Jalaly Tahereh, Ahrari Farzaneh, Amini Foroozandeh
Associate Professor, Department of Orthodontics, Faculty of Dentistry and Dental Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
J Dent Res Dent Clin Dent Prospects. 2009 Summer;3(3):73-7. doi: 10.5681/joddd.2009.019. Epub 2009 Sep 16.
There is no consensus about the effect of tongue thrusting on incisor position. The purpose of this study was to evaluate the position of anterior teeth in growing children with tongue thrust swallowing.
In the present study 193 subjects with an age range of 9 to 13 years participated. All the patients were examined by a trained investigator and those having tongue thrust swallowing were selected and the position of their anterior teeth was compared with a control group consisting of 36 subjects with normal occlusion. Data was analyzed by independent sample t-test.
Among the 193 students who were examined in this study, 10 cases (5%) were diagnosed to be tongue thrusters. Overjet was significantly increased in tongue thrust individuals (P < 0.05), while the other variables were not statistically different from the controls (P > 0.05).
The results indicated that tongue thrust may have an environmental effect on dentofacial structures. Considering the high incidence of tongue thrust in orthodontic patients, it is suggested that dental practitioners observe patients of all ages and those in all stages of orthodontic treatment for evidence of tongue thrust swallowing.
关于吐舌吞咽对切牙位置的影响尚无定论。本研究的目的是评估存在吐舌吞咽习惯的生长发育期儿童的前牙位置。
本研究纳入了193名年龄在9至13岁之间的受试者。所有患者均由一名经过培训的研究人员进行检查，选取存在吐舌吞咽习惯的患者，并将他们前牙的位置与由36名咬合正常的受试者组成的对照组进行比较。数据采用独立样本t检验进行分析。
在本研究检查的193名学生中，有10例（5%）被诊断为吐舌者。吐舌者的覆盖明显增加（P < 0.05），而其他变量与对照组相比无统计学差异（P > 0.05）。
结果表明吐舌可能对牙颌面结构产生环境影响。鉴于正畸患者中吐舌的发生率较高，建议牙科医生观察所有年龄段以及正畸治疗各阶段的患者是否存在吐舌吞咽的迹象。
