STUDY OBJECTIVES AND METHODS
The purpose of this study was to characterize the peri -implant soft tissues (PIST) around experimental abutments made of titanium (Ti), dental resin (Re), and polyetheretherketone (PEEK). Thirty bone-level implants were placed, each receiving an experimental transmucosal healing abutment made of one of the three materials. After an 8 -week healing period, the abutments and surrounding tissues were harvested and prepared for histological and histomorphometric analyses. Dimensions of sulcus depth, epithelial and connective tissue adhesion were measured. In addition, the abutment surface characteristics, levels oinflammation, plaque accumulation, and peri -implant bone level changes were evalaluated.
RESULTS
- The dimensions of the different components of the PIST were comparable across the three experimental groups.
- The mean overall dimensions of the PIST were 2.68 ± 0.51 mm for Ti, 2.66 ± 0.47 mm for Re, and 2.32 ± 0.55 mmMean sulcus depth was 0.71 ± 0.69 mm for Ti, 0.74 ± 0.50 mm for Re, and 0.68 ± 0.63 mm for PEEK.
- Mean junctional epithelium was 1.82 ± 0.67 mm for Ti, 1.56 ± 0.47 mm for Re, and 1.53 ± 0.40 mm for PEEK.
- Mean harvested connective tissue (until abutment platform) was 0.30 ± 0.29 mm for Ti, 0.36 ± 0.38 mm for Re, a± 0.10 mm for PEEK. However, the resin group exhibited significantly more supramucosal biofilm adhesion (p+0,026).
CONCLUSIONS
The PIST around abutments made of PEEK, resin, or titanium tend to develop in a similar pattern. However, longer obserperiods are required to evaluate the long -term effects. Adapted from Manon Borieet al., Clin Implant Dent Relat Res. 2025 Oct;27(5):e70083 , for more info about this publication, click HERE.
This review is part of the Straumann "Scientific Highlights Newsletter 6/25".
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