Effects of desensitizing agents on dentinal tubule occlusion
DOI:
https://doi.org/10.1590/S1678-77572004000200012Keywords:
Dentin hypersensitivity, Desensitizing agents, Dentinal tubule occlusionAbstract
The aim of this study was to evaluate the features of dentinal tubules occlusion following application of three commercially available desensitizing agents: potassium oxalate-based / Oxa-Gel (OX), HEMA and glutaraldehyde-based / Gluma Desensitizer (GD) and acidulated phosphate fluoride-based / Nupro Gel (AF). Buccal cervical areas of twenty-four extracted human third molars were smoothed and wet-polished with SiC papers and diamond pastes, in order to simulate the clinical aspect of hypersensitive dentin cervical surfaces. The teeth were randomly divided into four groups (n=6), according to the dentin surface treatments: G1: untreated; G2: OX; G3: GD; G4: AF. Specimens were fractured in the lingual-buccal direction and prepared for SEM analysis. OX promoted tubule occlusion by crystal-like deposits in the lumen of the tubules. While GL created a thin layer over the dentin surface, AF application produced precipitates that occluded the tubules. According to the SEM analysis, all desensitizing agents were able to occlude the dentinal tubules.Downloads
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Published
2004-06-01
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Original Articles
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Todo o conteúdo do periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons do tipo atribuição CC-BY.
How to Cite
Effects of desensitizing agents on dentinal tubule occlusion . (2004). Journal of Applied Oral Science, 12(2), 144-148. https://doi.org/10.1590/S1678-77572004000200012