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A Study on Dental Caries Activity Assessment from Saliva of Students of Dentistry College (I)  

Son, Seung Hwa (Department of Dental Hygienist, Gangdong College)
Kim, Dong Ae (Department of Dental Biomaterials, College of Dentistry, Dankook University)
Park, Young Min (Department of Dental Hygiene, Yeoju Institute of Technology)
Publication Information
Journal of dental hygiene science / v.13, no.2, 2013 , pp. 182-190 More about this Journal
Abstract
Composition of oral microbial flora is suggested to play a role in the maintenance of oral health. Among them, Streptococcus mutans plays an essential role in the formation of dental plaque and it is being noticed as incipient infective bacteria of dental caries. The purpose of this study was to prepare the basic data about distribution of Streptococcus mutans detected from saliva by measuring colony density. It is well known that smoking as well as drinking is a factor of dental caries, however there are few investigations about distribution of Streptococcus mutans either smoking or drinking. The materials of this study were collected from students of dentistry college with general characteristics obtained by self-administered questionnaires. Students were asked to gently chew the paraffin to get saliva for 1 minute. Bacitracin disc in the culture medium was activated for 15 minutes, and then sample was incubated in the activated medium at $37^{\circ}C$ incubator for 48 hours. Streptococcus mutans colonization per 1 ml saliva was measured by the number of criteria. The severe levels of dental caries activity were significantly increased in the case of smoking (from 5.6% to 10%) or drinking (form 0% to 7%), respectively. Also, dental caries activity increased according to smoking and drinking periods longer. However, using the SPSS analytical process (Mann-Whitney's U), no significant differences were observed between the smoking and the non-smoking or the drinking and non-drinking, respectively. These results obtained from dental caries activity of saliva suggest that distribution of Streptococcus mutans following smoking or drinking can be used as a significant information for oral health.
Keywords
Dental caries; Drinking; Saliva; Smoking; Streptococcus mutans;
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Times Cited By KSCI : 2  (Citation Analysis)
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