Anticariogenic effect of fluoride-releasing elastomers in orthodontic patients

• Autor(a) principal: Miura, Karina Katsue
• Data de Publicação: 2007
• Outros Autores: Ito, Izabel Yoko, Enoki, Carla, Elias, Ana Maria, Matsumoto, Mírian Aiko Nakane
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1590/S1806-83242007000300007; http://hdl.handle.net/11449/70089
• topic: Elastomers; Fluorides; Orthodontic appliances; Streptococcus mutans; Topical; anticaries agent; elastomer; fluoride varnish; adolescent; adult; bacterial count; chemistry; child; clinical trial; controlled clinical trial; controlled study; dental caries; drug effect; enamel; female; human; isolation and purification; male; microbiology; orthodontic device; randomized controlled trial; saliva; tooth disease; Adolescent; Adult; Cariostatic Agents; Child; Colony Count, Microbial; Dental Caries; Dental Caries Susceptibility; Dental Enamel; Female; Fluorides, Topical; Humans; Male; Orthodontic Appliances; Saliva; Tooth Demineralization

This in vivo experimental study evaluated the efficacy of fluoride-releasing elastomers in the control of Streptococcus mutans levels in the oral cavity. Forty orthodontic patients were recruited and divided into two groups of 20. Fluoride-releasing elastomeric ligature ties (Fluor-I-Ties, Ortho Arch Co. Inc., USA) were used in the experimental group, and conventional elastomeric ligature ties (D. Morelli, Brazil), in the control group. Two initial samples of saliva were collected at a 14-day interval to determine the number of colony forming units (CFU) of Streptococcus mutans. Immediately after collecting the second sample, fluoride-releasing elastomeric ligature ties were placed in the patients of the experimental group, and conventional ligature ties, in the patients of the control group. Seven, 14 and 28 days after placement of the elastomeric ligature ties, saliva and plaque surrounding the orthodontic appliance were collected for microbiologic analysis. There were no significant differences in the number of Streptococcus mutans CFUs in saliva or plaque in the area surrounding the fluoride-releasing or conventional elastomeric ligature ties. Thus, fluoride-releasing elastomeric ligature ties should not be indicated to reduce the incidence of enamel decalcification in orthodontic patients. Since there was no significant reduction in S. mutans in saliva or plaque, other means of prevention against enamel decalcification should be indicated for these patients.