Antimicrobial properties of TiO2-xNx antibacterial bracket

doi:10.3969/j.issn.2095-4344.2015.34.008

Abstract

Abstract:

BACKGROUND: TiO_2-xN_x film has good antibacterial effects on Streptococcus mutans, Actinomyces viscosus and Candida albicans.

OBJECTIVE: To investigate the antimicrobial property of TiO_2-xN_x bracket.

METHODS: Ten orthodontic patients were selected, and their teeth were divided into two parts by oral midline and respectively treated with ordinary metal brackets and TiO_2-xN_x bracket. Orthodontic plaque index, gingival index, gingival sulcus bleeding index and enamel demineralization index were detected before, and at 1, 2, 3, 4 weeks after orthodontic treatment.

RESULTS AND CONCLUSION: For the ordinary metal brackets, the orthodontic plaque index, gingival index, gingival sulcus bleeding index and enamel demineralization index were all increased after orthodontic treatment (P < 0.05); for the TiO_2-xN_x bracket, the gingival index was increased at 3 weeks after treatment (P < 0.05), the gingival sulcus bleeding index was increased at 1, 2, 3 weeks after treatment (P < 0.05), and the enamel demineralization index was increased at 2, 3, 4 weeks after treatment (P < 0.005). Compared with the ordinary metal brackets, the orthodontic plaque index and gingival sulcus bleeding index were lower in the TiO_2-xN_x bracket group at 1-4 weeks after treatment (P < 0.05), and the gingival index and enamel demineralization index were lower in the TiO_2-xN_x bracket group at 2-4 weeks after treatment (P < 0.05). These findings indicate that the TiO_2-xN_x film bracket has excellent antibacterial properties, which is better to control and removal dental plaques.

中国组织工程研究杂志出版内容重点：组织构建；骨细胞；软骨细胞；细胞培养；成纤维细胞；血管内皮细胞；骨质疏松；组织工程

Key words: Dental Plaque Index, Periodontal Index, Orthodontic Appliances

CLC Number:

R318

Wang Jian-wei, Wang Pu, Lin Bing-peng, Cao Bao-cheng. Antimicrobial properties of TiO_2-xN_x antibacterial bracket[J]. Chinese Journal of Tissue Engineering Research, 2015, 19(34): 5448-5452.

Figures/Tables 3

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