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- Title
Enamel morphology after microabrasion with experimental compounds.
- Authors
PINI, NÚBIA I. P.; COSTA, RAFAELA; BERTOLDO, CARLOS E. S.; AGUIAR, FLAVIO H. B.; LOVADINO, JOSÉ R.; NUNES LEITE LIMA, DÉBORA ALVES
- Abstract
Background: Enamel micro abrasion is an esthetic treatment for removing superficial stains or defects of enamel. Aim: This study evaluated the roughness after enamel micro abrasion using experimental micro abrasive systems. Materials and Methods: One hundred and ten samples (5 × 5 mm) were obtained from bovine incisors and divided into 11 groups (n = 10) in accordance with the treatment: Micro abrasion using 6.6% hydrochloric acid (HC) or 35% phosphoric acid (H3PO4) associated with aluminum oxide (Al3) or pumice (Puma) with active application (using rubber cup coupled with a micro-motor of low rotation) or passive application (just placing the mixture on the enamel surface); just the use of acids in a passive application (negative control), and a group without treatment (positive control). Roughness analysis was performed before and after treatments. The statistical analysis used analysis of variance (PROC MIXED), Turkey-Kramer and Dunne tests (P < 0.05). Representative specimens were evaluated using scanning electron microscopy (ESEM). Results: There was no significant difference between the acids used (P = 0.0510) and the applications (P = 0.8989). All of the treated groups were statistically different from the positive control. When using passive application, the use of HC + Al3 resulted in higher roughness when compared with HC + Puma. Additionally, this treatment was statistically different from the passive application of H3PO4 (negative control) (P < 0.05). However, ESEM analysis showed that the treatment with Al3 resulted in an enamel surface with a more polished aspect when compared with Puma. Conclusion: Al3 may be a suitable particle for use in micro abrasive systems.
- Subjects
DENTAL enamel microabrasion; DENTAL enamel; INCISORS; HYDROCHLORIC acid; ALUMINUM oxide; PUMICE; SCANNING electron microscopy
- Publication
Contemporary Clinical Dentistry, 2015, Vol 6, Issue 2, p170
- ISSN
0976-237X
- Publication type
Article
- DOI
10.4103/0976-237X.156038