Located in Mamedo-cho, Kohoku-ku, Yokohama City, Hanai Dental Clinic opened in 1980 as a clinic founded by a second-generation dentist who has lived in Kikuna for over 50 years. The clinic accepts patients not only from nearby areas such as Kikuna and Mamedo, but also from throughout Yokohama City, Tokyo's 23 wards, and even from distant locations like Niigata and Gunma prefectures. The range of treatments covers everything from initial caries to specialized endodontic therapy and oral surgery, including oral cancer screenings, treatment of inflammation, trauma, and jaw deformities. The clinic focuses on "long-lasting treatments" and introduced a dental microscope in 2011 to improve treatment precision. The practicing dentist, who has 11 years of experience working in oral surgery after graduating from dental school, incorporates the visual treatment methods of oral surgery into dental care, moving beyond reliance on manual sensation and intuition to achieve more precise treatments. The clinic offers services in English and accepts credit cards and electronic payments.