Space Closure with Different Appointment Intervals: A Split-mouth Randomized Controlled Trial.

IF 0.9 Q3 DENTISTRY, ORAL SURGERY & MEDICINE
Contemporary Clinical Dentistry Pub Date : 2024-04-01 Epub Date: 2024-07-10 DOI:10.4103/ccd.ccd_617_21
Hend Salah ElSayed, Amr Ragab El-Beialy, Juan Martin Palomo, Yehya Ahmad Mostafa
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引用次数: 0

Abstract

Background: Canine retraction has been successful with various force systems and retraction techniques. The appointment interval for force reactivation in canine retraction along the archwire is 4-8 weeks.

Aims: The aim was to evaluate the effect of different reactivation intervals on the rate of space closure.

Settings and design: This split-mouth randomized clinical trial recruited 38 patients indicated for the first premolar extraction.

Methods: Monthly digital models were acquired for 6 months. The first premolars were extracted, and temporary anchorage devices were placed for maximum anchorage control. The canines were retracted using elastomeric chains which were replaced every 2, 4, 6, or 8 weeks. The monthly rate of canine retraction was measured. The time to space closure was calculated. The secondary outcome was the mesial drift of the first molars.

Statistical analysis: The Kaplan-Meier survival analysis and the Friedman test evaluated and compared the groups.

Results: There was no significant difference between the monthly canine retraction rate or the first molar mesial drift between the groups. The mean time to space closure was 5.74 months in the 2-week reactivation group, which was statistically less than the other groups.

Conclusions: The 2-week reactivation interval may reduce time to space closure. Direct anchorage control with miniscrews limited anchorage loss significantly.

不同预约时间间隔的空间封闭:分口随机对照试验。
背景:使用不同的力量系统和牵引技术已经成功地牵引了犬齿。目的:该研究旨在评估不同重新激活间隔对间隙关闭率的影响:这项分口随机临床试验招募了38名第一前磨牙拔除患者:方法:每月采集数字模型,为期 6 个月。第一前磨牙拔除后,放置临时锚定装置以实现最大程度的锚定控制。使用弹性链牵引犬齿,弹性链每 2、4、6 或 8 周更换一次。测量每月的犬齿回缩率。计算空间关闭的时间。统计分析:卡普兰-梅耶生存分析和弗里德曼检验对各组进行了评估和比较:结果:各组间的每月犬齿退缩率和第一磨牙中位偏移无明显差异。2周重新激活组的空间闭合平均时间为5.74个月,在统计学上少于其他组:结论:间隔两周重新激活可缩短间隙关闭时间。结论:2周的再激活间隔可缩短空间闭合时间。使用微型螺钉进行直接锚固控制可显著限制锚固丧失。
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来源期刊
Contemporary Clinical Dentistry
Contemporary Clinical Dentistry DENTISTRY, ORAL SURGERY & MEDICINE-
CiteScore
1.50
自引率
0.00%
发文量
52
审稿时长
23 weeks
期刊介绍: The journal Contemporary Clinical Dentistry (CCD) (Print ISSN: 0976-237X, E-ISSN:0976- 2361) is peer-reviewed journal published on behalf of Maharishi Markandeshwar University and issues are published quarterly in the last week of March, June, September and December. The Journal publishes Original research papers, clinical studies, case series strictly of clinical interest. Manuscripts are invited from all specialties of Dentistry i.e. Conservative dentistry and Endodontics, Dentofacial orthopedics and Orthodontics, Oral medicine and Radiology, Oral pathology, Oral surgery, Orodental diseases, Pediatric Dentistry, Periodontics, Clinical aspects of Public Health dentistry and Prosthodontics. Review articles are not accepted. Review, if published, will only be by invitation from eminent scholars and academicians of National and International repute in the field of Medical/Dental education.
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