Rantonen P J, Meurman J H
Department of Oral and Dental Diseases, Faculty of Medicine, University of Kuopio, Finland.
Acta Odontol Scand. 1998 Aug;56(4):210-4. doi: 10.1080/00016359850142817.
This study investigates within-subject variations and associations of salivary viscosities and flow rates in a test panel of healthy adults. After several practice sessions, unstimulated and stimulated whole saliva samples were collected 5 times daily (at 0800, 1100, 1400, 1700, and 2000 h) from 30 university students. There was a significant within-subject variation in viscosity and flow rate of unstimulated saliva (P<0.001). Intra-item correlations were significantly different for salivary flow rates (r= 0.82 for unstimulated, r= 0.88 for stimulated, P< 0.001) and viscosity of unstimulated saliva (r= 0.54, P< 0.05), but viscosity of stimulated saliva was different in this respect. Our results indicate that there is a significant within-subject variation in viscosity of unstimulated saliva.
本研究调查了健康成年人测试组内唾液粘度和流速的个体内差异及相关性。经过几次练习后，每天5次（08:00、11:00、14:00、17:00和20:00）从30名大学生中采集非刺激性和刺激性全唾液样本。非刺激性唾液的粘度和流速存在显著的个体内差异（P<0.001）。唾液流速（非刺激性r = 0.82，刺激性r = 0.88，P<0.001）和非刺激性唾液粘度（r = 0.54，P<0.05）的项目内相关性存在显著差异，但刺激性唾液粘度在这方面有所不同。我们的结果表明，非刺激性唾液粘度存在显著的个体内差异。
