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The effect of different enamel surface treatments on the microleakage of fissure sealants

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Abstract

The aim of this study was to evaluate the effects of different techniques of surface treatment on the microleakage of a fissure sealant in molar teeth. A total of 50 freshly extracted noncarious human third molars were randomly assigned to one of five groups. Occlusal fissures were treated with one of the following: acid etching with 35% orthophosphoric acid (group 1); fissurotomy with a Fissurotomy Micro NTF metal bur (group 2); laser etching with an Er,Cr:YSGG laser at 2 W and 20 Hz (group 3); laser etching with an Er,Cr:YSGG laser at 2 W and 40 Hz (group 4); and air abrasion for 20 s with 30-µm Al2O3 particles via a CoJet Prep device (group 5). After surface pretreatment, a resin-based sealant was applied to the fissures. The sample teeth were subjected to thermocycling and stored in distilled water at 37°C for 1 month. Following immersion in 0.5% basic fuchsin solution for 24 h, three buccolingual slices of each sample tooth were scored under a stereomicroscope, and the morphological appearance of the area between the enamel surface and fissure sealant was examined under a scanning electron microscope. The Kruskal-Wallis test and one-way ANOVA revealed significant differences in marginal leakage, as follows: group 1 showed significantly lower scores than groups 2 and 5, the scores of groups 1, 3 and 4 were not significantly different, and group 2 showed significantly higher scores than groups 3 and 4. Laser irradiation, the metal bur, and the CoJet Prep device did not eliminate the need for acid etching of the enamel prior to placement of a fissure sealant. Laser etching at 2 W (20 Hz or 40 Hz) may be an alternative to conventional acid-etching.

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Authors and Affiliations

  1. Department of Pediatric Dentistry, Faculty of Dentistry, Karadeniz Technical University, Trabzon, Turkey

    Ozgul Baygin, Tamer Tüzüner & Mehmet Tanriver

  2. Department of Prosthodontics, Faculty of Dentistry, Karadeniz Technical University, Trabzon, Turkey

    Fatih Mehmet Korkmaz

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  1. Ozgul Baygin
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  2. Fatih Mehmet Korkmaz
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  3. Tamer Tüzüner
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  4. Mehmet Tanriver
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Correspondence to Ozgul Baygin.

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Baygin, O., Korkmaz, F.M., Tüzüner, T. et al. The effect of different enamel surface treatments on the microleakage of fissure sealants. Lasers Med Sci 27, 153–160 (2012). https://doi.org/10.1007/s10103-011-0918-x

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  • DOI: https://doi.org/10.1007/s10103-011-0918-x

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