Evaluation of Bond Strength of Dentin Adhesive at Dry and Moist Dentin-Resin Interface: An In-vitro Study
Keyur Pankaj. Chande, Narendra U. Manwar, Manoj G. Chandak,
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( Keyur Pankaj. Chande ) - Datta Meghe Institue of Medical Sciences Sharad Pawar Dental College Department of Conservative Dentistry and Endodontics
( Narendra U. Manwar ) - Datta Meghe Institue of Medical Sciences Sharad Pawar Dental College Department of Conservative Dentistry and Endodontics
( Manoj G. Chandak ) - Datta Meghe Institue of Medical Sciences Sharad Pawar Dental College Department of Conservative Dentistry and Endodontics
KMID : 1157520130090040221
Abstract
Objective: The aim of this study is to compare the effect of surface moisture on dentinal tensile bond strength.
Methods: Eighty freshly extracted caries free Mandibular first molars were selected. The specimens were randomly divided into four groups of 20 teeth each. Occlusal surface were ground by diamond disc till all occlusal enamel is removed. After treating the occlusal surface of specimens with 37% orthophosphoric acid for 15 sec, specimens were divided into 4 groups namely. Group I (Over wet), Group II (Blot Dry), Group III (One Second Dry) and Group IV (Over Dry). Each group was treated with single bond adhesive (3M ESPE). Composite cylinders were build up using Teflon moulds and cured. Tensile bond strength was tested using INSTRON universal testing machine. The results were analysed statistically.
Results: The tensile bond strength values were highest in Group II (Blot dry) and statistically significant.
Conclusion: Blot drying after etching provided better bond strength.
키워드
blot dry; dentin; surface moisture
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