Shear bond strength of resin cement to an acid etched and a laser irradiated ceramic surface

Journal Article

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The journal of advanced prosthodontics

J.Adv.Prosthodont.

May

103

LR: 20130613; JID: 101521064; OID: NLM: PMC3675300; OTO: NOTNLM; 2012/10/02 [received]; 2013/02/14 [revised]; 2013/04/25 [accepted]; 2013/05/30 [epublish]; ppublish

Korea (South)

2005-7806; 2005-7806

PMID: 23755333

eng

Journal Article

10.4047/jap.2013.5.2.98 [doi]

Unknown(0)

23755333

PURPOSE: To evaluate the effects of hydrofluoric acid etching and Er,Cr:YSGG laser irradiation on the shear bond strength of resin cement to lithium disilicate ceramic. MATERIALS AND METHODS: Fifty-five ceramic blocks (5 mm x 5 mm x 2 mm) were fabricated and embedded in acrylic resin. Their surfaces were finished with 1000-grit silicon carbide paper. The blocks were assigned to five groups: 1) 9.5% hydrofluoric-acid etching for 60 s; 2-4), 1.5-, 2.5-, and 6-W Er,Cr:YSGG laser applications for 60 seconds, respectively; and 5) no treatment (control). One specimen from each group was examined using scanning electron microscopy. Ceramic primer (Rely X ceramic primer) and adhesive (Adper Single Bond) were applied to the ceramic surfaces, followed by resin cement to bond the composite cylinders, and light curing. Bonded specimens were stored in distilled water at 37 for 24 hours. Shear bond strengths were determined by a universal testing machine at 1 mm/min crosshead speed. Data were analyzed using Kruskal-Wallis and Mann-Whitney U-tests (alpha=0.05). RESULTS: Adhesion was significantly stronger in Group 2 (3.88 +/- 1.94 MPa) and Group 3 (3.65 +/- 1.87 MPa) than in Control group (1.95 +/- 1.06 MPa), in which bonding values were lowest (P<.01 no="" significant="" difference="" was="" observed="" between="" group="" mpa="" and="" control="" group.="" shear="" bond="" strength="" highest="" in="" p="" conclusion:="" er="" laser="" irradiation="" at="" w="" increased="" strengths="" ceramic="" resin="" cement="" compared="" with="" untreated="" surfaces.="" may="" not="" be="" an="" efficient="" surface="" treatment="" technique.="">

Kursoglu,P., Motro,P.F., Yurdaguven,H.

Department of Prosthodontics, Faculty of Dentistry, Yeditepe University, Istanbul, Turkey.

20130530

PMC3675300

http://vp9py7xf3h.search.serialssolutions.com/?charset=utf-8&pmid=23755333

2013