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http://dx.doi.org/10.4041/kjod.2009.39.2.105

Quantitative analysis of mutans streptococci adhesion to various orthodontic bracket materials in vivo  

Yu, Jin-Kyoung (School of Dentistry, Seoul National University)
Ahn, Sug-Joon (Department of Orthodontics and DRI, School of Dentistry, Seoul National University)
Lee, Shin-Jae (Department of Orthodontics and DRI, School of Dentistry, Seoul National University)
Chang, Young-Il (Department of Orthodontics and DRI, School of Dentistry, Seoul National University)
Publication Information
The korean journal of orthodontics / v.39, no.2, 2009 , pp. 105-111 More about this Journal
Abstract
Objective: To estimate the effects of bracket material type on enamel decalcification during orthodontic treatment, this study analyzed the adhesion level of mutans streptococci (MS) to orthodontic bracket materials in vivo. Methods: Three different types of orthodontic bracket materials were used: stainless steel, monocrystalline sapphire, and polycrystalline alumina. A balanced complete block design was used to exclude the effect of positional variation of bracket materials in the oral cavity. Three types of plastic individual trays were made and one subject placed the tray in the mouth for 12 hours. Then, the attached bacteria were isolated and incubated on a mitis salivarius media containing bacitracin for 48 hours. Finally, the number of colony forming units of MS was counted. The experiments were independently performed 5 times with each of the 3 trays, resulting in a total of 15 times. Mixed model ANOVA was used to compare the adhesion amount of MS. Results: There was no difference in colony forming units among the bracket materials irrespective of jaw and tooth position. Conclusions: This study suggested that the result of quantitative analysis of MS adhesion to various orthodontic bracket materials in vivo may differ from that of the condition in vitro.
Keywords
Orthodontic bracket; Mutans streptococci; Bacterial adhesion; in vivo experiment;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
Times Cited By Web Of Science : 2  (Related Records In Web of Science)
Times Cited By SCOPUS : 1
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