Bicakci A Altug, Agar Ugur, Sökücü Oral, Babacan Hasan, Doruk Cenk
Department of Orthodontics, Faculty of Dentistry, Cumhuriyet University, Sivas, Turkey.
Angle Orthod. 2005 Jan;75(1):1-6. doi: 10.1043/0003-3219(2005)075<0001:NACDTR>2.0.CO;2.
The purpose of this study was to evaluate the effect of rapid maxillary expansion (RME) on nasal minimum cross-sectional area (MCA) using acoustic rhinometry (AR) in two groups of subjects who were treated before and after the pubertal growth spurt. The sample consisted of 29 patients with maxillary constriction and a control sample of 15 subjects. Both samples were divided into two groups according to individual skeletal maturation as assessed by the cervical vertebral maturation (CVM) method. Group I T (early-treated) consisted of 16 patients (eight girls and eight boys). Group I C (early-control) consisted of eight patients, and both groups had not reached the pubertal peak (CVM Stage 1-3). Group II T (late-treated) consisted of 13 patients (eight girls and five boys). Group II C (late-control) consisted of seven patients, and both groups were at a stage during or after the pubertal peak (CVM Stage 4-6). AR records were obtained for each treated subject before treatment (T1), after expansion (T2), and immediately after a three-month retention period (T3); only T1 and T3 records were obtained for controls. The overall increase in MCA was significantly greater in the early- and late-treated groups (group I T, group II T) as compared with the early and late controls. (group I C, group II C) (P < .05). The results of the present study suggest that even the overall (T1-T3) increase for MCA in group I T is greater (0.34 mm) than the increase for MCA in group II T (0.19 mm), but the difference was not significant (P > .05).
本研究的目的是使用鼻声反射（AR）评估快速上颌扩弓（RME）对两组在青春期生长突增前后接受治疗的受试者鼻腔最小横截面积（MCA）的影响。样本包括29例上颌缩窄患者和15例受试者的对照样本。根据通过颈椎成熟度（CVM）方法评估的个体骨骼成熟度，将两个样本均分为两组。I T组（早期治疗组）由16例患者组成（8名女孩和8名男孩）。I C组（早期对照组）由8例患者组成，两组均未达到青春期高峰（CVM 1-3期）。II T组（晚期治疗组）由13例患者组成（8名女孩和5名男孩）。II C组（晚期对照组）由7例患者组成，两组均处于青春期高峰期间或之后的阶段（CVM 4-6期）。在治疗前（T1）、扩弓后（T2）以及三个月保持期结束后立即（T3）为每位接受治疗的受试者获取AR记录；仅为对照组获取T1和T3记录。与早期和晚期对照组（I C组、II C组）相比，早期和晚期治疗组（I T组、II T组）的MCA总体增加显著更大（P < .05）。本研究结果表明，即使I T组MCA的总体（T1-T3）增加（0.34 mm）大于II T组MCA的增加（0.19 mm），但差异不显著（P > .05）。
