Contemporary Clinical Dentistry (Jan 2012)

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

  • R Vijayaraghavan,
  • V Arun Prasad Rao,
  • N Venugopal Reddy,
  • R Krishnakumar,
  • D K Sugumaran,
  • G Mohan

DOI
https://doi.org/10.4103/0976-237X.94549
Journal volume & issue
Vol. 3, no. 1
pp. 64 – 68

Abstract

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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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