Ohana Dental Clinic is a dental clinic located in Toi, Yugawara Town, Ashigarashimo District, Kanagawa Prefecture, equipped with English-speaking staff, parking facilities, and barrier-free accessibility. Based on research showing that untreated cavities in the elderly increase mortality risk by 1.7 times, the clinic provides accurate diagnoses and thorough explanations, presenting multiple treatment options and proceeding with treatment in consultation with patients. Their treatment philosophy emphasizes treating the entire mouth (whole-mouth approach) rather than just treating painful teeth individually, determining priorities based on overall dental balance. This approach makes it easier to establish plans from treatment to prevention. Recognizing risks such as tooth decay bacteria causing aspiration pneumonia, endocarditis, and sepsis, as well as the possibility of malnutrition and muscle weakness due to inability to chew from dental pain, the clinic focuses not only on treatment but also on preventive measures. Through regular dental checkups and thorough oral care, they provide accurate diagnosis, treatment, and prevention for oral health issues.