From Longman Dictionary of Contemporary Englishdentineden‧tine /ˈdentiːn/ (also dentin /ˈdentɪn/) noun [uncountable] HBHHBAthe type of bone that your teeth are made of
Examples from the Corpus
dentine• The surface pitting of the enamel is similar, and the dentine has not been removed or digested to any great extent.• Tooth dentine and bone is less affected. 