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Updated: Mar 20, 2026
Oral Biofilm Formation on Different Materials for Dental Implants
Published on: June 24, 2018
An in situ Evaluation of Bioactives on the Morphology of Bleached Enamel
Thiago da Rosa Nogueira1, Larissa Dias Alexandrino1, Yasmin do Socorro Batista de Lima Gomes1
1Department of Restorative Dentistry, Federal University of Pará, Para, Brazil.
Aim:
The aim of this study was to use surface rugosity analysis (Ra) and scanning electron microscopy (SEM) comparing effects of nano-hydroxyapatite (NANO), casein phosphopeptide-amorphous calcium phosphate (CPP-ACP), and NovaMin (NOVA) on enamel's human morphology bleached with 37.5% hydrogen peroxide.
Materials And Methods:
Forty specimens (3 × 3 × 3 mm) were obtained from fully included third molars and four specimens were attached in the first molars of the volunteers. The POLA-positive control has only been bleached. Three experimental groups were bleached and treated with respective bioactive: NANO, CPP-ACP, and NovaMin. The Ra analyses were performed before and after the treatment using a rugosimeter. The obtained photomicrographs were analyzed using SEM (n = 3) by three examiners, and the study was double blind.
Results:
The Ra results were analyzed by one-way analysis of variance and Tukey's post hoc test (p < 0.05). All experimental groups showed significant differences of the others; however, the experimental groups were not significantly different from each other.
Conclusion:
The enamel morphology of the bioactive-treated groups had more regular surfaces, than the others.
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