Adhesion of Streptococcus mutans and Streptococcus sobrinus sobrinus to different types of self-ligating brackets
Yang Pil-Seung, 유윤정, 차정열, 황충주,
소속 상세정보
( Yang Pil-Seung ) - Youngplant dental clinic
유윤정 ( Yu Yoon-Jeong ) - 연세대학교 치과대학 구강생물학교실
차정열 ( Cha Jung-Yul ) - 연세대학교 치과대학 교정학교실
황충주 ( Hwang Chung-Ju ) - 연세대학교 치과대학 교정학교실
KMID : 0362720120500070394
Abstract
Objective: 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.
키워드
Streptococcus mutans; Streptococcus sobrinus; Self-ligating bracket; Bacterial adhesion
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