Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)

Korean Academy of Pediatric Dentistry (대한소아치과학회)
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A STUDY ON THE ANTIMICROBIAL EFFECT OF FLUORIDE-RELEASING REMOVABLE ORTHODONTIC APPLIANCES

불소유리 가철성 교정장치의 항균효과에 관한 연구

  • Jang, Ki-Taeg (Department of Pediatric Dentistry, College of Dentistry & Dental Research Institute, Seoul National University)
  • 장기택 (서울대학교 치과대학 소아치과학교실 및 치학연구소)
  • Published : 1999.02.27
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Abstract

To study the antimicrobial effect of fluoride-releasing removable orthodontic appliances, 0 wt%(Group 1), 5 wt%(Group 2) and 10 wt%(Group 3) of $CaF_2$ were added to orthodontic resin. The specimens were then put in media in which S. mutans and Lactobacillus, known cariogenic bacteria, were cultured. Inhibiting zones were measured 24, 48 and 72 hours later. The following conclusions were reached: 1 In the Lactobacillus media, no zone of inhibition was observed regardless of the time passed. 2. In the S. mutans media, zones of inhibition were observed after 48 hours. 3. S. mutans showed greater inhibition in Group 3 compared to Group 2, after 72 hours rather than 48 hours(p<0.01).

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