
Hizuru Miyamoto, DDS, PhD, MBA(日本埼玉縣齒科醫師會)
學經歷
Member, Saitama Dental Association, Japan
Delegate, Specialist, Instructor, The Japanese Society for Temporomandibular Joint
Director, Dentistry & Oral Surgery of Happy Town
摘要
Background: Oral hypofunction has been identified as a critical factor that increases the risk of requiring long-term care and overall mortality. Recognizing this significance, the Japanese Ministry of Health, Labor and Welfare designated it as an insurance-covered disease in 2018. Current therapeutic approaches primarily focus on myofunctional training, such as “Tongue Rotation” and “A-I-U- Be” exercises, to enhance the musculature governing oral functions.
Pioneering Practice in Shiki City: Shiki City in Saitama Prefecture has been a national pioneer in implementing oral function management programs. The speaker has been deeply involved in these initiatives as a leading expert, establishing a model for community-based oral frailty prevention.
The Missing Link – TMJ Function: While muscle training is essential, clinical evidence suggests that aging-related physiological changes in the temporomandibular joint (TMJ) significantly reduce the range of motion, thereby impairing masticatory efficiency. Despite this, TMJ management remains largely overlooked in the current protocols for oral hypofunction.Objective and Discussion: This presentation discusses the scientific rationale for integrating TMJ functional recovery into existing oral function management. Drawing from the “Shiki Model” and clinical research, the speaker will argue that restoring TMJ mobility is a fundamental prerequisite for maximizing the effectiveness of conventional muscle training. Furthermore, the discussion will address the necessity of including “TMJ Management” in public health insurance policies in both Japan and Taiwan to address the challenges of an aging society.








