Improvement in the transverse dimension of dental arches in mixed dentition patients with posterior crossbite treated with functional therapy.

IF 3 2区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Angle Orthodontist Pub Date : 2023-01-31 DOI:10.2319/091622-647.1

Alessandro Tortarolo, Laura di Benedetto, Ingrid Tonni, Michele Tepedino, Teresa Vallelonga, Maria Grazia Piancino

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引用次数: 0

Abstract

Objectives: To evaluate the effects of treatment of posterior crossbite (PXB) in the mixed dentition with the Function Generating Bite (FGB) appliance on the transverse dimension of the dental arches.

Materials and methods: This study included 84 PXB patients (female = 46; male = 38; mean age, 8.2 ± 1.8 years) and 69 control (C) patients (female = 31; male = 38; mean age, 8.9 ± 1.4 years). Measurements were taken with digital calipers on maxillary and mandibular study casts before (T0) and after (T1) treatment for the following measures: intermolar (IMD), intermolar gingival (IMGD), intercanine (ICD), and intercanine gingival distances (ICGD).

Results: At T0, there was a significant difference in all maxillary measurements between the PXB and C groups (P < .001), reflecting maxillary hypoplasia in PXB patients. At T1, there was no difference between the groups. In PXB patients, the mean increase between T0 and T1 for IMD was 4.34 ± 2.42 mm; this difference measured 3.51 ± 2.19 mm for IMGD, 2.78 ± 2.37 mm for ICS, and 1.89 ± 1.7 mm for ICGD. There was no significant difference in mandibular measurements between groups at T0 and T1.

Conclusions: Functional therapy with FGB is effective in significantly increasing the transverse dimension of the maxillary dental arch in PXB patients. Considering its efficacy in treating masticatory dysfunction, FGB may be considered a good treatment option for the correction of PXB in growing children.

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通过功能疗法改善混合牙列后交叉咬合患者的牙弓横向尺寸。

目的评估使用功能生成咬合（FGB）矫治器治疗混合牙列后交叉咬合（PXB）对牙弓横向尺寸的影响：这项研究包括 84 名 PXB 患者（女 = 46；男 = 38；平均年龄为 8.2 ± 1.8 岁）和 69 名对照组（C）患者（女 = 31；男 = 38；平均年龄为 8.9 ± 1.4 岁）。在治疗前（T0）和治疗后（T1），用数字卡尺在上颌和下颌研究模型上测量下列指标：磨牙间距（IMD）、磨牙龈间距（IMGD）、龈间距（ICD）和龈间距（ICGD）：T0时，PXB组和C组的所有上颌骨测量值均有显著差异（P < .001），反映出PXB患者上颌骨发育不良。在 T1 阶段，两组之间没有差异。在 PXB 患者中，IMD 在 T0 和 T1 之间的平均增幅为 4.34 ± 2.42 毫米；IMGD 的这一差异为 3.51 ± 2.19 毫米，ICS 为 2.78 ± 2.37 毫米，ICGD 为 1.89 ± 1.7 毫米。各组在 T0 和 T1 时的下颌骨测量值无明显差异：结论：FGB 功能性治疗能有效地显著增加 PXB 患者上颌牙弓的横向尺寸。考虑到 FGB 在治疗咀嚼功能障碍方面的疗效，FGB 可被视为矫正生长期儿童 PXB 的良好治疗方案。

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

Angle Orthodontist 医学-牙科与口腔外科

CiteScore

6.40

自引率

5.90%

发文量

审稿时长

3 months

期刊介绍： The Angle Orthodontist is the official publication of the Edward H. Angle Society of Orthodontists and is published bimonthly in January, March, May, July, September and November by The EH Angle Education and Research Foundation Inc. The Angle Orthodontist is the only major journal in orthodontics with a non-commercial, non-profit publisher -- The E. H. Angle Education and Research Foundation. We value our freedom to operate exclusively in the best interests of our readers and authors. Our website www.angle.org is completely free and open to all visitors.