Surgical procedures for soft tissue augmentation at implant sites. A systematic review and meta‐analysis of randomized controlled trials
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Fecha
2019
Título de la revista
Publicado en
Clinical implant dentistry and related research, 1523-0899, Vol. 21, Nro. 6, 2019, p. 1262-1270
Publicado por
Wiley-Blackwell
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Resumen
Descripción
Abstract
Background
Different procedures were proposed to augment soft tissue around dental implants.
Objective
Aims of this Systematic Review (SR) were to evaluate (a) clinical benefit of soft tissue augmentation at implant sites (b) which is the best surgical procedure to augment soft tissue.
Materials and Methods
Manual/electronic searches were performed to identify randomized controlled trials (RCTs). Change in keratinized tissue thickness (STT) and height (KT) were primary outcomes. Random effects meta‐analyses were performed where suitable and expressed as weighted mean differences (MD) with their associated 95% confidence intervals (CI).
Results
Fourteen RCTs accounting for 475 patients and 538 implants were included. Only five studies were judged at low risk of bias. In the single studies, soft augmentation lead to higher STT and KT compared to no augmentation. Considering primary outcomes, connective tissue graft (CTG) was more effective than xenogeneic collagen matrix (XCM) to improve STT (MD: −0.30 mm; 95% CI −0.43; −0.17; P < .00001) in the meta‐analysis for different techniques for augmentation.
Conclusions
Even if further studies at low risk of bias are needed, soft tissue augmentation techniques improved quantity and quality of peri‐implant soft tissue. Among the augmentation procedures, CTG was associated to higher STT change compared to XCM.
Palabras clave
Keywords
Implant, Soft tissue grafting, Systematic review
Temáticas
Tejidos
Colágeno
Periimplantitis
Colágeno
Periimplantitis