J Interdiscip Dentistry
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ORIGINAL ARTICLE
Year : 2012  |  Volume : 2  |  Issue : 2  |  Page : 98-103

Evaluation of the influence of flowable liner and two different adhesive systems on the microleakage of packable composite resin


Department of Conservative Dentistry & Endodontics, Manipal College of Dental Sciences, Manipal, Manipal University, Karnataka, India

Correspondence Address:
Muliya Vidya Saraswathi
Department of Conservative Dentistry & Endodontics, Manipal College of Dental Sciences, Manipal, Manipal University, Karnataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2229-5194.100601

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Aim: The aim of the study was to evaluate the microleakage of a packable resin composite using two adhesive systems (self-etch and total-etch) with and without a flowable liner. Materials and Methods: Class II cavities were prepared on 50 human molars, with standardized dimensions. The teeth were divided into five groups. In group I, the cavities were total-etched with phosphoric acid and bonded with an Adper single bond and then restored with a packable resin composite. In group II, the cavities were total-etched, bonded with an Adper single bond and a flowable resin composite was placed as a liner and restored with a packable resin composite. In group III, self-etching adhesive was used instead of total-etch and a procedure similar to group II was performed. In group IV, a procedure similar to group III was performed, except with the placement of a flowable resin composite liner. Group V served as a control where neither adhesive nor a flowable liner was used. All the samples were placed in a dye for 24 hours and examined for leakage. Results: Packable resin composite, when used alone with self-etch adhesive, demonstrated minimum microleakage when compared to the total-etch system (P = 0.30). The lining of class II cavities with a flowable resin composite, followed by packable restoration, demonstrated higher leakage values than when the packable resin composite was used alone (P = 0.001). Conclusion: The use of a self-etch adhesive system was superior to the total-etch system when the cavities were restored with a combination of a flowable resin composite liner, overlaid with a packable resin composite. Clinical Relevance to Interdisciplinary Dentistry
  1. A flowable resin composite can be used as a liner material between dentin and a packable resin composite to reduce microleakage.
  2. Use of a proper adhesive system is one of the key factors in reducing microleakage in packable composite resin.


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