Seki Dental Clinic is located in Higashi-Kasai, Edogawa Ward, Tokyo. Situated on the second floor of the Mainbasket supermarket along the Tozai Line tracks, behind the Subway Museum at Kasai Station. Treatment is by appointment, with services available until 8 PM on weekdays and 6 PM on Saturdays. Walk-in acceptance ends 30 minutes before closing; Saturdays tend to be busy, so early booking is recommended for preferred times. Services include periodontal care and cleaning by dentists, with a professional treatment course using Linamel PMTC paste available for an additional fee. The waiting room is designed to resemble a hotel lobby, while treatment rooms offer a relaxing environment under blue skies evoking a forest atmosphere. A kids' room where children can remove their shoes and play is located at the back of the waiting room, with Tozai Line trains visible outside the windows. This clinic provides English language services.