下颌固定保持器的存活率:管式保持器与传统多股保持器的比较:一项前瞻性随机临床试验。

IF 1.3 4区 医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE
Kyungmin Clara Lee, Seung-Weon Lim, Jin-Hyoung Cho, Heesoo Oh, Hyeon-Shik Hwang
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引用次数: 0

摘要

研究目的本研究的目的是评估管式下颌固定保持器的存活率,并将其与传统的多排保持器进行比较:共有 66 名完成正畸治疗的患者参与了这项研究。他们被随机分配到管式保持器组或0.020多丝固定保持器组。在管式保持器组中,将热活性 0.012 NiTi 放入 6 个迷你管中,被动粘结在前牙上。在放置保持器后的 1、3、6、12 和 24 个月对患者进行复诊。在 2 年的随访期间,记录了保持器的首次失败情况。采用卡普兰-梅耶生存分析法和对数秩检验来比较两种保持器的失败率:在34名患者中,14人(41.2%)的多线保持器失败,而在32名患者中,只有2人(6.3%)的管式保持器失败。多丝固位体和管型固位体的失败率有显著的统计学差异(对数秩检验,P = 0.001)。危险比为 11.937(95% 置信区间为 2.708-52.620;P = 0.005):结论:使用管式保持器可以减少正畸保持期间保持器反复脱落的担忧。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Survival rates of mandibular fixed retainers: comparison of a tube-type retainer and conventional multistrand retainers : A prospective randomized clinical trial.

Survival rates of mandibular fixed retainers: comparison of a tube-type retainer and conventional multistrand retainers : A prospective randomized clinical trial.

Objective: The purposes of this study were to evaluate the survival rate of a tube-type mandibular fixed retainer and compare it to conventional multistrand retainers.

Materials and methods: In all, 66 patients who had completed their orthodontic treatment were enrolled in this study. They were allocated randomly to a tube-type retainer group or a 0.020 multistrand fixed retainer group. In case of the tube-type retainer, a thermoactive 0.012 NiTi was placed into 6 mini-tubes passively bonded to the anterior teeth. The patients were recalled at 1, 3, 6, 12, and 24 months after retainer placement. During the 2‑year follow-up period, any first-time failure of retainers was recorded. Kaplan-Meier survival analysis and log-rank tests were used to compare the failure rates between the two types of retainers.

Results: Of the 34 patients, 14 (41.2%) showed failure in the multistrand retainer group, whereas only 2 of 32 (6.3%) reported failure in the tube-type retainer group. There was a statistically significant difference in failure between the multistrand retainer and the tube-type retainer (log-rank test, P = 0.001). The hazard ratio was 11.937 (95% confidence interval 2.708-52.620; P = 0.005).

Conclusion: The tube-type retainer can be used with fewer concerns about recurrent retainer detachments during orthodontic retention.

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来源期刊
CiteScore
3.90
自引率
0.00%
发文量
64
审稿时长
>12 weeks
期刊介绍: The Journal of Orofacial Orthopedics provides orthodontists and dentists who are also actively interested in orthodontics, whether in university clinics or private practice, with highly authoritative and up-to-date information based on experimental and clinical research. The journal is one of the leading publications for the promulgation of the results of original work both in the areas of scientific and clinical orthodontics and related areas. All articles undergo peer review before publication. The German Society of Orthodontics (DGKFO) also publishes in the journal important communications, statements and announcements.
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