Marginal bone loss around three different implant systems: radiographic evaluation after 1 year.

摘要: This study was designed to radiographically evaluate the effect of surface macro-and microstructures within coronal portion external hex implant at marginal bone change after loading. The fifty-four patients included in were randomly assigned treatment groups with rough-surface implants (TiUnite, n = 45), a hybrid smooth and rough (Restore, 45) or microthreads (Hexplant, 45). Clinical radiographic examinations conducted time loading (baseline) 1-year post-loading. A three-level mixed-effect ancova used test significance mean three from baseline follow-up. At 1-year, significant differences noted loss recorded for (P < 0.0001). microthread had crestal 0.42 +/- 0.27 mm; implants, 0.81 0.89 0.41 mm. Within limitations this study, part maintained level against functional better than without these two features.