歯し周しゅう

noun which may take the genitive case particle 'no'

periodontal; parodontal

Medical term used attributively to refer to tissues surrounding and supporting the teeth. Common in compounds like 歯周病 (periodontal disease).

• 歯し周しゅう組そ織しきの健けん康こうを保たもつことが大たい切せつです。

  It is important to maintain the health of the periodontal tissues.

• 歯し周しゅうポケットが深ふかくなると、歯し周しゅう病びょうが進しん行こうします。

  When periodontal pockets deepen, periodontal disease progresses.