( e ) the formation of tuberosities that simulate teeth at a short distance in from the labial edge , by four processes : formation of an undulating plate margin , differential growth of petrodentine ( hard compact dentine ) within the pulp cavity , differential wear of the petrodentine and the adjacent bone plus pleromic dentine , and slightly greater growth of the petrodentine towards the occlusal surface relative to the adjacent bone and dentine ;
C0040426
teeth
C0011429
dentine