Ookayama Tsukasaki Dental Clinic, located in Kita-Kitsuzuka, Ota Ward, Tokyo, is a dental clinic offering multilingual services. This clinic provides treatment in English, Korean, and other languages, with a particular emphasis on water in their treatment environment. The clinic is characterized by providing safe and secure dental care using functional water. The clinic is closed on Thursdays, Sundays, and holidays, as well as January 3-5, December 29, and December 31. Information about business hours is not listed on the official website. The website also features information on clinic facilities, transportation access, and a 24-hour reservation system. The clinic prioritizes a treatment system that utilizes functional water and provides dental care to many patients through multilingual support.