Journal of Conservative Dentistry
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ORIGINAL ARTICLE
Year : 2010  |  Volume : 13  |  Issue : 1  |  Page : 9-15

Effect of different placement techniques on marginal microleakage of deep class-II cavities restored with two composite resin formulations


1 Department of Conservative Dentistry and Endodontics, Sri Sai College of Dental Surgery, Vikarabad, India
2 Department of Conservative Dentistry and Endodontics, Vishnu Dental College, Bhimavaram, Andhra Pradesh, India
3 Department of Conservative Dentistry and Endodontics, Bapuji Dental College and Hospital, Davangere, Karnataka, India
4 Department of Conservative Dentistry and Endodontics, Surendra Dental College and Hospital, Sri Ganganagar, Rajasthan, India

Correspondence Address:
M Radhika
Department of Conservative Dentistry and Endodontics, Sri Sai College of Dental Surgery, Opposite Shiv Sagar, Kothrepally, Vikarabad, Andhra Pradesh-501 10
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-0707.62633

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Aim: The study aims to evaluate and compare marginal microleakage in deep class II cavities restored with various techniques using different composites. Materials and Methods: Sixty freshly extracted teeth were divided into six groups of 10 teeth each. Standardized class II cavities were made and were restored using composites of different consistencies with different placement techniques. Group 1 with Microhybrid composite, Group 2 with Packable composite, Group 3 Microhybrid composite with a flowable composite liner, Group 4 Packable composite with a flowable composite liner, Group 5 Microhybrid composite with precured composite insert in second increment and Group 6 Packable composite with precured insert in second increment. Specimens then were stored in distilled water, thermocycled and immersed in 50% silver nitrate solution. These specimens were sectioned and evaluated for microleakage at the occlusal and cervical walls separately using stereomicroscope. Results: The results demonstrated that in the occlusal wall, packable composite, showed significantly more marginal microleakage than the other groups. In the cervical wall, teeth restored with a flowable composite liner showed less marginal microleakage when compared to all other groups. Conclusion: Based on the results of this study, the use of flowable composite as the first increment is recommended in deep class II cavities.


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