The most difficult task for a dental (牙医的) student to learn is tooth waxing (蜡型制作). Tooth waxing means to use a tool to apply wax to a crown (齿冠) in order to create a tooth shape. It provides a student with the opportunity to learn the general characteristics of tooth anatomy (解剖学). Besides, the class also helps a student learn patience and operational skills. For these reasons I signed up for the tooth waxing course provided by Dr Hunt.