant correlation was revealed between PTVs and marginal bone level (MBL) recorded after 3 months (P=0.036).
Conclusion: Posterior mandibular bone revealed an early positive significant correlation between PTVs and ISQ in comparison with posterior maxilla. Additionally, an early positive significant correlation has been established between PTVs and MBL in maxilla.