Effect of erosive challenges on deciduous teeth undergoing restorative procedures with different adhesive protocols - an in vitro study.

Assunção, Cristiane Meira; Goulart, Marcelo; Essvein, Tattiana Enrich; Santos, Nicole Marchioro Dos; Erhardt, Maria Carolina Guilherme; Lussi, Adrian; De Almeida Rodrigues, Jonas (2018). Effect of erosive challenges on deciduous teeth undergoing restorative procedures with different adhesive protocols - an in vitro study. Journal of applied oral science, 26, e20170053. University of São Paulo, Faculdade de Odontologia de Bauru 10.1590/1678-7757-2017-0053

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To evaluate the effect of erosive challenges on the tooth- restoration interface of deciduous teeth treated with different adhesive protocols. Deciduous molars were cut mesiodistally, then embedded, abraded and polished (n=80). Samples were randomly divided according to the adhesive system used into: G1 (Adper Single Bond2®, etch-and-rinse), G2 (Universal Single Bond®, self-etching), G3 (OptibondFL®, etch-and-rinse with Fluoride) and G4 (BondForce®, self-etching with Fluoride). After standardized cavity preparation (2 mm diameter x 2 mm depth), adhesive systems were applied and samples were restored (composite resin Z350®). Half of the samples were exposed to erosive/abrasive cycles (n = 10, each adhesive group), and the other half (control group; n = 10) remained immersed in artificial saliva. For microleakage analysis, samples were submersed in methylene blue and analyzed at 40x magnifications. Cross-sectional microhardness (CSMH) was carried out (50 g/5 s) at 25 μm, 50 μm, and 100 μm from the eroded surface and at 25 μm, 75 μm, and 125 μm from the enamel bond interface. Regarding microleakage, 7.5% of the samples showed no dye infiltration, 30% showed dye infiltration only at the enamel interface, and 62.5% showed dye infiltration through the dentin-enamel junction, with no difference between groups (p≥0.05). No significant difference was observed in CSMH at different depths (two-way ANOVA, p≥0.05). We did not observe significant changes in microleakage or CSMH after erosive/abrasive challenges in deciduous teeth treated with different adhesive protocols (etch-and-rinse and self-etching adhesives, with and without fluoride).

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Preventive, Restorative and Pediatric Dentistry

UniBE Contributor:

Lussi, Adrian and De Almeida Rodrigues, Jonas

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1678-7757

Publisher:

University of São Paulo, Faculdade de Odontologia de Bauru

Language:

English

Submitter:

Hendrik Meyer-Lückel

Date Deposited:

12 Apr 2019 10:43

Last Modified:

23 Oct 2019 08:08

Publisher DOI:

10.1590/1678-7757-2017-0053

PubMed ID:

29364339

BORIS DOI:

10.7892/boris.125277

URI:

https://boris.unibe.ch/id/eprint/125277

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