Department of Clinics and Preventive Dentistry, Dental School, Federal University of Pernambuco, Recife, PE, Brazil.
Braz Oral Res. 2011 Jul-Aug;25(4):351-6. doi: 10.1590/s1806-83242011005000013. Epub 2011 Jul 8.
The aim of this study was to evaluate whether patients with hyposalivation present damaged mastication or mandibular movements during speech. Forty subjects composed 2 groups: control and hyposalivation. Masticatory performance was assessed with a silicon-based artificial material and a 10-sieve method. Mandibular movements during speech were observed with a 3D jaw-tracking device. Data were analyzed with Student's t-test or the Mann-Whitney method (P < 0.05). The masticatory performance (mm) of control and hyposalivation were 4.40 ± 0.62 and 4.74 ± 1.34, respectively. Outcomes for speech movements (mm) were as follows: maximum vertical opening amplitude (10.8 ± 4.2; 9.9 ± 2.7) and displacements to the right (1.0 ± 0.8; 0.5 ± 0.6), left (1.8 ± 1.4; 2.3 ± 1.2), or anterior-posterior (2.8 ± 1.1; 2.9 ± 1.0) for control and hyposalivation, respectively. No statistical difference was found between groups for any variable. The results indicated that hyposalivation did not affect masticatory performance or mandibular movements during speech.
本研究旨在评估口干症患者在言语时是否存在咀嚼或下颌运动受损。40 名受试者分为两组：对照组和口干症组。使用硅基人工材料和 10 筛法评估咀嚼性能。使用 3D 下颌跟踪装置观察言语时的下颌运动。使用 Student's t 检验或 Mann-Whitney 方法进行数据分析（P < 0.05）。对照组和口干症组的咀嚼性能（mm）分别为 4.40 ± 0.62 和 4.74 ± 1.34。言语运动的结果（mm）如下：最大垂直开口幅度（10.8 ± 4.2；9.9 ± 2.7）以及向右（1.0 ± 0.8；0.5 ± 0.6）、向左（1.8 ± 1.4；2.3 ± 1.2）或前后（2.8 ± 1.1；2.9 ± 1.0）的位移。对于对照组和口干症组，任何变量在组间均无统计学差异。结果表明，口干症并不影响咀嚼性能或言语时的下颌运动。
