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Purpose  The study aimed to compare clinical and radiographic parameters of peri-implant site of laser-microgrooved implants with either laser-microgrooved or regular machined prosthetic abutment post 3 years of early loading.Method  Twenty edentulous sites of systemically and periodontally healthy individuals were allocated into two groups in this prospective, two-armed, randomized double-blinded clinical trial in 1:1 ratio, wherein each site received laser-microgrooved implants with either laser-microgrooved or machined prosthetic abutments. Outcome measures included full-mouth plaque (FMPS%) and bleeding score (FMBS%), site-specific plaque (SPS%) and bleeding score (SBS%), peri-implant sulcus depth (PISD mm), and mean crestal bone loss (MCBL mm) evaluated at baseline (6 weeks), 1 and 3 years post-early loading. Mean and standard deviation of all parameters were estimated, between groups and at different time points using independent and paired  t -test, respectively, Normality was checked using Kolmogorov–Smirnov test and Shapiro–Wilk test,  P  value ≤ 0.05 was considered as statistically significant.    Results  Three-year follow-up of test group showed statistically significant reduction in SPS, SBS, PISD ( P  value ≤ 0.001). The MCBL reduced from 1.93 mm to 0.61 mm ( P  value ≤ 0.001); in other words, a bone gain of 0.15 mm was obtained in the test group.    Conclusion  Within the limitations of the present study, laser-microgrooved implants loaded with laser-microgrooved prosthetic abutments showed superior results clinically and radiographically when compared to loading with machined abutments.

international journal of implant dentistry

The influence of laser-microgrooved implant and abutment surfaces on mean crestal bone levels and peri-implant soft tissue healing: a 3-year longitudinal randomized controlled clinical trial