Original scientific paper
https://doi.org/10.15644/asc47/3/2
Micro-Tensile Bond Strength of Fissure Sealants Treated with Different Antibacterial Agents
Ozgur Onder Kuscu
; Department of Paediatric Dentistry, Dental School, Yeditepe University, Istanbul, Turkey
Nuket Sandalli
; Department of Paediatric Dentistry, Dental School, Yeditepe University, Istanbul, Turkey
Esber Caglar
; Department of Paediatric Dentistry, Dental School, Yeditepe University, Istanbul, Turkey
Fatos Alp
; Department of Paediatric Dentistry, Dental School, Yeditepe University, Istanbul, Turkey
Abstract
Objective of this in vitro study was to evaluate the micro-tensile enamel bond strength of fissure sealants treated by an antibacterial self-etching agent, antibacterial pretreatment prior to application of a self-etching adhesive system and self-etching adhesive system alone using the simplified enamel fissure model. Materials and Methods: Fresh extracted bovine mandibular incisors were randomly divided into four groups: A. 35% phosphoric acid + Clinpro sealant®; B. 35%
phosphoric acid + Clearfil protect bond + Clinpro sealant®; C. 35% phosphoric acid + Consepsis Scrub® + Clearfil SE bond® + Clinpro sealant®; D. 35% phosphoric acid + Clearfil SE bond® + Clinpro sealant®. Two pieces (4 x 6 mm) of enamel were secured with wax on a sterile glass slide to a mean distance of 0.6 ± 0.1 mm. Vertically sectioned bars (≈1mmx 1mm) were submitted to tensile tests at constant crosshead speed (1mm/min) using a universal testing machine. Fractured surfaces were inspected to determine the mode of fracture. Regarding statistical analysis, One-way variance, Tukey and Chi-square tests were applied. Results: The micro-tensile bond
strengths of group C (34.63±15.59 MPa) was significantly higher than group A (19.86±7.08 MPa) (p:0.0001), group B (24.49±9.38 MPa) (p:0.002) and group D (19.84±9.92 MPa) (p:0.0001). Failures were predominantly adhesive in nature; where there were no statistically significant differences in fracture patterns between groups. (p:0,343). Conclusion: The micro-tensile bond strength of a self-etching adhesive system previously treated with chlorhexidine cavity disinfectant was significantly higher than an antibacterial self-etching adhesive system alone, a self-etching adhesive system and a conventional acid etching system.
Keywords
Tensile Strength; Pit and Fissure Sealants; Dental Enamel; Anti-Bacterial Agents; Adhesives
Hrčak ID:
108214
URI
Publication date:
15.9.2013.
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