DENTIN (lot. dens – dandon), yake az namudhoi boftai ustukhonii dandon. D. az ustukhon bo sakhtiash khud farq mekunad. Tarkibi D. az 64% namakhoi minerali, 28% moddahoi organiki va qarib 8% ob iborat ast. D. az moddahoe, ki torhoi kollageni dorand va juyakhoi dandon (ba vositai onho ba D. shokhchahoi odontoblastho dokhil meshavand) tarkib yoftaast.