Evaluating the Effect of Collagen Removal on Shear Bond Strength of Excite Dentin Adhesive System (Using NaOCl Treatment) In Vitro Study
DOI:
https://doi.org/10.52783/jns.v14.2648Keywords:
shear bond strength, sodium hypochlorite (NaOCl), collagen removal, Excite adhesive systemAbstract
Background: To evaluates the effect of collagen removal from acid etched dentin surface (using 10% sodium hypochlorite (NaOCl) for one minute on bond strength between composite resin and dentin surface using Excite adhesive system using two mechanism (wet and dry).
Material and Method: thirty sound human upper first premolars teeth recently extracted for orthodontic purpose were selected. 2mm from the buccal surface of the blocked tooth were grounded to obtain flat superficial dentin surface. The bonding systems were applied according to the following groups. (Each group consists of ten teeth), Group 1: Acid plus Excite bond, Group 2a: Acid/NaOCl (wet surface) plus Excite, Group 2b: Acid/NaOCl (dry surface) plus Excite.
Results: Shear bond strength is determined by using Instron testing machine and the results show that: There is a significant increase in shear bond strength after treatment of acid etched dentin with 10 % NaOCl for 1 min . There is no significant difference in the shear bond strength between dry and wet acid etched deproteinized dentin groups of the Excite adhesive system.
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