Taşpinar Fatma, Uçüncü Harun, Bishara Samir E
Department of Orthodontics, Faculty of Dentistry, Atatürk University, Erzurum, Turkey.
Angle Orthod. 2003 Dec;73(6):669-73. doi: 10.1043/0003-3219(2003)073<0669:RMEACH>2.0.CO;2.
The purpose of this study was to evaluate the effects of rapid maxillary expansion (RME) on conductive hearing loss in 35 subjects (21 girls and 14 boys) with an average age of 14 years 6 months. All patients had maxillary constriction with a high palatal vault and a conductive hearing loss. Pure-tone audiometric records were used to determine the hearing levels at four time intervals, namely, before RME, after sufficient midpalatal suture opening was obtained (mean: 18 days), after the retention period (mean: six months), and a final set two years after the retention period. Records were evaluated by the same otolaryngologist. Analysis of variance was used to assess the changes in the hearing level and the air-bone gap. Descriptive statistics were calculated for each subject at each period. The results indicated that significant changes occurred in both the hearing levels and air-bone gaps in both timing and frequency after the active treatment period (P < .001). For most patients (74%), these improvements were maintained two years after active treatment.
本研究的目的是评估快速上颌扩弓（RME）对35名平均年龄为14岁6个月的受试者（21名女孩和14名男孩）传导性听力损失的影响。所有患者均有上颌狭窄、高腭穹窿和传导性听力损失。使用纯音听力计记录在四个时间间隔的听力水平，即RME前、获得足够的腭中缝打开后（平均：18天）、保持期后（平均：6个月）以及保持期后两年的最后一组记录。记录由同一位耳鼻喉科医生评估。采用方差分析评估听力水平和气骨间隙的变化。对每个受试者在每个时期进行描述性统计。结果表明，在积极治疗期后，听力水平和气骨间隙在时间和频率上均发生了显著变化（P <.001）。对于大多数患者（74%），这些改善在积极治疗后两年仍得以维持。
