Publications by authors named "Mitsuzumi Okada"

Background: With the global rise in the aging population, the relationship between oral function and risk of long-term care is attracting attention. One method for subjective assessment of masticatory function is the use of a food acceptance questionnaire. Although it is hypothesized that objective oral functions such as tongue pressure and swallowing function are associated with subjective masticatory performance, this relationship has yet to be investigated.

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Background: Differences in the effects of cream-type denture adhesives and home liners remain unclear.

Objective: This cross-sectional study aimed to clarify the differences in the oral-hygiene status and masticatory performance between participants using cream-type denture adhesives and those using home liners.

Methods: Masticatory performance with and without cream-type denture adhesives and home liners was evaluated using colour-changeable chewing gum.

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Purpose: Color-changeable chewing gums are used to evaluate masticatory performance, as measured by a colorimeter or visually based on a color scale. Although anyone can use a color scale, the evaluation accuracy depends on the evaluator. We develop an application that can determine the degree of color change in chewing gum using smartphone images, making color evaluation accurate and easy to measure.

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The older adult population in Japan is expected to increase. Therefore, long-term care and frailty prevention are important. However, the relationship between masticatory performance, nutritional intake, and frailty remains unclear.

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The type of denture adhesive, cream or home-liner, chosen by regular denture adhesive users and oral conditions contributing to this selection require elucidation. The factors associated with denture adhesive selection were investigated through a face-to-face survey on oral and denture conditions. Age, sex, oral moisture, masticatory performance, retention and stability of the removable denture, ridge shape, mucosal thickness, and duration of denture use were examined in cream and home-liner-type denture adhesive users who did not regularly visit a dentist.

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Purpose: Maintaining good masticatory function from a young age promotes lifelong health, yet limited studies have explored masticatory performance in young individuals. We investigated the relationship of sex, age, and individual oral functions with masticatory performance among junior and senior high school students and young adults.

Methods: This cross-sectional study included students aged 12-13, 14-15, and 16-17 years (groups S1, S2, and S3, respectively) and young adults aged 20-40 years (group YA).

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