Journal of Conservative Dentistry
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ORIGINAL ARTICLE
Year : 2008  |  Volume : 11  |  Issue : 3  |  Page : 127-130

The influence of salivary contamination on the shear bond strength of two newer generation dentin bonding agents - An in vitro study


Department of Conservative Dentistry and Endodontics, A. B. Shetty Memorial Institute of Dental Sciences, Deralakatte, Mangalore, Karnataka, India

Correspondence Address:
Shibani K Shetty
Department of Conservative Dentistry and Endodontics, A. B. Shetty Memorial Institute of Dental Sciences, Deralakatte, Mangalore-574 160, Karnataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-0707.45252

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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.


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