Located in Kohoku Ward, Yokohama City, Kanagawa Prefecture, Hiyoshi At Dental is a dental clinic focused on preventive dental care. The clinic aims for "KEEP28," which is about preserving all teeth throughout life, practicing treatments that are as painless as possible, minimize drilling, and avoid extractions. In a sanitary clinic environment with thorough infection prevention measures, airborne contaminants during treatment are suctioned out using an extraoral vacuum, and dental instruments are sterilized in an autoclave after each use. As safety-conscious equipment, the clinic has introduced a CT scanner, intraoral 3D scanner, and electric injector for dental anesthesia. In treatment, efforts are made to reduce pain, such as applying topical anesthesia before anesthesia injections, aiming to reduce the burden on patients. Based on periodontal disease treatment, the clinic handles a wide range of cases and proposes customized preventive plans called "MTM" for each patient. For restorations after cavity treatment, zirconia ceramic inlays with excellent strength and low plaque adhesion are used. The clinic offers English support, electronic payment options, parking availability, and barrier-free accessibility, creating an easily accessible environment.