Effect of low-level laser therapy on en masse retraction in females with bimaxillary dentoalveolar protrusion : A single-center randomized clinical trial.

IF 1.3 4区 医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE
Heba Mohamed Dehis, Fouad Aly El Sharaby, Faten Husain Eid, Yehya Ahmed Mostafa
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引用次数: 0

Abstract

Background: Acceleration of tooth movement has gained remarkable attention during the last decade. The aim of this study was to evaluate the effect of low-level laser therapy (LLLT) on en masse retraction of upper anterior teeth in adult women with bimaxillary dentoalveolar protrusion.

Materials and methods: In this two-arm parallel trial, 36 women with bimaxillary dentoalveolar protrusion were randomly divided into two equal groups. Eligibility criteria included class I Angle molar relationship, good general and oral health as well as no systemic disease or syndrome. Four temporary anchorage devices (TADs) were used in the upper and lower arches for anchorage purposes. A 0.019×0.025-inch stainless steel wire with crimped hooks just distal to the maxillary canines was inserted. Nickle titanium (NiTi) closed coil springs (200 g/side) were employed for en masse retraction following extraction of the first premolars. In the laser group (LG), retraction of the upper anterior teeth was done along with the application of LLLT on days 0, 3, 7, and 14 after extraction and then repeated biweekly until the end of retraction. Retraction was completed without LLLT application in the nonlaser group (NLG). Data concerning the rate of retraction as well as first molars and anterior positional changes were gained from digitized models and cone beam computed tomography (CBCT) scans taken just before extraction and at the end of retraction. Treatment-associated pain and root resorption were evaluated using visual analogue scale (VAS) and CBCT scans, respectively.

Results: Four patients dropped out prior to follow-up. The duration of retraction was 10.125 ± 2.876 and 13.643 ± 3.455 months in the LG and NLG, respectively. The LG showed a statistically significant faster rate of en masse retraction (0.833 ± 0.371 mm/month) compared to the NLG (0.526 ± 0.268 mm/month; P ≤ 0.035). The observed root resorption was significantly less in the LG (P ≤ 0.05) with comparable pain scores in both groups.

Conclusions: Within the constraints of the parameters of the LLLT used in the current study and despite the statistically significant results on the rate of en masse retraction and the associated root resorption, LLLT did not demonstrate a clinically relevant effect that justifies its use to enhance en masse retraction.

Name of the registry: Clinicaltrials.gov TRIAL REGISTRATION NUMBER: NCT05183451 DATE OF REGISTRATION: January 10, 2022, "Retrospectively registered" URL OF TRIAL REGISTRY RECORD: https://www.

Clinicaltrials: gov/study/NCT05183451.

Abstract Image

低强度激光疗法对双颌牙槽骨前突女性整体后缩的影响:单中心随机临床试验。
背景:近十年来,加速牙齿移动的研究备受关注。本研究旨在评估低强度激光疗法(LLLT)对患有双颌牙槽前突的成年女性上前牙整体后缩的影响:在这项双臂平行试验中,36 名患有双颌牙槽骨前突的女性被随机分为两组。合格标准包括Ⅰ类角臼齿关系、良好的全身和口腔健康状况以及无全身性疾病或综合征。上下牙弓均使用四个临时固位装置(TAD)进行固位。一根 0.019×0.025 英寸的带卷曲钩的不锈钢丝被插入上颌犬齿的远端。拔出第一前磨牙后,使用镍钛(NiTi)封闭螺旋弹簧(200 克/侧)进行整体牵引。激光组(LG)在拔牙后的第 0、3、7 和 14 天进行上前牙牵引,同时使用 LLLT,然后每两周重复一次,直到牵引结束。非激光组(NLG)在不使用 LLLT 的情况下完成牵引。拔牙前和拔牙结束时的数字化模型和锥形束计算机断层扫描(CBCT)扫描结果可提供有关拔牙率、第一磨牙和前牙位置变化的数据。使用视觉模拟量表(VAS)和CBCT扫描分别评估了治疗相关的疼痛和牙根吸收情况:结果:四名患者在随访前退出。LG和NLG的牙根回缩持续时间分别为10.125 ± 2.876个月和13.643 ± 3.455个月。与 NLG(0.526 ± 0.268 mm/月;P ≤ 0.035)相比,LG 的整体退缩速度(0.833 ± 0.371 mm/月)明显快于 NLG(0.526 ± 0.268 mm/月;P ≤ 0.035)。观察到的牙根吸收在 LG 组明显较少(P ≤ 0.05),两组的疼痛评分相当:结论:在当前研究中使用的 LLLT 参数的限制下,尽管对全口义齿牵引率和相关的牙根吸收有显著的统计学结果,但 LLLT 并未显示出与临床相关的效果,因此没有理由使用 LLLT 来增强全口义齿牵引:Clinicaltrials.gov 试验注册编号:NCT05183451 注册日期:2022 年 1 月 10 日,"追溯注册" 试验注册记录网址:https://www.Clinicaltrials: gov/study/NCT05183451。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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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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