Seibikai Orthodontic Clinic is a specialized orthodontic clinic conveniently located right near the B5/A5 exits of Shinjuku-sanchome Station in Tokyo. Its history dates back to 1931, when the first director, Shigeki Matsumoto, opened the Matsumoto Orthodontic Research Institute. With over 90 years of dedicated orthodontic practice, the clinic has built a solid track record. In 1967, it relocated to Shinjuku and changed its name, and in 1988, the third-generation director took over. Since 2019, under its current name, the clinic has been actively introducing new equipment and technologies. One of the clinic's key features is its counseling-focused approach: during the initial examination and consultation, patients' symptoms and requests are thoroughly reviewed, and treatment plans tailored to individual circumstances are proposed. The clinic is equipped with the latest devices, including CT and digital scanners, enabling precise examinations and diagnoses. Consulting hours are from 10:30 AM to 7:00 PM on weekdays, with Saturday and Sunday hours until 6:00 PM, making it easy for working professionals and students to schedule visits. Located just a 3-minute walk from the east exit of Shinjuku Station, the clinic is situated in a convenient area surrounded by Isetan and Kinokuniya Bookstore. The clinic accepts credit cards, debit cards, and electronic payments, flexibly accommodating diverse payment needs.