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。