Flower and Snake 4: White Uniform Rope Slave (1986)

Flower and Snake 4: White Uniform Rope Slave 1986 / 花と蛇　白衣縄奴隷 1986 / Hana to hebi: Hakui nawa dorei , Flower and Snake: White Uniform Rope Slave

A perverted dentist (and dental assistant) who likes to sleep with his patients gets obsessed with one in particular who also happens to be a lesbian. He uses everything he can think of to abuse this woman and her female lover. Ropes/Dental tools/Ice Buckets/Candles/ (the works), and sometimes, he sets the mood with something from his classical music record collection. (Source: TMDb)