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[awr-thuh-don-shuh, -shee-uh] /ˌɔr θəˈdɒn ʃə, -ʃi ə/
noun, Dentistry.
treatment for the correction of irregularly aligned teeth, usually involving braces and sometimes oral surgery.
Origin of orthodontia
1840-50; orth- + -odont + -ia Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for orthodontia
  • Thus, it is as invisible to the success of a dinner as the years of orthodontia that allowed the diner to chew.
  • She is trying to survive the rigors of academia and adult orthodontia with grace.
  • orthodontia involves teeth straightening and repositioning.
  • Only mandibular bone grafts performed for other than orthodontia or dental support are eligible for benefits.
  • If expenses are for orthodontia, an orthodontia contract must be submitted with your first plan year claim.
British Dictionary definitions for orthodontia


(functioning as sing) the branch of dentistry concerned with preventing or correcting irregularities of the teeth Also called dental orthopaedics
Derived Forms
orthodontic, adjective
orthodontist, noun
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 orthodontia

1849, from ortho- + Greek odon (genitive odontos) "tooth" (see tooth).

Online Etymology Dictionary, © 2010 Douglas Harper
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