TY JOUR TI THE NEED FOR COMPREHENSIVE PREVENTION OF HYPERESTHESIA AFTER THE TEETH WHITENING PROCEDURE KW teeth whitening KW hypersensitivity KW hyperesthesia KW hydrogen peroxide KW chemical bleaching JO Actual problems in dentistry AU Shumsky, A.V. AU Titova, O.Y. PY 2021 IS 17 PB TIRAZH Publishing House