Root resorption in relation to a modified piezocision technique.

Juliana Gómez Arana, D. Rey, H. Rios, María Antonia Alvarez, L. Cevidanes, A. Ruellas, J. Aristizábal
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引用次数: 1

Abstract

OBJECTIVES To evaluate root resorption of lower incisors and canines quantitatively in a group of patients who underwent orthodontic treatment with piezocision and/or a collagen reinforcement technique with a fully resorbable three-dimensional (3D) collagen xenograft matrix compared with a control group. MATERIALS AND METHODS The study sample of this secondary analysis consisted of 32 periodontally healthy patients with angle Class I malocclusion or mild Class II or III malocclusion and moderate irregularity index scores who underwent orthodontic treatment and had before (T0) and after treatment (T1) cone-beam computed tomography scans. Root resorption of lower incisors and canines was assessed quantitatively in the following four groups: the control group received orthodontic treatment without piezocision, experimental group 1 received orthodontic treatment with piezocision, experimental group 2 received orthodontic treatment with piezocision and a 3D collagen matrix, and experimental group 3 received orthodontic treatment with a 3D collagen matrix. RESULTS An overall statistically significant decrease in root length from T0 to T1 for all groups was observed (P < .05). However, there was no significant difference among the groups in the amount of root length decrease from T0 to T1. CONCLUSIONS Orthodontic treatment combined with piezocision does not increase the risk of root resorption of lower incisors and canines when compared with orthodontic treatment without acceleration techniques. More studies with larger samples should be undertaken to confirm these results.
根吸收与改良压切术的关系。
目的与对照组相比,定量评估采用压切和/或胶原增强技术进行正畸治疗的患者下门牙和犬根的吸收情况。材料与方法本二次分析的研究样本包括32例牙周健康患者,患有角I类错牙合或轻度II或III类错牙合,中度不规则指数评分,接受正畸治疗,并在治疗前(T0)和治疗后(T1)进行锥形束计算机断层扫描。定量评估下门牙和犬根吸收情况,分为四组:对照组采用不做压切的正畸治疗,实验1组采用压切正畸治疗,实验2组采用压切+ 3D胶原基质正畸治疗,实验3组采用3D胶原基质正畸治疗。结果从T0到T1,各组根长均显著减少(P < 0.05)。但从T0到T1,各组间根长减少量无显著差异。结论与不加加速技术的正畸治疗相比,压切联合正畸治疗不会增加下门牙和犬根吸收的风险。应该进行更多的大样本研究来证实这些结果。
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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