Osteoporosis is a serious disease that increases the risk of bone fractures, which may lead to becoming bedridden. However, since there are typically no obvious symptoms until a fracture occurs, it is important to increase the rate of treatment and rate of continuity of treatment. In the region I serve,^* there was an urgent need for measures to prevent fractures, and collaboration in various forms (medical-dental collaboration, medical and nursing care collaboration, inter-regional collaboration) was a high priority. Chugai responded by launching an osteoporosis treatment network that involved medical, dental, pharmacist and dietetic associations as well as local government agencies (municipal governments and public health centers). Through this network, we created and applied various tools to facilitate collaboration, including a medical-dental collaboration form, and promoted disease awareness and primary prevention in cooperation with local government agencies.

As a result, the osteoporosis treatment rate in this area increased dramatically between 2017 and 2019. Going forward, we will look to broaden our contribution by further improving the treatment environment and actively disseminating information to other regions, using this region as a model case.

• *Northern Oita Prefecture Medical Area (City of Nakatsu, Usa and Bungotakada) and Fukuoka Keichiku Medical Area (City of Buzen)