Located in Miyagawa, Chino City, Nagano Prefecture, Tanpopo Dental Clinic has been dedicated to preventive dentistry for over 20 years since its establishment. The clinic provides precise and meticulous treatments, employing occlusion treatment using techniques standard in many American dental universities and botulinum toxin for teeth grinding. It is the only facility in the Suwa area to offer specialist-performed root canal treatment, with a policy of completely eliminating bacterial risks around dental nerves to prevent recurring treatments. The clinic has introduced the "Good Smile System," a preventive dental care system that originated from the Pankey Institute in the US and has spread worldwide, starting by accurately understanding the current oral condition through comprehensive dental examinations. It offers customized programs tailored to individual oral conditions, including three-session dental check-ups, five-session preventive programs, and maintenance combining regular management with mini dental check-ups, with the goal of increasing the probability of preserving teeth throughout life. The facility is equipped with amenities such as English-speaking staff, credit card and electronic payment options, and on-site parking. It implements advanced infection prevention measures, with additional COVID-19 precautions to ensure even higher infection control.