Titanium abutment surface modifications and peri-implant tissue behavior: a systematic review and meta-analysis.

Canullo, Luigi; Menini, Maria; Santori, Gregorio; Rakic, Mia; Sculean, Anton; Pesce, Paolo (2020). Titanium abutment surface modifications and peri-implant tissue behavior: a systematic review and meta-analysis. Clinical oral investigations, 24(3), pp. 1113-1124. Springer-Verlag 10.1007/s00784-020-03210-x

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OBJECTIVES

To evaluate the effect of various titanium abutment modifications on the behaviour of peri-implant soft tissue healing, inflammation and maintenance.

MATERIAL AND METHODS

An electronic database research until 30 April 2019 was performed. A meta-analysis (MA) for each outcome parameter was performed by using the random-effects models with the DerSimonian-Laird estimator.

RESULTS

Ten studies were included in the present review. Four studies with a long follow-up (5-6 years) reported the outcomes in a heterogeneous way and were suitable for MA. Six studies (4 RCT, 2 CCT) including 118 patients and 182 implants dealing with a modified healing abutment surface and short follow-up were selected for MA. The MA for PI and BoP as outcome showed no significant differences between surfaces (PI: P = 0.091; BoP: P = 0.099). The MA for PD as outcome showed no significant differences between surfaces (P = 0.488). No statistical significance was found by evaluating each mixed-effects model for potential moderators (type of study, study design, number of implants, follow-up length). The other four studies with a longer follow-up (5-6 years) reported contradictory results depending on the surface treatment investigated.

CONCLUSIONS

Within their limits, the present findings suggest that peri-implant soft tissue may not be affected by the surface treatment of titanium abutments on the short term. Contrasting results are reported in longer follow-up periods depending on the technique used to modify the abutment.

CLINICAL RELEVANCE

Clinicians should carefully evaluate the use of a modified titanium surface in their practice. Even if no differences in terms of inflammation are present at short term, these findings need to be validated in long-term studies.

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6 Citations in Scopus

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