Publications by authors named "O Komiyama"
Background: Oral food processing is an important part of daily food intake. A major part of this process is mastication, which prepares a bolus of food for swallowing by mechanically crushing and grinding ingested food between the teeth using rhythmic movements. Masticatory dysfunction is common in the elderly and in some neurological disorders and can have serious negative health consequences.
View Article and Find Full Text PDFThere is a growing need for a mouthguard sheet material with higher shock absorption and dispersion capacity than those obtained by conventional materials. A five-layer mouthguard sheet material was previously developed using laminated ethylene vinyl acetate and polyolefin copolymer resin. In this study, the shock absorption capacity and dispersion capability of the new sheet material were investigated and compared with those of other materials.
View Article and Find Full Text PDFObjectives: Standardized bite training is required to prevent oral hypofunction in elderly individuals. We aimed to compare masticatory muscle activity between 24 young adults and 16 pre-elderly individuals during a biting task using a novel standardized bite device (BD).
Methods: The BD was made of silicone rubber and included a high-force or low-force plate spring or no plate spring (dummy).
Article Synopsis
- A public workshop took place in Japan to discuss the ICH E17 guideline aimed at improving how pharmaceuticals are tested and understood across different populations.
- Key topics included examining the intrinsic and extrinsic ethnic factors affecting treatment results and the importance of a comprehensive assessment of treatment consistency.
- The workshop emphasized the need for open communication about these evaluations among regulatory authorities, sponsors, and other stakeholders to enhance the guideline's implementation.
Purpose: This study aimed to compare awake bruxism events between subjective and objective evaluations using a questionnaire survey and a modified portable electromyography (EMG) device, and to examine correlations between sleep quality and awake bruxism.
Methods: The Epworth Sleepiness Scale (ESS), Pittsburgh Sleep Quality Index (PSQI), and awareness of awake bruxism as clarified via interviews were conducted on 34 participants as subjective evaluations. The EMG device was used to record left temporal muscle activity for 6.