Chiyoda First Building Dental Clinic is a dental clinic located in Chiyoda-ku, Tokyo, offering multilingual support including English and accepting credit cards and electronic payments. The clinic engages in professional development, participating in study sessions hosted by endodontic specialists from Tokyo Medical and Dental University. In these study sessions, experts lecture on root canal treatment for maxillary anterior teeth, teaching techniques to accurately grasp anatomical forms from X-rays and CT images, as well as minimally invasive approaches. Additionally, methods for applying surgical guides to root canal treatment are introduced, enabling maximum preservation of tooth structure and improved aesthetics. In a special lecture titled "Science of 'Untreatable'" by a Tokyo University of Science professor, initiatives for new laser development focusing on inadequate removal of intracanal biofilm were presented. This treatment method, which generates shockwaves through cavitation to remove biofilm, allows root canal treatment without cutting tooth structure. The clinic applies the knowledge gained through these study sessions to ongoing professional development and daily clinical practice, striving to provide higher-quality medical care. Business hours are 9:30 to 19:00 on weekdays and 10:00 to 17:00 on Saturdays; closed on Sundays and holidays.