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Etching time and bonding of adhesive systems to dentin of primary teeth: A systematic review and meta‐analysis
Author(s) -
Gindri Larissa D'Olanda,
Fröhlich Tatiana Tambara,
Rosso Carolina Ramos,
Rocha Rachel de Oliveira
Publication year - 2021
Publication title -
international journal of paediatric dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.183
H-Index - 62
eISSN - 1365-263X
pISSN - 0960-7439
DOI - 10.1111/ipd.12711
Subject(s) - medicine , dentin , dentistry , meta analysis , adhesive , dentin bonding agents , orthodontics , composite material , bond strength , pathology , materials science , layer (electronics)
Background Due to the chemical and morphological differences between primary vs. permanent teeth, the time reduction of the acid etching or acidic primer can result in higher values of bond strength. Aim To assess through a systematic review and meta‐analysis the influence of the reducing etching (acid etching or acidic primer) time on the bond strength of adhesive systems to primary dentin. Design A systematic search was carried out in 3 databases: PubMed, Web of Science and Scopus. Studies that evaluated the effect of reducing the etching time on the bond strength of adhesive systems to primary dentin were included. Meta‐analyses were performed using a random‐effects model, with subgroups for etch‐and‐rinse and self‐etching adhesives, with a significance level of P < .05. The risk of bias and heterogeneity between studies (Cochrane and I2 tests) were assessed. Results Eight studies were included in the systematic review and seven in the meta‐analyses. The shortening etching time did not influence the immediate dentin bond strength for etch‐and‐rinse (Z = 0.07, P = .95) and self‐etching adhesives (Z = 0.41, P = .69). After ageing, however, the shorting etching time improved the bond strength for etch‐and‐rinse adhesives (Z = 2.01, P = .04). All studies presented high bias risk. Conclusions Reducing the acid‐etching time to primary dentin improves the long‐term bond strength to this substrate.