Abstract
For measuring the moisture degree of the oral mucosa using an oral moisture checking device, we examined different experimental conditions to determine a measurement method with less errors. In experiment 1, we measured the moisture degree of the oral mucosa of seven healthy adults without hyposalivation for seven days at the fixed time and analyzed the results with cosinor method. Correlation coefficients of moisture of tongue were within 0.01 to 0.35, and of buccal mucosa were within 0.01 to 0.54. It was not said clearly that regularity existed in the circadian rhythm of the moisture degree of the oral mucosa. In experiment 2, we measured the moisture degree of tongue and buccal mucosa in five conditions that was thought that influenced the moisture of the oral mucosa and analyzed the temporal variation with Friedman's test and Dunnett's test. The results showed no significant differences between the moisture degree of the pre-experiment and the moisture degree of the experiment 5 minutes later. As measuring the moisture degree of the oral mucosa of healthy adults without hyposalivation using an oral moisture checking device, We thought that more reproducible result will be gotten by setting physical and mental resting state to the subjects around 5 minutes.
