正畸舌侧固定保持器与压膜保持器在口腔正畸下颌固定保持中的应用价值对比研究

doi:10.3969/j.issn.1671-7171.2017.08.003

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Abstract 【Objective】To compare the application value of orthodontic lingual fixator and lamination retainer in oral orthodontic mandibular fixation. 【Methods】From January 2014 to December 2015 84 cases of oral orthodontic patients in our hospital were randomly divided into two groups, 42 cases in each group. Group A was wearing orthodontic lingual fixed retainer, while Group B group wearing retainer. After 1 year of follow-up, the Little anterior teeth irregularity index, the width of the canine tooth arch and the width of the molar arch were compared between the two groups when the appliance was removed and the retainer was worn 1 years later and periodontal tissue [plaque index (PI), gingival index (GI), calculus index (CI)], gingival crevicular fluid composition [(PS), sulfide alkaline phosphatase (ALP), aspartate aminotransferase (AST)] wearing after 1 week and 6 months after, and wearing comfort degree of the two groups were counted.【Results】(1) Maintainence effect: There was no significant difference between the Little index, the width of the dental arch and the width of the dental arch (P＞ 0.05) between the two groups at the time of removal and 1 year after the appliance of the retainer; 1 year after wearing the retainer, Little index, canine arch width, molar teeth, arch width of the two groups were changed, but the difference was not statistically significant comparing with fixed appliance removal (P＞0.05);(2)Periodontal tissue: There was no significant difference in PI, GI and CI between the two groups after one week of wearing the holder (P＞0.05); after 6 months, PI, GI and CI were increased in both groups, but the change of the group B was smaller than that of the group A,the difference was statistically significant (P＜0.05); (3) Gingival crevicular fluid composition: After 1 week wearing the holder, the difference of PS and ALP and AST between the two groups was not statistically significant (P＞0.05); after 6 months, the levels of PS and ALP and AST in the two groups were increased, but the change of the group B was smaller than that of the group A,the difference was statistically significant (P＜0.05); (4) Comfort: Comfort of the A group was 92.86% (39/42), which was higher than that of the group B 73.81% (31/42), the difference was statistically significant (P＜0.05). 【Conclusion】Both orthodontic tongue side fixation and lamination retainer can achieve good retention effect in the oral orthodontic mandibular fixation, the former has a high comfort but has a relatively large impact on the periodontal tissue of the patient, the latter has little effect on oral health, but the comfort and wear compliance are relatively low.

Key words： Orthodontic Retainers Orthodontics, Corrective Jaw Fixation Techniques Periodontium

Received: 19 February 2017

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R783.5

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	LI Jie

Cite this article:

LI Jie. Comparative Study of Orthodontic Lingual Fixator and Lamination Retainer in Oral Orthodontic Mandibular Fixation[J]. JOURNAL OF CLINICAL RESEARCH, 2017, 34(8): 1464-1467.

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http://www.jcr.net.cn/EN/10.3969/j.issn.1671-7171.2017.08.003 OR http://www.jcr.net.cn/EN/Y2017/V34/I8/1464

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