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[per-ee-oh-don-tahy-tis] /ˌpɛr i oʊ dɒnˈtaɪ tɪs/

noun, Dentistry.
inflammation of the caused by bacteria that infect the roots of teeth and the surrounding gum crevices, producing bleeding, pus formation, and gradual loss of bone and the tissues that support the teeth.
Compare (def 2).

1842; see periodontal + -itis.

periodontitis per·i·o·don·ti·tis (pěr’ē-ō’dŏn-tī’tĭs)
Disease of the periodontium characterized by inflammation of the gums, resorption of the alveolar bone, and degeneration of the periodontal membrane.


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  • Periodontium

    [per-ee-uh-don-shuh m, -shee-uh m] /ˌpɛr i əˈdɒn ʃəm, -ʃi əm/ noun, plural periodontia [per-ee-uh-don-shuh, -shee-uh] /ˌpɛr i əˈdɒn ʃə, -ʃi ə/ (Show IPA) 1. the bone, connective tissue, and gum surrounding and supporting a tooth. n. 1828; see periodontal. periodontium per·i·o·don·ti·um (pěr’ē-ə-dŏn’shē-əm) n. pl. per·i·o·don·ti·a (-shē-ə, -shə) The tissues that surround and support the teeth, […]

  • Periodontoclasia

    periodontoclasia per·i·o·don·to·cla·sia (pěr’ē-ō-dŏn’tə-klā’zhə, -zē-ə) n. Pathological destruction of the periodontium. No longer in technical use.

  • Periodontology

    [per-ee-oh-don-tol-uh-jee] /ˌpɛr i oʊ dɒnˈtɒl ə dʒi/ noun 1. .

  • Periodontosis

    [per-ee-oh-don-toh-sis] /ˌpɛr i oʊ dɒnˈtoʊ sɪs/ noun, Dentistry. (no longer in technical use) 1. . periodontosis per·i·o·don·to·sis (pěr’ē-ō’dŏn-tō’sĭs) n. A degenerative disease of the periodontal ligament and tooth sockets, characterized by looseness and migration of teeth.

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