CRESTAL BONE LOSS IN PATIENTS WITH DIFFERENT SURFACE MODIFIED DENTAL IMPLANTS: INSIGHTS FROM COMPREHENSIVE REGISTRY DATA-BASED COHORT STUDY

Background:Several surface modifications have been performed on implant surfaces to improve
osseointegration. The clinical results of these implants over a long term, however, have not yet been
thoroughly assessed. Accordingly, the present registry data-based cohort study aims to examine the crestal
bone loss (CBL) associated with sandblasted acid-etched and anodized dental implants.
Materials and Methods : Case records of a total of 162 patients who underwent implant surgery (311 implants)
using three different i mplant systems implants with sandblasted acid-etched [Group 1: SLA ® (93 implants),
Group 2: SLActive ® (99 implants)] and anodized topographies [Group 3: TiUnite ® (119 implants)], followed
by conventional loading between January 2022-June 2023 were enrolled. Digital X-rays at baseline, 3 months
and 1-year intervals were collected from case records and crestal bone loss was measured. A one-way ANOVA
was conducted for statistical analysis, followed by Tukey’s HSD post hoc test for further comparisons.
Results: Implants in group 3 exhibited significantly higher CBL than those in groups 1 and 2 at 3 months and
1-year (p = 0.000). At 3 months and 1-year, the prevalence of CBL ≥2 mm was higher in group 3 implants
(1.7%, 10.6%) followed by group 1 (0%, 2.2%) and group 2 (0%,0%).
Conclusion: During a one-year follow-up period, anodized implants showed a higher incidence of CBL relative
to sandblasted acid-etched implants.