Located just a 3-minute walk from Jiyugaoka Station on the Tokyu Toyoko and Oimachi Lines in Okusawa, Setagaya-ku, Tokyo, Jiyugaoka Orthodontic Clinic is a specialized orthodontic facility operated by Smile Design Medical Corporation. The clinic's most distinctive feature is the proprietary "JET System," an innovative orthodontic treatment method developed and introduced by Clinic Director Shinichi Narita in 2008. While traditional orthodontic treatment typically requires over two years for extraction cases, this system enables treatment completion in just 7 to 20 months, with results recognized through publication in the international medical journal "medicina" and presentations at the Japanese Orthodontic Society. The treatment combines low-friction technology with advanced materials such as gum metal and TMA wires to minimize pain and visibility, primarily targeting junior and senior high school students balancing club activities and exam preparations. The clinic is equipped with intraoral scanners and CT scanners for digital precision diagnostics without impressions, and maintains Class B-equivalent sterilization standards. Private counseling rooms, female doctors on staff, and a two-year relapse guarantee are additional strengths. Credit card and electronic payments are accepted, with consultations available Tuesday through Saturday, excluding holidays and the New Year period.