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ORIGINAL ARTICLE
Year : 2012  |  Volume : 3  |  Issue : 1  |  Page : 64-68

Assessment and comparison of microleakage of a fluoride-releasing sealant after acid etching and Er: YAG laser treatment - An in vitro study


1 Department of Pedodontics and Preventive Dentistry, Vivekanandha Dental College for Women, Elayampalayam, Tiruchengode, Namakkal District, Tamil Nadu, India
2 Department of Pedodontics and Preventive Dentistry, Rajah Muthiah Dental College and Hospital, Annamalai University, Chidambaram, Tamil Nadu, India

Correspondence Address:
R Vijayaraghavan
Department of Pedodontics and Preventive Dentistry, Vivekanandha Dental College for Women, Elayampalayam, Tiruchengode, Namakkal District, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0976-237X.94549

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Aim : The aim of the present study was to estimate and compare the microleakage of a pit and fissure sealant after etching and Er:YAG laser treatment. Materials and Methods : Twenty non-carious premolars extracted for orthodontic reasons were equally divided into two groups. Samples in Group- I were treated with 37% phosphoric acid. Samples in Group II were irradiated with Er: YAG laser at 400 mJ at 4 Hz. Sealant was placed and light cured. Then, the samples were subjected to thermocycling. The samples were then immersed in 1% methylene blue. The samples were sectioned and examined under stereomicroscope at ×10 magnification. Results : Acid etched samples showed significantly less microleakage when compared to laser etching and it was statistically significant (P<0.01).


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