Impact of Level of Crestal Placement on Marginal Bone Loss: A Retrospective Institutional Study

A dental implant is an alloplastic material that is used to replace the tooth root. There is frequently marginal bone loss after implant placement at two months and mainly after loading. A number of factors are responsible for bone loss. One is the level of implant placement. Hence, this study aimed to evaluate the impact of placement level on marginal bone loss. A retrospective study was done in which 149 patients who had undergone 172 single-implant placements from September 1, 2019, to March 1, 2020, were included. Data from 86,000 patient records from June 2019 to March 2020 were reviewed and analyzed. The data were collected by recalling the patient and reviewing. Statistical analysis was performed using unpaired t-testing to assess the difference between bone loss in implants placed at different crestal levels. Marginal bone loss in group 1 was 2.23 ± 0.714 mm and in group 2 was 2 ± 0.00 mm. There was no statistically significant difference in bone loss between males and females. However, when placement level and bone loss were correlated, a statistically significant difference was seen.