Changes of oral flora within 6 months after fixed metal orthodontic treatment

doi:10.3969/j.issn.2095-4344.2014.39.010

Abstract

Abstract:

BACKGROUND: Currently, there are a lot of studies addressing oral microflora variation in patients wearing fixed orthodontic appliance.
OBJECTIVE: To determine the changes in Streptococcus mutans, Lactobacillus and oral health in teenagers wearing metal orthodontic appliances.
METHODS: Twenty-three who were subjected to fixed metal orthodontic appliances as testing group and 18 adolescent volunteers with no oral diseases served as controls. We collected saliva samples from all the participants immediately, 90 days and 180 days after fixed metal orthodontic treatment to detect changes in Streptococcus mutans and Lactobacillus, which can lead to dental caries, and other oral parameters, including gingival index and oral hygiene index.
RESULTS AND CONCLUSION: In the control group, there were no difference in Streptococcus mutans, Lactobacillus, gingival index and oral hygiene index at three time points. In the testing group, the hazard levels of Streptococcus mutans and Lactobacillus were significantly increased at 90 and 180 days than immediately after fixed metal orthodontic treatment (P < 0.05), as well as the gingival index at 90 days and oral hygiene index at 180 days became worse (P < 0.05). At 180 days after fixed metal orthodontic treatment, the hazard levels of Streptococcus mutans and Lactobacillus, gingival index and oral hygiene index were severer in the testing group than the control group (P < 0.05). These findings indicate that the fixed metal orthodontic appliance could lead to increasing of Streptococcus mutans and Lactobacillus, and reduce oral health status badly.

中国组织工程研究杂志出版内容重点：生物材料；骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性；组织工程

全文链接：

Key words: orthodontic appliances, periodontal index, oral hygiene index

CLC Number:

R318

Hao Chun-bo, Xie Qi, Chen Xiao-bin, Guo Dong-mei, Liang Zhen-geng. Changes of oral flora within 6 months after fixed metal orthodontic treatment[J]. Chinese Journal of Tissue Engineering Research, 2014, 18(39): 6287-6291.

Figures/Tables 2

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