Study on the Measurement Condition of Oral Moisture Checking Device (Mucus

The aim of this study was to investigate the influence of the measurement condition on the measurement value of an oral moisture checking device. Healthy adults were enrolled to investigate the influence of repeating measurement, rinsing, and measurement time. Oral moisture was measured at the lingual (LM) and buccal mucosa (BM) using the oral moisture checking device. The statistical analysis (Friedman test) was performed to compare the moisture of 3 times' repeating measurement, and the moisture just after rinsing, 3, and 5 minutes after rinsing, and the moisture according to measurement time (at 9:00, and 11:00 a.m., and at 1:00, 3:00, and 5:00 p.m.). As the results of the repeating measurement, there were significant difference between the measurement value at LM of the first time and third time measurement, second time and third time measurement (p<0.01), and the first time and second time measurement (p<0.05). As the results of rinsing, statistically significant difference was found between the measurement value at LM just after rinsing and 5 minutes after rinsing, and 3 minutes after rinsing and 5 minutes after rinsing (p<0.01). There was not significant difference among the measurement time. The results of this study demonstrated that the measurement value increased at LM by repeating measurement and increased at 5 minutes after rinsing, and wasn't influenced by measurement time. It was suggested that practicing the measurement using an oral moisture checking device was necessary, and the measurement could be performed at any time.