Direct versus indirect inlay/onlay composite restorations in posterior teeth. A systematic review and meta-analysis.

Angeletaki, Flora; Gkogkos, Andreas; Papazoglou, Efstratios; Kloukos, Dimitrios (2016). Direct versus indirect inlay/onlay composite restorations in posterior teeth. A systematic review and meta-analysis. Journal of dentistry, 53, pp. 12-21. Elsevier Science 10.1016/j.jdent.2016.07.011

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OBJECTIVE To evaluate the long-term clinical performance of direct versus indirect composite inlays/onlays in posterior teeth. DATA Screening for inclusion eligibility, quality assessment of studies and data extraction was performed independently by two authors. SOURCES The electronic databases MEDLINE, EMBASE, Cochrane Oral Health Group's Trials Register and CENTRAL were searched (14.12.2015), with no restriction to publication date or language. We included only randomised controlled trials (RCTs) and evaluated them according to Cochrane risk of bias tool. The main outcome assessed was the restoration failure, determined by several clinical parameters. STUDY SELECTION Two studies concerning direct and indirect inlays (82 patients with 248 restorations) and one study for onlays (157 patients with 176 restorations) satisfied the inclusion criteria. Two trials, one of unclear and one of high risk of bias, could be mathematically combined. The meta-analysis indicated no statistically significant difference in the risk failure between direct and indirect inlays, after 5 years (RR: 1.54; 95% Cl: 0.42, 5.58; p=0.52) or 11 years of function (RR: 0.95; 95% Cl: 0.34, 2.63; p=0.92). Only one parameter, the marginal discoloration, slightly favored direct inlays after 11 years (RR: 0.41; 95% Cl: 0.17, 0.96; p=0.04). Only one study dealt with onlays; an overall 5-year survival of 87% (95% CI: 81-93%) was reported. CONCLUSION The difference of the two techniques did not reach statistical significance in order to recommend one technique over the other. The scarcity of primary studies support the need for further well-designed long-term studies in order to reach firm conclusions about both techniques. CLINICAL SIGNIFICANCE Resin composite materials, placed directly or indirectly, exhibit a promising long-term clinical performance when rehabilitation of posterior teeth is needed. Although many years in clinical practice, the selection of the best treatment protocol still remains subjective. The available studies, and their synthesis, cannot provide reliable evidence in this field.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Orthodontics

UniBE Contributor:

Kloukos, Dimitrios

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0300-5712

Publisher:

Elsevier Science

Language:

English

Submitter:

Eveline Carmen Schuler

Date Deposited:

08 May 2017 09:44

Last Modified:

05 Sep 2019 12:22

Publisher DOI:

10.1016/j.jdent.2016.07.011

PubMed ID:

27452342

Uncontrolled Keywords:

Direct, Indirect, Inlays, Onlays, Resin Composite, Tooth restoration

BORIS DOI:

10.7892/boris.94034

URI:

https://boris.unibe.ch/id/eprint/94034

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