Located on the 25th floor of Sanno Park Tower in Nagatacho, Chiyoda-ku, Tokyo, Furuichi Dental Clinic is a dental practice focused on preventive dentistry. The clinic reports that 97% of children who received maintenance three times per year have reached adulthood without cavities or periodontal disease, and for 23 years they have worked to maintain a state requiring no treatment. Services include preventive dentistry, orthodontics, general dentistry, Invisalign, pediatric dentistry, and dental implants. Orthodontic treatment is recommended not only for aesthetic improvement but also from a preventive perspective, as properly aligned teeth reduce the risk of cavities and periodontal disease. Business hours are Monday 10:00-19:00, Tuesday-Friday 10:00-18:30; closed on weekends and holidays. The facility is equipped with parking and is barrier-free accessible. Credit card and electronic payments are accepted, and English-speaking staff are available. The cleaning fee for healthy individuals is 18,700 yen.