Influence of Er,Cr : YSGG laser treatment on the microtensile bond strength of adhesives to dentin


Autoria(s): CARDOSO, Marcio Vivan; COUTINHO, Eduardo; ERMIS, R. Banu; POITEVIN, Andre; LANDUYT, Kirsten Van; MUNCK, Jan De; CARVALHO, Rubens C. R.; LAMBRECHTS, Paul; MEERBEEK, Bart Van
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

19/10/2012

19/10/2012

2008

Resumo

Purpose: In light of the concept of minimally invasive dentistry, erbium lasers have been considered as an alternative technique to the use of diamond burs for cavity preparation. The purpose of this study was to assess the bonding effectiveness of adhesives to Er,Cr:YSGG laser-irradiated dentin using irradiation settings specific for cavity preparation. Materials and Methods: Fifty-four midcoronal dentin surfaces, obtained from sound human molars, were irradiated with an Er,Cr:YSGG laser or prepared with a diamond bur using a high-speed turbine. One etch-and-rinse (Optibond FL/Kerr) and three self-etching adhesives (Adper Prompt L-Pop/3M ESPE, Clearfil SE Bond/Kuraray, and Clearfil S-3 Bond/Kuraray) were used to bond the composite to dentin. The microtensile bond strength (mu TBS) was determined after 24 h of storage in water at 37 degrees C. The Kruskal-Wallis test was used to determine pairwise statistical differences (p < 0.05). Prepared dentin surfaces, adhesive interfaces, and failure patterns were analyzed using a stereo microscope and Field-emission gun Scanning Electron Microscopy (Feg-SEM). Results: Significantly lower mu TBS was observed to laser-irradiated than to bur-cut dentin (p < 0.05), irrespective of the adhesive employed. Feg-SEM photomicrographs of lased dentin revealed an imbricate patterned substrate and the presence of microcracks at the dentin surface. Conclusion: Morphological alterations produced by Er,Cr:YSGG laser-irradiation adversely influence the bonding effectiveness of adhesives to dentin. Keywords: dentin, adhesion, adhesives, laser, ErCr:YSGG.

Identificador

JOURNAL OF ADHESIVE DENTISTRY, v.10, n.1, p.25-33, 2008

1461-5185

http://producao.usp.br/handle/BDPI/26858

http://apps.isiknowledge.com/InboundService.do?Func=Frame&product=WOS&action=retrieve&SrcApp=EndNote&UT=000253310900004&Init=Yes&SrcAuth=ResearchSoft&mode=FullRecord

Idioma(s)

eng

Publicador

QUINTESSENCE PUBLISHING CO INC

Relação

Journal of Adhesive Dentistry

Direitos

restrictedAccess

Copyright QUINTESSENCE PUBLISHING CO INC

Palavras-Chave #dentin #adhesion #adhesives #laser #Er,Cr : YSGG #SELF-ETCHING SYSTEMS #BUR-CUT ENAMEL #ER-YAG #CAVITY PREPARATION #SURFACE-TREATMENT #SMEAR LAYERS #IRRADIATION #COMPOSITE #ABLATION #MICROLEAKAGE #Dentistry, Oral Surgery & Medicine
Tipo

article

original article

publishedVersion