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[per-ee-uh-don-tiks] /ˌpɛr i əˈdɒn tɪks/
noun, (used with a singular verb)
the branch of dentistry dealing with the study and treatment of diseases of the periodontium.
Also, periodontia
[per-ee-uh-don-shuh, -shee-uh] /ˌpɛr i əˈdɒn ʃə, -ʃi ə/ (Show IPA)
1945-50; < New Latin periodont(ia) (see peri-, -odont, -ia) + -ics
Related forms
periodontic, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for periodontics


(functioning as sing) the branch of dentistry concerned with diseases affecting the tissues and structures that surround teeth Also called periodontology
Derived Forms
periodontic, adjective
periodontically, adverb
Word Origin
C19: from peri- + -odontics, from Greek odōn tooth
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for periodontics

1948, from periodontia (1914; see periodontal) + -ics. Periodontic (adj.) is attested by 1889.

Online Etymology Dictionary, © 2010 Douglas Harper
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periodontics in Medicine

periodontics per·i·o·don·tics (pěr'ē-ə-dŏn'tĭks)
The branch of dentistry concerned with the care and treatment of the tissues surrounding and supporting the teeth. Also called periodontia.

per'i·o·don'tic or per'i·o·don'ti·cal adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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periodontics in Science
The branch of dentistry that deals with the study and treatment of the tissues surrounding and supporting the teeth, especially the gums.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for periodontics

dental specialty concerned with the prevention, diagnosis, and treatment of functional and structural diseases of the periodontal membrane and related tissues that surround and support the teeth. Degeneration or inflammation of these tissues can be caused by various systemic or local diseases or by poor oral hygiene. In some cases the cause is not established. Most commonly, periodontal diseases are caused by hardened bacteria, called bacterial plaque, which adheres to teeth and destroys periodontal tissue. The most prevalent periodontal disease is periodontitis, inflammation of the periodontium. If untreated, periodontitis leads to resorption of the portion of the jawbone that supports the teeth.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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