Cheng Chia-Fen, Peng Chien-Lun, Chiou Hung-Yi, Tsai Chi-Yang
Department of Orthodontics, Graduate Institute of Oral Rehabilitation, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan.
Am J Orthod Dentofacial Orthop. 2002 Nov;122(5):491-9. doi: 10.1067/mod.2002.128865.
To understand the role of the tongue in the development of occlusion, we examined the relationship between tongue movements during swallowing and dentofacial morphology with ultrasonography, cephalometric radiography, and dental casts. Duration, magnitude, and speed of tongue movements were measured in 112 healthy adult volunteers and compared with their dentofacial morphology with a simple correlation analysis. The results showed that the movements of tongue during swallowing are related to dentofacial morphology, especially in the motion magnitude of the early final phase (phase IIIa), but that few correlations are found when analyzing the duration and the speed of swallowing. The results also showed that the intermaxillary vertical dimension is significantly and positively correlated with the motion magnitude of the tongue movements. Furthermore, we found that arch length increased with prolonged duration of swallowing. This study showed that the computer-aided B+M mode of ultrasonography combined with the cushion-scanning technique is a valuable tool for investigating the relationship between tongue movements during swallowing and dentofacial morphology.
为了解舌头在咬合发育中的作用，我们通过超声检查、头影测量X线摄影和牙模，研究了吞咽过程中舌头运动与牙颌面形态之间的关系。对112名健康成年志愿者的舌头运动持续时间、幅度和速度进行了测量，并通过简单的相关性分析将其与他们的牙颌面形态进行比较。结果表明，吞咽过程中舌头的运动与牙颌面形态有关，特别是在早期终末阶段（IIIa期）的运动幅度方面，但在分析吞咽的持续时间和速度时，发现的相关性较少。结果还表明，颌间垂直距离与舌头运动的幅度显著正相关。此外，我们发现牙弓长度随着吞咽持续时间的延长而增加。本研究表明，计算机辅助的超声B+M模式结合缓冲扫描技术是研究吞咽过程中舌头运动与牙颌面形态之间关系的有价值工具。
