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In vivo remineralization of acid‐etched enamel in non‐brushing areas as influenced by fluoridated orthodontic adhesive and toothpaste
Author(s) -
PraxedesNeto Otávio José,
Borges Boniek Castillo Dutra,
FlorêncioFilho Cícero,
Farias Arthur Costa Rodrigues,
Drennan John,
Lima Kenio Costa De
Publication year - 2012
Publication title -
microscopy research and technique
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.536
H-Index - 118
eISSN - 1097-0029
pISSN - 1059-910X
DOI - 10.1002/jemt.22012
Subject(s) - toothpaste , enamel paint , dentistry , remineralisation , glass ionomer cement , phosphoric acid , fluoride , chemistry , materials science , medicine , metallurgy , inorganic chemistry
This study aimed to evaluate the in vivo remineralization of acid‐etched enamel in non‐brushing areas as influenced by fluoridated orthodontic adhesive and toothpaste. One hundred and twenty teeth from 30 volunteers were selected. The teeth were assigned to four treatments: no treatment (negative control); 37% phosphoric acid‐etching (PAE) (positive control); PAE + resin‐modified glass ionomer cement (RMGIC); and, PAE + composite resin. Patients brushed teeth with fluoridated ( n = 15) or non‐fluoridated ( n = 15) toothpastes, so that etched enamel was protected with screens and it was not in contact with the brush bristles. Remineralization was evaluated by means of laser fluorescence (LF), environmental scanning electronic microscopy, and energy dispersive spectrometry after extraction. The LF means were compared by means of Wilcoxon and Mann Whitney tests. Environmental scanning electron microscopy scores were compared among the groups using a Kruskal Wallis test, whereas the Ca/P ratio was evaluated by means of an Analysis of Variance with subparcels (treatments) and Tukey's post‐hoc test. There were no statistically significant differences between the tooth pastes and between the orthodontic adhesives evaluated. Most teeth presented only partial enamel remineralization. Therefore, t he fluoride released by the RMGIC was not enough to cause increased crystal regrowth in the acid‐etched enamel. The use of fluoridated toothpaste did not provide positive additional effect. Microsc. Res. Tech., 2012. © 2012 Wiley Periodicals, Inc.