Mithra N Hegde1, Priyadarshini Hegde, Shibani K Shetty. 1. Department of Conservative Dentistry and Endodontics, A. B. Shetty Memorial Institute of Dental Sciences, Deralakatte, Mangalore, Karnataka, India.
Abstract
BACKGROUND AND OBJECTIVES: To investigate whether salivary contamination during various stages of the bonding procedures of Xeno III and Clearfil SE Bond influences shear bond strength. MATERIALS AND METHODS: THE OCCLUSAL SURFACES OF THIRTY SIX MAXILLARY PREMOLAR TEETH WERE GROUND AND DIVIDED INTO TWO GROUPS CONTAINING EIGHTEEN SPECIMENS EACH, WHICH WAS SUBDIVIDED INTO THREE SUB GROUPS: Group I - Xeno III, Group II - Clearfil SE Bond, Subgroup A - Uncontaminated (control), Subgroup B - Contaminated with saliva before application and light curing, Subgroup C - Contaminated with saliva after light curing. Composite resin Filtek Z350 was packed using Teflon mold cured and subjected to shear bond strength analysis using universal Instron machine. RESULTS: Statistical analysis was made using One-way ANOVA and Tukeys HSD test. Clearfil SE Bond showed very high statistically significant reduction in the bond strength, when salivary contamination took place after light curing; whereas, Xeno III showed very high statistically significant reduction when salivary contamination took place before application and light curing. CONCLUSION: Clearfil SE Bond showed more tolerance to salivary contamination of dentin and higher shear bond strength value, when compared to Xeno III.
BACKGROUND AND OBJECTIVES: To investigate whether salivary contamination during various stages of the bonding procedures of Xeno III and Clearfil SE Bond influences shear bond strength. MATERIALS AND METHODS: THE OCCLUSAL SURFACES OF THIRTY SIX MAXILLARY PREMOLAR TEETH WERE GROUND AND DIVIDED INTO TWO GROUPS CONTAINING EIGHTEEN SPECIMENS EACH, WHICH WAS SUBDIVIDED INTO THREE SUB GROUPS: Group I - Xeno III, Group II - Clearfil SE Bond, Subgroup A - Uncontaminated (control), Subgroup B - Contaminated with saliva before application and light curing, Subgroup C - Contaminated with saliva after light curing. Composite resin Filtek Z350 was packed using Teflon mold cured and subjected to shear bond strength analysis using universal Instron machine. RESULTS: Statistical analysis was made using One-way ANOVA and Tukeys HSD test. Clearfil SE Bond showed very high statistically significant reduction in the bond strength, when salivary contamination took place after light curing; whereas, Xeno III showed very high statistically significant reduction when salivary contamination took place before application and light curing. CONCLUSION: Clearfil SE Bond showed more tolerance to salivary contamination of dentin and higher shear bond strength value, when compared to Xeno III.
Entities:
Keywords:
Bond strength; dentin bonding agents; salivary contamination
Authors: Y Yoshida; K Nagakane; R Fukuda; Y Nakayama; M Okazaki; H Shintani; S Inoue; Y Tagawa; K Suzuki; J De Munck; B Van Meerbeek Journal: J Dent Res Date: 2004-06 Impact factor: 6.116