@article{oai:tmdu.repo.nii.ac.jp:00000260,
 author = {桐本, 博章 and Kirimoto, Hiroaki and 関, 洋一郎 and Seki, Yoichiro and 相馬, 邦道 and Soma, Kunimichi},
 issue = {1},
 journal = {Journal of Medical and Dental Sciences, Journal of medical and dental sciences},
 month = {Mar},
 note = {The purpose of this study was to examine how the periodontal sensory inputs of working-side maxillary posterior teeth affect nonworking-side anterior temporalis activities at the starting jaw position of the slow-closing phase in mastication. Six subjects with normal occlusion were asked to bite an incisal block to maintain the initial jaw position of the slow-closing phase and to generate jawclosing muscle activities. Bipolar needle electrodes were inserted into the nonworking-side anterior temporalis to record spike discharges from a single motor unit. To stimulate the periodontal mechanoreceptors, mechanical stimulations were applied to the working-side maxillary first molar, first and second premolar in buccopalatal, palato-buccal, and apical directions. Meanwhile, we examined changes in the discharge frequency of the motor unit activities of the nonworking-side anterior temporalis. We found that the palato-buccal stimulation to the working-side maxillary first molar and the apical stimulation to each working-side maxillary posterior tooth significantly increased the nonworking-side anterior temporalis activities; however, palato-buccal and bucco-palatal stimulations applied to the first and second premolar didn't. Thus, differential responses of the nonworking-side anterior temporalis are found by the working-side maxillary first molar and premolar stimulations. These findings may be due to some differences in function between molar and premolar.},
 pages = {47--52},
 volume = {50},
 year = {2003}
}