Purpose：The purpose of this study was to measure oral moisture over time after oral hygiene management in parenteral patients and to clarify the relationship between general conditions and medications taken and change of oral moisture after oral hygiene management.

　Subjects：The subjects were 103 patients with open mouth at rest and dry mouth（55 males and 48 females, mean age 84.5±8.6 years）who were admitted to an acute care general hospital in Kitakyushu City from September 2020 to March 2021.

　Method：Using a moisture-checking device（Mucus^®）, oral moisture was measured before oral hygiene management, immediately after application of oral moisturizing agent, 1 hour after application, 2 hours after application, and 3 hours after application. The subjects’basic information was extracted from medical records. In addition to evaluating oral moisture content over time, we investigated factors related to changes in oral moisture content using binomial logistic analysis.

　Results：In parenteral patients, oral moisture after oral hygiene management decreased over time. Binomial logistic analysis indicated that diuretics（p＝0.012）and expectorants（p＝0.033）were factors that decreased oral moisture.

　Conclusion：It is necessary to consider frequent use of oral moisturizing agents even after oral hygiene management and to examine the frequency of application in consideration of medications taken in parenteral patients.

　Purpose：To examine the relationship between the severity of dysphagia and the oral environment in recovering stroke patients.

　Methods：The subjects were 299 stroke patients admitted to a convalescent rehabilitation ward from March 1, 2016 to January 31, 2020. The survey items included the patients’age, gender, stroke type, Food Intake LEVEL Scale（FILS）, Functional Independence Measure（FIM）, body mass index（BMI）, serum albumin（Alb）, and Oral Health Assessment Tool（OHAT）at admission. The patients were divided into severe（FILS＜7）and mild dysphagia groups according to their FILS at admission.

　Results：Patients with severe dysphagia had significantly higher OHAT scores and significantly lower FIM score and Alb than patients with mild dysphagia at admission（p＜0.05）, and patients with severe dysphagia had significantly higher lip, tongue, gingiva/mucosa, saliva, and oral cleanliness scores than patients with mild dysphagia（p＜0.05）. A multiple logistic regression analysis revealed that the OHAT, FIM score and Alb were factors associated with the severity of dysphasia at admission, with an odds ratio of 5.170（95% confidence interval：2.239-11.941）for OHAT and 9.806（95% confidence interval：4.164-23.095）for FIM. In each OHAT score at admission, the lip and tongue values were associated with the severity of dysphagia, with odds ratios of 7.846（95% confidence interval：3.771-16.325）for the lips and 5.751（95% confidence interval：2.850-11.605）for the tongue.

　Conclusion：The results of this study suggest that factors associated with the severity of dysphagia in patients recovering from stroke, including the FIM and oral environment at admission, were associated with the severity of dysphagia in patients with stroke in the recovery period.

　Objective：In our department, we have been actively examining and managing oral hypofunction for the past 4.5 years from April 2018 to September 2022. Therefore, we aimed to obtain basic data to enhance the examination and management of oral hypofunction by comparing the statistics by social medical practice and the implementation status in our department.

　Subjects and Methods：Statistics by social medical practice published in June 2019-2022 and the status of examination and management of oral hypofunction in our department since April 2018 were investigated.

　Results：Except for the occlusal pressure test, the number of cases and the implementation rate for patients over 65 years old increased. However, the statistics by social medical practice showed a smaller increase in 2021（approximately 20%）compared to the increase in 2020（approximately double）; the percentage in the number of first-time patients and first- and second-time patients over 65 years old was slight. In our department, the number of patients increased except for the occlusal pressure test, which decreased slightly in 2020. In 2022, the ratio of masticatory capacity test（12.8%）to the number of first-time patients was 29 times higher than the statistics by social medical practice, tongue pressure measurement（14.9%）was 14 times higher, and oral function management（20.4%）was about 7 times higher than that of the statistics by social medical practice. The number of repeated examination and management for a single patient in our department was one or two times in most cases.

　Discussion：Examination and management of oral hypofunction are becoming more widespread. However, even in our department, where the implementation rate is considerably higher than in the statistics by social medical practice, it is still considerably lower than the prevalence of oral hypofunction.

　Conclusion：Although the rate of examination and management increased 4.5 years after gaining coverage by medical insurance, the rate of increase has been declining, indicating that it is still small compared to the prevalence of oral hypofunction and that ongoing examination and management is inadequate.

　Objective：Hospital dentistry plays a variety of roles and can also contribute to gerodontology；however, it is not widely available. The purpose of this study was to promote hospital dentistry by clarifying its perception among hospital directors using a questionnaire survey.

　Methods：A questionnaire survey on hospital dentistry was conducted between March 7 and 25, 2022. The respondents were directors of hospitals that had a full-time affiliated dentist who was a member of the Japanese Society of Gerodontology. The questionnaire consisted of 14 questions concerning hospital dentistry including the most desired hospital dental services, the most expected benefit of hospital dental services, areas for improvement, and the necessity of hospital dentistry.

　Results：A total of 232 hospital directors were surveyed. Responses were collected from 86（37.1％）. The provision of general dental treatment and oral hygiene management of medical inpatients were the most desired hospital dental services. The most expected benefit of hospital dentistry was its contribution to improving the quality of medical care, while profitability was the most desired improvement（25.6％）. The median need of dentistry was 10（range：8-10；scoring：0 = not necessary at all to 10 = essential）.

　Conclusion：Many of the respondents had a favorable opinion of hospital dentistry and almost all of them believed that it is necessary. Since directors of hospitals expect hospital dentistry to provide general dental treatment and oral hygiene management of medical inpatients, it is necessary to incorporate it as a hospital service, improve its profitability, and demonstrate its effectiveness in order to promote hospital dentistry.