Dentin adhesives application deviations: Effects on permeability and nanoleakage

Alexandre Cavalheiro; Joana Cruz; Bernardo Sousa; Ana Silva; Catarina Coito; Manuela Lopes; Marcos Vargas

doi:10.4012/dmj.2020-404

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Dentin adhesives application deviations: Effects on permeability and nanoleakage

Journal article

Open access

Peer reviewed

Dentin adhesives application deviations: Effects on permeability and nanoleakage

Alexandre Cavalheiro, Joana Cruz, Bernardo Sousa, Ana Silva, Catarina Coito, Manuela Lopes and Marcos Vargas

Dental materials journal, Vol.40(5), pp.1160-1168

10/01/2021

DOI: 10.4012/dmj.2020-404

PMID: 34024885

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https://doi.org/10.4012/dmj.2020-404View

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Abstract

The purpose was to evaluate the effect that deviations from the recommended protocol of a two-step etch-and-rinse adhesive system has on permeability and nanoleakage. One hundred and twenty dentin disks were treated with a two-step etch-and-rinse adhesive system, according to the manufacturer's instructions, or using five simulated deviations from the recommended protocol: applying potassium oxalate, reducing the application time of the adhesive, avoiding adhesive drying, aggressively drying the adhesive, and double application of adhesive. Kruskal-Wallis and Tukey's post hoc comparisons were used to evaluate the permeability reduction (alpha=0.05). Twelve additional dentin disks were prepared for transmission electron microscope (TEM) analysis of nanoleakage. Aggressive drying, adding additional layers of adhesive or using oxalate reduced dentin permeability and yielded a better infiltration of the hybrid layer, whereas reducing the application time or less drying the adhesive did not to reduce dentin permeability, caused extensive nanoleakage, showing immediate compromised dentin sealing.

Materials Science

Technology

Dentistry, Oral Surgery & Medicine

Life Sciences & Biomedicine

Materials Science, Biomaterials

Science & Technology

Details

Title: Subtitle: Dentin adhesives application deviations: Effects on permeability and nanoleakage
Creators: Alexandre Cavalheiro - University of Lisbon
Joana Cruz - University of Lisbon
Bernardo Sousa - University of Lisbon
Ana Silva - University of Lisbon
Catarina Coito - University of Lisbon
Manuela Lopes - University of Lisbon
Marcos Vargas - University of Iowa
Resource Type: Journal article
Publication Details: Dental materials journal, Vol.40(5), pp.1160-1168
DOI: 10.4012/dmj.2020-404
PMID: 34024885
NLM abbreviation: Dent Mater J
ISSN: 0287-4547
eISSN: 1881-1361
Publisher: Japanese Soc Dental Materials Devices
Number of pages: 9
Language: English
Date published: 10/01/2021
Academic Unit: Family Dentistry
Record Identifier: 9984367741702771

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