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The effect of chlorhexidine on plaque index and mutans streptococci in orthodontic patients: A pilot study

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DOI: 10.4236/ojst.2013.36054    3,452 Downloads   5,188 Views   Citations

ABSTRACT

Aim: The purpose of this study was to assess chlorhexidine effects on plaque index and salivary levels of mutans streptococci (MS) when used as the immersion solution for removable orthodontic appliances and added to their acrylic resin composition. Methods: Forty-five patients (6 to 12 years old) were randomly assigned into three groups with 15 patients each. Group I (control)without orthodontic appliances disinfection; Group IIremovable orthodontic appliances which had been immersed in 0.12% chlorhexidine digluconate overnight (8 hours), and Group IIIorthodontic appliances in which 0.12% chlorhexidine digluconate solution had been incorporated into their resin composition. Saliva was collected for quantification of MS and evaluation of plaque index was performed before and after installation of orthodontic appliance at 0, 2, 4, 6, 8, and 10 weeks. Data were analyzed by using analysis of variance. Results: Number of MS colonies in saliva and plaque index showed no statistically differences among groups at the different periods (p > 0.05). Conclusions: It could be concluded that chlorhexidine incorporation into the acrylic resin of removable orthodontic appliances at 0.12% concentration and immersion of the appliance into 0.12% chlorhexidine solution were not effective in reducing plaque index and the number of MS in saliva.

Conflicts of Interest

The authors declare no conflicts of interest.

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Faria, G. , Santamaria Jr., M. , dos Santos, B. , Ito, I. , Bregagnoloq, J. and Sasso Stuani, M. (2013) The effect of chlorhexidine on plaque index and mutans streptococci in orthodontic patients: A pilot study. Open Journal of Stomatology, 3, 323-328. doi: 10.4236/ojst.2013.36054.

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