1. Any deviation from a physiologically acceptable contact of opposing dentitions. 2. Any deviation from a normal occlusion.

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mal·oc·clu·sion .mal-ə-'klü-zhən n improper occlusion esp abnormality in the coming together of teeth

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a condition in which there is an abnormal arrangement of the teeth, either within one jaw or in one jaw in relation to the other. If severe, it may require orthognathic surgery.

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mal·oc·clu·sion (mal″ə-klooґzhən) such malposition and contact of the maxillary and mandibular teeth as to interfere with the highest efficiency during the excursive movements of the jaw that are essential for mastication; originally classified by Angle into four major groups, depending on the anteroposterior jaw relationship as indicated by interdigitation of the first molar teeth, but Class IV is not used (see table).

(A), Normal occlusion; (B), Class I malocclusion; (C), Class II malocclusion; (D), Class III malocclusion. Note the position of the mesial cusp of the maxillary molar relative to the mandibular molar in each type of occlusion.

Medical dictionary. 2011.

Look at other dictionaries:

  • malocclusion — [ malɔklyzjɔ̃ ] n. f. • 1963; mot angl., de 1. mal et occlusion ♦ Méd. Fermeture défectueuse des dentures (implantation anormale de certaines dents, anomalie de position des mâchoires). ⇒MALOCCLUSION, subst. fém. MÉD. ,,Rapport défectueux ou… …   Encyclopédie Universelle

  • malocclusion — 1864, from MAL (Cf. mal ) + OCCLUSION (Cf. occlusion) …   Etymology dictionary

  • malocclusion — [mal΄ə klo͞o′zhən] n. improper meeting of the upper and lower teeth; faulty occlusion …   English World dictionary

  • Malocclusion — Deep bite redirects here. For the village, see Deep Bight, Newfoundland and Labrador. Malocclusion Classification and external resources ICD 10 K07.4 ICD 9 …   Wikipedia

  • Malocclusion Dentaire — La malocclusion dentaire se traduit par une pousse anormale des dents. Sommaire 1 Chez l humain 2 Chez les animaux 2.1 Rongeurs 3 Notes …   Wikipédia en Français

  • Malocclusion dentaire — La malocclusion dentaire se traduit par une pousse anormale des dents, ce qui perturbe considérablement la fonction musculaire des mâchoires et la posture du corps face à la gravité terrestre. Sommaire 1 Chez l humain 2 Chez les animaux 2.1… …   Wikipédia en Français

  • malocclusion — noun Date: 1888 improper occlusion; especially abnormality in the coming together of teeth …   New Collegiate Dictionary

  • malocclusion — maloccluded, adj. /mal euh klooh zheuhn/, n. Dentistry. faulty occlusion; irregular contact of opposing teeth in the upper and lower jaws. [1885 90; MAL + OCCLUSION] * * * …   Universalium

  • malocclusion — noun A misalignment of the upper and lower sets of teeth …   Wiktionary

  • malocclusion — mælÉ™ kluːʒn n. condition in which the upper and lower teeth do not align properly when closed (Dentistry) …   English contemporary dictionary

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