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Shear Bond Strength of Resin Composite to Rotary and ErYAG Laser-Prepared Enamel
, Shatha A. Salih, Muthenna Sh. Rajab, Firas H. Mesmari, Omer I. Abdulaziz, Danyal Z. Ahmed
Published in Al Manhal
2013
Volume: 8
   
Issue: 4
Pages: 26 - 29
Abstract

Objective: The aim of this study was to compare enamel shear bond strength to resin composite following preparation with a carbide bur, fine diamond bur, or erbium doped, yttrium–aluminium–garnet (Er:YAG) laser.

Materials & Methods: Forty-eight human anterior teeth, randomly assigned to each preparation group, were studied. Each tooth was mounted in self-curing acrylic resin with the desirable flat facial surface exposed and was randomly assigned to 3 groups according to surface preparation: Er:YAG laser irradiation, carbide bur, or fine-grit diamond bur. A polypropylene cylinder was fixed to the prepared surface, which was demarcated for the area to be bonded with the single bonding system. Restorative composite was then incrementallyinserted into the tubing lumens. The teeth were shear tested to failure at a crosshead speed of 1.0mm/minute. One-way ANOVA and the Tukey test were used for analysis.

Results: The mean bond strength values were as follows: fine diamond bur, 23.88MPa; carbide bur, 13.28 MPa; and Er:YAG laser, 12.61 MPa.

About the journal
JournalSmile Dental Journal
PublisherAl Manhal
Open AccessYes
Concepts (6)
  •  related image
    Shear bond strength
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    Enamel
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    Diamond bur
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    Carbide bur
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    Er:yag laser
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    Resin composite