Effects of Recent/Healed Post-Extraction Protocols on Incisor and Canine Alignment During Fixed Orthodontic Appliance Therapy.

IF 0.8 Q4 DENTISTRY, ORAL SURGERY & MEDICINE
Adedayo Ayomide Olabintan, Olayinka Donald Otuyemi, Kikelomo Adebanke Kolawole
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引用次数: 1

Abstract

Objective: The purpose of this study was to determine the effects of recent/healed post-premolar extraction protocol, gender, age, and dental arch on incisor and canine alignment during fixed orthodontic appliance therapy.

Methods: The study sample consisted of 50 dental arches of patients undergoing fixed orthodontic appliance therapy. The arches were randomized into an equal number of recent and healed extraction groups. The orthodontic setup was instituted within 3-7 days and 5-6 weeks following first premolar teeth extractions in the recent and healed extraction groups, respectively. Orthodontic tooth alignment was carried out using 0.016-inch NiTi wires for 16 weeks. Study casts were made at baseline, 4, 8, 12-, and 16-week follow-up treatment. Little's Irregularity Index was used to assess orthodontic tooth alignment. Mann-Whitney U test was used to compare the alignment rates between groups, and multiple linear regression was used to predict the relationship of groups and sociodemographic factors to alignment rate. The statistical significance level was set at P < .05.

Results: The mean daily incisor and canine alignment rates in the recent and healed extraction cases were 0.13 mm and 0.11 mm, respectively (P = .332), 0.12 mm in both males and females (P = .827), and 0.13 mm and 0.12 mm in the maxilla and mandible, respec- tively (P = .534). There was however a significant difference in the mean daily alignment rate between adolescents (0.15 mm) and adults (0.10 mm) (P = .019).

Conclusion: The rate of incisor and canine alignment was not affected significantly by recent/healed post-extraction protocol, gen- der, and dental arch. However, the rate was significantly faster in adolescents.

Abstract Image

在固定矫治器治疗中,近期/愈合拔牙后方案对切牙和犬齿对齐的影响。
目的:本研究的目的是确定最近/愈合后前磨牙拔牙方案,性别,年龄和牙弓对固定正畸矫治器治疗中切牙和犬齿对齐的影响。方法:以固定矫治器治疗患者的50根牙弓为研究对象。将牙弓随机分为相同数量的近期拔牙组和愈合拔牙组。拔除第一前磨牙后3-7天和5-6周,分别在近期拔除组和愈合拔除组进行正畸设置。使用0.016英寸镍钛金属丝进行正畸牙对准,持续16周。在基线、4周、8周、12周和16周的随访治疗中制作研究模型。Little's不规则指数用于评估正畸牙齿排列。采用Mann-Whitney U检验比较组间对齐率,采用多元线性回归预测群体和社会人口学因素对对齐率的影响关系。差异有统计学意义,P < 0.05。结果:近期拔牙和愈合拔牙患者日均切牙和犬齿对中率分别为0.13 mm和0.11 mm (P = 0.332),男性和女性日均切牙和犬齿对中率分别为0.12 mm (P = 0.827),上颌和下颌骨日均切牙和犬齿对中率分别为0.13 mm和0.12 mm (P = 0.534)。然而,青少年(0.15 mm)和成人(0.10 mm)的平均每日对齐率有显著差异(P = 0.019)。结论:拔牙后近期/愈合方案、年龄和牙弓对切牙和犬齿对齐率无显著影响。然而,这一比率在青少年中明显更快。
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
Turkish Journal of Orthodontics
Turkish Journal of Orthodontics Dentistry-Orthodontics
CiteScore
2.10
自引率
9.10%
发文量
34
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