Located in Kai City, Yamanashi Prefecture, Iwashita Dental Clinic is a barrier-free dental clinic that supports English and provides treatment that considers patients' lifestyle backgrounds and overall physical condition. The clinic offers halitosis treatment, teeth whitening, and cavity treatment. The halitosis treatment approach involves identifying causes through examinations and interviews, then considering improvement plans together with patients. Teeth whitening uses a method that bleaches stains without filing natural teeth, with three plans to choose from. Cavity treatment uses ultra-thin needles of 0.15mm, showing consideration for minimizing pain. The clinic is equipped with specialized treatment by an oral surgeon twice a month, various examination systems including pathogen identification, and ensures convenience with credit card and electronic payment options such as PayPay, as well as parking facilities.