I have had different kinds of dental work done, and I have never before been in so much pain for a small filling. The dentist had the assistant pry open my mouth with two hands because I couldn't open as wide as he would like. He pinched my lip with his instruments and left the inside of my cheeks raw and cut in several places. The next day, I was still sore was lacerations inside my mouth. There is no reason I should be in pain from a simple filling. As far as hygiene, the dentist did not wear a mask either time he worked on me.