Adhesion of Streptococcus mutans and Streptococcus sobrinus to different types of selfligating brackets

다국어 초록 (Multilingual Abstract)

The adhesion capabilities of different types of self-ligating brackets were measured with respect to Streptococcus mutans and Streptococcus sobrinus. Methods: Five types of self-ligating brackets (Clippy-C; Mini Clippy; Clarity-SL; Speed;Damon 3) were used for the experiment group and composite resin brackets (Spirit-MB), metal brackets (Victory) and polycrystalline alumina brackets (Clarity) were used for the control group. In order to assess adhesion of bacteria to the brackets,the brackets were cultured for 3, 6 and 24 hours in media containing bacteria and 20% sucrose.
Results: There was no statistic difference in adhesion amount of Streptococcus mutans and Streptococcus sobrinus according to the types of brackets. A total adhesion amount according to bracket type was different. An extended incubation time increased adhesion amount. Observation under scanning electron microscope showed that Streptococcus sobrinus adhered more to Clippy-C and Victory rather than to Clarity-SL. Conclusions: Clarity-SL, a self-ligating esthetic bracket was confirmed to show lower bacterial adhesion to cariogenic bacteria, Streptococcus mutans and Streptococcus sobrinus group than other self-ligating brackets or conventional brackets, which suggests that proper use of self-ligating esthetic brackets might even be better in preventing tooth surface decalcification.

참고문헌 (Reference)

1 Gibbons R. J, "Synthesis of insoluble dextran and its significance in the formation of gelatinous deposits by plaque-forming streptocooci" 13 : 1249-1262, 1968

2 Balenseifen JW, "Study of dental plaque in orthodontic patients" 49 : 320-324, 1970

3 Ahn SJ, "Roles of salivary proteins in the adherence of oral streptococci to v23, In Micrbial Profile on metallic and ceramic bracket materials" 4 : 338-343, 2002

4 Ahn SJ, "Quantitative determination of adhesion patterns of cariogenic streptococci to various orthodontic brackets" 132 : 815-821, 2007

5 Lim BS, "Quantitative analysis of adhesion of cariogenic streptococci to orthodontic raw materials" MOSBY-ELSEVIER 133 (133): 882-888, 200806

6 Ulukapai H, "Monitoring the caries risk of orthodontic patients" 28 : 27-29, 1997

7 Bowden GH, "Modification of the release of calcium and phosphate from enamel by deposits of dextran-producing streptococci" 1 : 81-82, 1972

8 EIiades T, "Miccrobial attachment on orthodontic appliances: I. Wettability and early pellicle formation on bracket materials" 108 : 351-360, 1995

9 Brusca MI, "Influence of different orthodontic brackets on adherence of microorganisms invitro" 2 : 331-336, 2007

10 Babaahmady KG, "Ecological study of Streptococcus mutans, Streptococcus sobrinus and Lactobacillus spp. at subsites from approximal dental plaque from children" 32 : 51-58, 1998

11 Ahmady K, "Distribution of streptococcus mutans and streptococcus sobrinus at sub-sites in human approxiinal dental plaque" 27 : 135-139, 1993

12 Lundstrom R, "Caries incidence in orthodontic patients with high levels of Streptococcus mutans" 8 : 229-234, 1986

13 Faltermeir A, "Bacterial adhesion of Streptococcus mutans to esthetic bracket materials" 133 : S99-S103, 2008

14 Papaioannou W, "Adhesion of Streptococcus mutans to different types of brackets" 6 : 1090-1095, 2007

15 Fournie A, "Adherence of Streptococcus mutans to orthodontic brackets" 114 : 414-417, 1998