Tooth

Hello! my name is Sai I from Kazakhstan At me a question such: I was at the stomatologist to me not long ago filled a tooth, told that I can year still resembles but on medical examination it was necessary to me for work, told that I had a small black point 3-beginning caries, well both front upper and lower teeth to me cleaned. And at wash teeth front lower became more sensitive so I can drink warm tea but I cannot drink cold and hot water, tea and I cannot eat with foreteeth? I back did not go to tooth. What can I make teeth shchya? In advance to you thanks!!!!!