Ota Dental Clinic (Medical Corporation Shizenkai), located in Honmachi, Okaya City, Nagano Prefecture, has been supporting the oral health of local residents for over 65 years since its establishment in 1960. The clinic's core treatment philosophy is 'saving teeth rather than extracting.' Even in cases where extraction has been recommended at other clinics, the clinic states that most teeth can be saved by utilizing the latest techniques, emphasizing fundamental improvement rather than symptomatic treatment. In terms of equipment, the clinic has introduced dental CT, microscopes, lasers, and photo-functionalization technology, enabling precise diagnosis and minimally invasive treatment. Additionally, 10-film dental radiography is used for early detection of cavities and periodontal disease, with a strong focus on preventive dentistry. The clinic employs an assigned dentist and dental hygienist system for each patient, providing consistent support from treatment to prevention and maintenance. Furthermore, a pediatric dental specialist certified by the Japan Dental Organization—with only approximately 1,200 such specialists nationwide—is on staff, providing treatment that considers children's growth and development. The clinic features parking, barrier-free facilities, and accepts credit cards and electronic payments, creating an accessible environment for a wide range of patients.