Article (Scientific journals)
Effect of acid etching duration on tensile bond strength of composite resin bonded to erbium:yttrium-aluminium-garnet laser-prepared dentine. Preliminary study.
Chousterman, M.; Heysselaer, Daniel; Dridi, S. M. et al.
2010In Lasers in Medical Science, 25 (6), p. 855-9
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Keywords :
Acid Etching, Dental/methods; Composite Resins; Dental Bonding/methods; Dental Etching/methods; Dental Stress Analysis; Dentin/physiology/radiation effects; Humans; In Vitro Techniques; Lasers, Solid-State/therapeutic use; Low-Level Light Therapy/methods; Tensile Strength; Time Factors
Abstract :
[en] The purpose of this study was to compare the tensile bond strength of composite resin bonded to erbium:yttrium-aluminium-garnet (Er:YAG) laser-prepared dentine after different durations of acid etching. The occlusal third of 68 human third molars was removed in order to expose the dentine surface. The teeth were randomly divided into five groups: group B (control group), prepared with bur and total etch system with 15 s acid etching [37% orthophosphoric acid (H(3)PO(4))]; group L15, laser photo-ablated dentine (200 mJ) (laser irradiation conditions: pulse duration 100 micros, air-water spray, fluence 31.45 J/ cm(2), 10 Hz, non-contact hand pieces, beam spot size 0.9 mm, irradiation speed 3 mm/s, and total irradiation time 2 x 40 s); group L30, laser prepared, laser conditioned and 30 s acid etching; group L60, laser prepared, laser conditioned and 60 s acid etching; group L90, laser prepared, laser conditioned and 90 s acid etching. A plot of composite resin was bonded onto each exposed dentine and then tested for tensile bond strength. The values obtained were statistically analysed by analysis of variance (ANOVA) coupled with the Tukey-Kramer test at the 95% level. A 90 s acid etching before bonding showed the best bonding value (P < 0.05) when compared with all the other groups including the control group. There is no significance difference between other groups, nor within each group and the control group. There was a significant increase in tensile bond strength of the samples acid etched for 90 s.
Disciplines :
Anesthesia & intensive care
Author, co-author :
Chousterman, M.
Heysselaer, Daniel
Dridi, S. M.
Bayet, François
Misset, Benoît  ;  Centre Hospitalier Universitaire de Liège - CHU > Service de Soins Intensifs
Lamard, Laurent
Peremans, André
Nyssen-Behets, Catherine
Namour, Samir  
Language :
English
Title :
Effect of acid etching duration on tensile bond strength of composite resin bonded to erbium:yttrium-aluminium-garnet laser-prepared dentine. Preliminary study.
Publication date :
2010
Journal title :
Lasers in Medical Science
ISSN :
0268-8921
eISSN :
1435-604X
Publisher :
Springer, Germany
Volume :
25
Issue :
6
Pages :
855-9
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 21 February 2020

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