Histomorphometric analysis of bone density in relation to tactile sense of the surgeon during dental implant placement

A correct diagnosis and optimal treatment planing is essential for success in implant dentistry. Proper diagnosis of bone quality is an important part of the diagnostic procedure. The purpose of this study was to correlate the tactile sense of the surgeon in assessment of bone density to the histomorphometric analysis of bone quality. In this study 56 bone samples from 33 patients were harvested from implant sites with trephine drills. The samples were analyzed with Image J soft ware. In the samples, BV/TV, superficial cortical plate thickness,Number and thickness of haversian channels in cortical bone and number, thickness and distance of trabecules in cancellous bone were assessed. The clinical hardness of bone during drilling was evaluated by surgeon according to Misch. GEE analysis with exchangeable correlation structure and linear model was used to evaluate the relationship between tactile sense of the surgeon and histomorphometric parameters and all analysis was adjusted for two confounding variables: gender and location. There were 51.79% implants in bone type D2 and 48.21% in D3. Bone classification according to Misch was significantly correlated to distance of trabecules in cancellous bone (P value=0.05), and shown marginally significant correlation with mean superficial cortical bone thickness (P value =0.07) and number of haversian channels (P value =0.005) in cortical bone. It is concluded that tactile sense of the surgeon can exhibit the histologic properties of the bone and we are able to estimate the healing prognosis of the bone in implant placement.

کلیدواژه ها:

Tactile sense ، Histomorphomtry ، Bone density ، Dental implants.