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Shear Bond Strengths and Morphological Evaluation of Filled and Unfilled Adhesive Interfaces to Enamel and Dentine Publisher



Mortazavi V1 ; Fathi M2 ; Ataei E3 ; Khodaeian N4 ; Askari N5
Authors
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Authors Affiliations
  1. 1. Department of Operative Dentistry, School of Dentistry, Isfahan University of Medical Sciences, Isfahan 8174673461, Iran
  2. 2. Biomaterials Research Group, Department of Materials Engineering, Isfahan University of Technology, Isfahan 8415683111, Iran
  3. 3. Department of Operative Dentistry, School of Dentistry, Shahid Sadoughi University of Medical Sciences, Yazd 89195165, Iran
  4. 4. Department of Prosthodontics, School of Dentistry, Isfahan University of Medical Sciences, Isfahan 8174673461, Iran
  5. 5. Department of Prosthodontics, School of Dentistry, Shahid Sadoughi University of Medical Sciences, Yazd 89195165, Iran

Source: International Journal of Dentistry Published:2012


Abstract

In this laboratory study shear bond strengths of three filled and one unfilled adhesive systems to enamel and dentine were compared. Forty-eight extracted intact noncarious human mandibular molars were randomly assigned to two groups of 24 one for bonding to enamel and the other for bonding to dentine. Buccal and lingual surfaces of each tooth were randomly assigned for application of each one of filled (Prime & Bond NT (PBNT), Optibond Solo Plus (OBSP), and Clearfil SE Bond (CSEB)) and unfilled (Single Bond (SB)) adhesive systems (n=12). A universal resin composite was placed into the translucent plastic cylinders (3 mm in diameter and 2 mm in length) and seated against the enamel and dentine surfaces and polymerized for 40 seconds. Shear bond strength was determined using a universal testing machine, and the results were statistically analyzed using two-way ANOVA, one-way ANOVA, t-test, and Tukey HSD post hoc test with a 5 level of significance.There were no statistically significant differences in bond strength between the adhesive systems in enamel, but CSEB and SB exhibited significantly higher and lower bond strength to dentine, respectively, than the other tested adhesive systems while there were no statistically significant differences between PBNT and OBSP. © 2012 Vajihesadat Mortazavi et al.
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