#tooth_root__toothroot__root  the part of a tooth that is embedded in the jaw and serves as support
  supertype:  anatomical_structure__structure__complex_body_part__bodily_structure__body_structure  a particular complex anatomical structure; "he has good bone structure"
  part of:  tooth
  part:  cementum__cement  a specialized bony substance covering the root of a tooth

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