Relationship between oral sensitivity and masticatory performance

被引:54
作者
Engelen, L [1 ]
van der Bilt, A
Bosman, F
机构
[1] Wageningen Ctr Food Sci, NL-6700 AN Wageningen, Netherlands
[2] Univ Med Ctr Utrecht, Dept Head & Neck, Oral Physiol Grp, NL-3508 AB Utrecht, Netherlands
关键词
oral sensitivity; human; size perception; topical anesthesia; masticatory performance;
D O I
10.1177/154405910408300507
中图分类号
R78 [口腔科学];
学科分类号
1003 [口腔医学];
摘要
The size of a bolus determines how it will be manipulated in the mouth and swallowed. We hypothesized that mucosal sensitivity would be important for masticatory function. The accuracy of solid object size perception, spatial acuity, and food particle size reduction during mastication were measured in 22 healthy adults with/without topical anesthesia of their oral mucosa. Topical anesthesia had no effect on the perception of sphere sizes, but significantly reduced spatial sensitivity. Without anesthesia, there was a correlation between an individual's ability to perceive the sizes of steel spheres (diameter, 4-9 mm) and the sizes of food particles chewed for 15 cycles and at swallowing. There was no correlation between spatial sensitivity and food particle size. We suggest that the stimuli used to test two-point discrimination stimulates only superficial receptors, which involve light touch and are easily anesthetized, while the spheres might excite more deeply-set receptors. The latter appear to be more important for masticatory performance and swallowing.
引用
收藏
页码:388 / 392
页数:5
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