Located in Kunitachi City, Sei Dental Clinic provides dental care with a motto of faithful and careful treatment. The clinic thoroughly explains appropriate treatment methods for oral symptoms, ensuring patients understand and consent before proceeding with treatment. Not limited to initial explanations, step-by-step explanations are provided throughout each treatment phase. They focus on accurate and careful treatment centered on dental fundamentals—properly removing decayed areas, securely placing fillings, and minimizing recurrence risks. Treatment is conducted with a long-term perspective considering dental health 10 or 20 years into the future. The clinic also offers aesthetic treatments featuring a wide range of materials including all-ceramics, aiming for healthy and beautiful smiles that consider both functional and aesthetic roles. A distinctive feature is the in-house dental laboratory with full-time dental technicians, who can directly examine patients' mouths, allowing for better-fitted prosthetics and on-site adjustments. Electric anesthesia systems are used to control injection speed and other factors, reducing pain from the anesthesia stage. An orthodontic specialist is on staff, providing treatments that create healthy oral environments through balanced tooth alignment and occlusion.