Evaluation of the microleakage of occlusal sealant in deciduous enamel teeth: effect of different application techniques
DOI:
https://doi.org/10.11606/issn.2357-8041.clrd.2018.148897Keywords:
Dental decay, Deciduous teeth, Primary preventionAbstract
Objectives: Since deciduous teeth are more prone to the development of dental decay, this study aimed to compare the effect of different strategies for sealant application in pits and fissures, whether isolated or associated, on the enamel microleakage in molars of deciduous teeth. Materials and methods: deciduous teeth molars were selected (n = 8) and received the following treatments: 1) control group: acid etching + sealant; 2) abrasive air + acid etching + sealant; 3) acid etching + adhesive + sealant; 4) abrasive air + acid etching + adhesive + sealant. After treatment, the teeth were immersed in distilled water at 370 °C for seven days and subjected to thermocycling of 350 cycles of cold (5 °C) and hot (55 °C) baths, for 30 seconds in each exposure. Afterwards, the teeth were covered with varnish – leaving only the sealed area exposed, extended by 1 mm –, waterproofed with epoxy resin and immersed in methylene blue solution for 48 hours at 37 °C. Then, the teeth were buccal-lingually sectioned and microscopically evaluated (40× magnification). The results were subjected to the Kruskal-Wallis and to the Mann-Whitney tests (p < 0.05). Results: the groups that received the adhesive prior to the sealant application have presented the lowest index of microinfiltration. The group that received abrasive air and acid etching before the sealant have showed more extensive microleakage. Conclusions: none of the techniques conducted herein have completely avoided the microleakage, however the adhesive application may be the most indicated technique.
Downloads
Downloads
Published
Issue
Section
License
Authors are requested to send, together with the letter to the Editors, a term of responsibility. Thus, the works submitted for appreciation for publication must be accompanied by a document containing the signature of each of the authors, the model of which is presented as follows:
I/We, _________________________, author(s) of the work entitled_______________, now submitted for the appreciation of Clinical and Laboratorial Research in Dentistry, agree that the authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
Date: ____/____/____Signature(s): _______________
