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Piezoelectric bone surgery for implant site preparation compared with conventional drilling techniques: A systematic review, meta-analysis and trial sequential analysis

Journal article
Authors C. Stacchi
F. Bassi
G. Troiano
A. Rapani
T. Lombardi
A. Jokstad
Lars Sennerby
G. Schierano
Published in European Journal of Oral Implantology
Volume 13
Issue 2
Pages 141-158
ISSN 1756-2406
Publication year 2020
Published at Institute of Clinical Sciences
Pages 141-158
Language en
Keywords implant site preparation, implant stability, piezosurgery, trial, sequential analysis, dental implants, ex-vivo, in-vivo, osseointegration, stability, insertion, piezosurgery, interface, density, split, Dentistry, Oral Surgery & Medicine
Subject categories Dentistry


Purpose: To evaluate whether the use of piezoelectric bone surgery (PBS) for implant site preparation reduces surgical time, improves implant stability, preserves marginal bone level and improves the survival rate of oral implants compared with conventional drilling techniques. Materials and methods: This meta-analysis followed the PRISMA (preferred reporting items for systematic review and meta-analysis) guidelines and was registered in the PROSPERO (international prospective register of systematic reviews) database (CRD42019142749). The PubMed, Embase, Scopus and Open Grey databases were screened for articles published from 1 January 1990 to 31 December 2018. The selection criteria included randomised controlled trials (RCTs) and case-control studies (CCTs) comparing the PBS with conventional rotary instruments for implant site preparation, and reporting any of the selected clinical outcomes (surgical time, implant stability, marginal bone variations and implant failure rate) for both groups. The risk of bias assessment was performed using the Cochrane Collaboration tool for RCTs and the NewcastleOttawa scale (NOS) for CCTs. A meta-analysis was performed, and the power of the metaanalytic findings was assessed by trial sequential analysis (TSA). Results: Eight RCTs and one CCT met the inclusion criteria and were included in the review. The meta-analysis and the TSA showed moderate evidence suggesting that the PBS prolongs surgery duration and improves secondary stability 12 weeks after implant placement compared with conventional drilling techniques. Insufficient data are available in literature to assess if the PBS reduces marginal bone loss and/or improves the implant survival rate compared with conventional drilling techniques. Conclusions: Adequately powered randomised clinical trials are needed to confirm the PBS positive effect on the secondary stability and to draw conclusions about the influence of PBS on marginal bone stability and implant survival.

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