Brazilian Journal of Oral Sciences
Piracicaba Dental School - UNICAMP
Vol. 11, No. 1, 2012, pp. 10-13
Bioline Code: os12002
Full paper language: English
Document type: Research Article
Document available free of charge
Brazilian Journal of Oral Sciences, Vol. 11, No. 1, 2012, pp. 10-13
© Copyright 2012 Braz J Oral Sci.
Preventive effect of an orthodontic compomer against enamel demineralization around bonded brackets|
Savariz, Alan Rafael Martins; Marquezan, Mariana & Mezomo, Maurício
Orthodontic appliances predispose to the accumulation of plaque due to the great number of retentive sites, which might lead to enamel demineralization adjacent to the accessories.
Aim: To assess the effectiveness of a compomer for orthodontic bonding in preventing the formation of white spots around orthodontic brackets.
Methods: Forty extracted human premolars were
divided into two groups: control group (CG), in which conventional resin Transbond™ XT Light
Cure (3M Unitek™) was used to bond the brackets; and experimental group (EG), in which the
compomer Transbond™ Plus Color Change (3M Unitek™) was used. pH cycling was performed
for 17 days to induce the demineralization process. Enamel on the buccal face was photographed
under a stereomicroscope (at 10x magnification) before (t0) and after (t1) pH cycling. The images
were used to compare demineralization between the groups by using a visual scale.
Results: A statistically significant difference between control and experimental groups was found (p=0.004) showing that the compomer was more efficient than the conventional resin in preventing white spots.
Conclusions: The compomer Transbond Plus Color Change was capable of inhibiting
enamel demineralization adjacent to the bonding area of brackets. However, the inhibition halo
did not exceed 1 mm.
brackets, fluoride, orthodontic adhesives, tooth demineralization
Alternative site location: http://www.fop.unicamp.br/brjorals