Dental Clinic ZERO, located in Unuma-Kakamigahara Town, Kakamigahara City, supports the lifelong oral health of patients. Adopting microscopes for all treatments, they clearly visualize bacteria invisible to the naked eye to strive for recurrence prevention. Creating a bright atmosphere to help children establish regular check-up habits, they also emphasize preventive dentistry tailored to each patient's constitution and lifestyle habits. Using intraoral photos, X-rays, and microscope images, they visually explain treatment content to deepen understanding. Considerations to reduce pain are implemented through careful anesthesia procedures and gentle treatment. Environment improvements to enhance accessibility are also in place, including English support, credit card payments, parking, and barrier-free facilities.