I bet your insurance has paid the fee for " deep cleaning". But

the insurance wont' cover 100% of deep clean . And depond on your insurance. the pecentage got covered by insurance is different. Usually, you have to pay couple of 100s out your own packet. ( I believe only 50% covered by insurance).
补完牙后那颗牙敏感，吃东西特别是吃肉或稍硬的东西会疼u need go back tho the dentist and tell them the problem . It might your nevers exposed which cause that problem. If that 's the case. you probably need a crown. But if you do end up with a crown.you can negocate with the dentist to wave your fee of 补牙.