periodontal

[per-ee-uh-don-tl]
adjective Dentistry.
1.
of or pertaining to the periodontium.
2.
of or pertaining to periodontics.
3.
of or pertaining to the periodontal membrane.
Also, peridental.


Origin:
1850–55; peri- + -odont + -al1

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
periodontal (ˌpɛrɪəˈdɒntəl)
 
adj
of, denoting, or affecting the gums and other tissues surrounding the teeth: periodontal disease

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

periodontal
1854, lit. "around the tooth," from peri- (q.v.) + Gk. odon (gen. odontos) "tooth."
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

periodontal per·i·o·don·tal (pěr'ē-ə-dŏn'tl)
adj.

  1. Surrounding or encasing a tooth.

  2. Relating to or affecting tissues and structures surrounding and supporting the teeth.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
For example, one team of students in our program developed a method for
  diagnosing periodontal disease.
Gum inflammation and ulcers are common and not all people with these problems
  develop periodontal disease.
Periodontal disease is marked by bacterial overgrowth.
The ultimate outcome of uncontrolled periodontal disease is tooth loss.
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