Oral Motor and Cognitive Dual-Task Training (OMCDT) Program for Improving Oral and Cognitive Functions Among People With Oral Frailty

The goal of this clinical trial is to proposes a novel Oral Motor and Cognitive Dual-Task Training (OMCDT) program that combines both oral motor exercises and cognitive tasks to improve brain and oral function at the same time. It will also learn about the safety of drug ABC. The main questions it aims to answer is: Does the OMCDT training can improve the oral and cognitive functions? Participants will: Take the OMCDT training once a week for 32 weeks Visit the lab twice in the intervention period (16-week, 32-week) for checkups and tests

Inclusion Criteria: 1. Adults aged 50 years or above; 2. Cantonese speaking; 3. Having oral frailty, which is defined as having at least two of the following components by Oral Frailty Five-item Checklist (OF-5): (i) Natural teeth fewer than 20, (ii) Have any difficulties eating tough foods now compared with 6 months ago; (iii) Have choked on tea or soup recently; (iv) Often experience having a dry mouth, and (v) Oral diadochokinetic /ta/ sound \