Henrikson T, Ekberg E C, Nilner M
Department of Orthodontics, Center for Oral Health Sciences, Malmö, Sweden.
Int J Prosthodont. 1998 Mar-Apr;11(2):125-32.
This study investigated the masticatory efficiency and ability in girls with normal occlusion and Class II malocclusion. Furthermore, it investigated the association between masticatory efficiency and ability on one hand and signs and symptoms of temporomandibular disorders (TMD) on the other hand.
A total of 183 girls, aged 11 to 15 years, were included in this study. Sixty subjects had normal occlusion and 123 subjects had Class II malocclusion. The examination included registration of signs and symptoms of TMD. Masticatory efficiency was evaluated with a masticatory efficiency test, while masticatory ability was self-assessed on a visual analog scale.
Subjects with normal occlusion presented statistically significantly better masticatory efficiency and ability than subjects with Class II malocclusion. Thirty percent of the variation in masticatory efficiency was explained in a multiple regression analysis. Few occlusal contacts and a large overjet predicted a reduced masticatory efficiency. Subjects who reported frequent temporomandibular joint clicking and subjects who estimated their overall symptoms of TMD as moderate or severe also had reduced masticatory efficiency.
The authors concluded that masticatory efficiency and ability were partly dependent on the occlusion and that symptoms of TMD influenced the masticatory efficiency and ability.
本研究调查了正常咬合和安氏II类错牙合女童的咀嚼效率和咀嚼能力。此外，还研究了咀嚼效率和能力与颞下颌关节紊乱病（TMD）体征和症状之间的关联。
本研究共纳入183名11至15岁的女童。其中60名受试者咬合正常，123名受试者为安氏II类错牙合。检查包括记录TMD的体征和症状。咀嚼效率通过咀嚼效率测试进行评估，而咀嚼能力通过视觉模拟量表进行自我评估。
咬合正常的受试者的咀嚼效率和能力在统计学上显著优于安氏II类错牙合的受试者。多元回归分析解释了咀嚼效率30%的变异。牙合接触少和覆盖大预示着咀嚼效率降低。报告颞下颌关节频繁弹响的受试者以及将其TMD总体症状评估为中度或重度的受试者的咀嚼效率也较低。
作者得出结论，咀嚼效率和能力部分取决于咬合，且TMD症状会影响咀嚼效率和能力。
