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ORIGINAL RESEARCH Table of Contents   
Year : 2008  |  Volume : 19  |  Issue : 2  |  Page : 147-149
Heat radiation vs air drying to remove interfacial water from self-etch adhesives


Department of Conservative Dentistry and Endodontics, Sri Ramachandra Dental College, Porur, Chennai, Tamil Nadu - 600 116, India

Correspondence Address:
Irene Elza Mathews
Department of Conservative Dentistry and Endodontics, Sri Ramachandra Dental College, Porur, Chennai, Tamil Nadu - 600 116
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0970-9290.40470

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The clinician's quest for time-saving and technique-insensitive technology has led to the development of simplified self-etch adhesives that are predominantly water or solvent based. Several studies have shown that conventional air-drying procedures are incapable of eliminating all the residual water in the adhesive and that it may even cause collapse of the underlying collagen matrix. We hypothesized that heat from a light source may be effective in removing water from these adhesives. The aim of this study was, therefore, to evaluate the effectiveness of heat vs conventional air drying in eliminating water droplets from self-etch adhesive. A self-etch adhesive was applied to bur-cut dentin surfaces, which were then allotted to one of two treatment procedures for eliminating residual water from the adhesive: conventional air drying or the experimental heat application. Specimens were then prepared and analyzed using SEM. Specimens in the experimental group showed no evidence of water treeing within the adhesive layer. Thus, it was concluded that heat radiation was an effective method to remove residual water from simplified adhesives.


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