A Dentist’s Abnormal Love 2010 on netflix

Seiichi is a dentist in an office district. He has two assistants, Yuko and Tomo. Seiichi is unfriendly with male patients, but when a female patient comes, his eyes take on an unusual light, and he collects the teeth of patients he has extracted at home. Seiichi believes that each tooth has its own personality, and he has even won teeth at auctions.