#cementum__cement  a specialized bony substance covering the root of a tooth
  supertype:  #solid_body_substance  the solid parts of the body
  part of:  #tooth_root__toothroot__root  the part of a tooth that is embedded in the jaw and serves as support
     part of:  #tooth  hard bonelike structures in the jaws of vertebrates; used for biting and chewing or for attack and defense

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