Photochem Photobiol. 2022 Apr 16. doi: 10.1111/php.13635. Online ahead of print.
ABSTRACT
Fissure sealant application is an efficient method for dental caries prevention. Self-etch fissure sealants (SE-FS) eliminate the separate etching step for bonding. The present study investigated the micro-shear bond strength (μSBS) of a SE-FS (Prevent seal®, Itena©, France) to enamel pretreated with different methods including Er,Cr:YSGG laser, under non-contaminated and saliva-contaminated conditions. Sixty human premolars were sectioned into halves and randomly assigned into two groups of saliva-contaminated and non-contaminated. Each group was further divided into six subgroups (N=10) of different enamel pretreatment methods: (Laser+SE-FS), (Acid etch+SE-FS), (Laser+Acid-etch+SE-FS), (Mechanical preparation+SE-FS), (SE-FS), and (Acid-etch+Bonding+Conventional fissure sealant) as positive control. The μSBS of the sealant material to enamel was measured in all subgroups. Two-way ANOVA and Tukey tests were applied at p<0.05. Saliva contamination had a significant effect on μSBS (P<0.001), while pre-treatment with laser or acid etching did not significantly affect the μSBS (P=0.251). The μSBS of SE-FS to untreated enamel surface was significantly lower than the positive control (P=0.035). The μSBS value in the subgroup receiving laser+etching+SE-FS was significantly higher than the remaining five subgroups (P<0.001). Other pairwise comparisons were not statistically significant (P>0.05). Acid-etch and Er,Cr:YSGG laser exert a synergic effect on μSBS of Prevent Seal®, irrespective of saliva contamination.
PMID:35429351 | DOI:10.1111/php.13635
