open bite

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large in·ter·arch dis·tance

a large distance between the maxillary and mandibular arches; may also imply an excessive vertical dimension.
Synonym(s): open bite (1)

open bite

an abnormal dental condition in which the anterior teeth in the maxilla do not occlude those in the mandible in any mandibular position. Compare closed bite.
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Open bite


(a-per'tog-nā'thē-ă) In the diphthong gn, the g is silent only at the beginning of a word.
An open-bite deformity, a type of malocclusion characterized by premature posterior occlusion and the absence of anterior occlusion.
Synonym(s): open bite (2) .
[L. apertus, open, + G. gnathos, jaw]

large in·ter·arch dis·tance

(lahrj intĕr-ahrch distăns)
Space between maxillary and mandibular arches.
Synonym(s): open bite (1) .

open bite,

n a malformation in which the anterior teeth do not occlude in any mandibular position.


1. seizure with the teeth.
2. a wound or puncture made by a living organism.
3. the position of upper and lower teeth in relation to each other when the mouth is closed. See also biting.

animal bite
trauma caused by teeth and usually heavily contaminated with microorganisms. In countries where rabies is present the additional consideration is to ensure that the biter is not rabid, or if there is uncertainty to decide on whether postbite treatment or vaccination would be desirable. See also cat-bite abscess, cat-scratch disease, fighting.
dog bite
see animal bite (above).
insect bite
depending on the nature of the insect and the site, the tissue response may be minimal to extensive, particularly when a hypersensitivity reaction is involved. Pruritus is also variable.
open bite
upper and lower incisors fail to meet when the mouth is closed.
overshot bite
pincer bite
upper and lower incisors make contact on their edges rather than overlapping when the mouth is closed.
reverse scissor bite
the labial surface of the lower incisors makes contact with the lingual surface of the upper incisors when the mouth is closed. Called also anterior crossbite.
scissor bite
the lingual surface of the upper incisors contacts the labial surface of the lower incisors when the mouth is closed. Generally, a normal bite in carnivores.
bite wound
it is often necessary to diagnose that a wound has in fact been caused by a bite. This may be aided by observation of typical puncture wounds, perhaps with extravasations of blood in the subcutaneous tissues, by parallel rake marks, by a matching pair of wounds made by the upper and lower jaws of the biter.
References in periodicals archive ?
Active vertical corrector treatment--long-term follow-up of anterior open bite treated by the intrusion of posterior Am J Orthod Dentofacial Orthop; 110:145-154, 1996.
These TMJ pathologies can result in retrusion of the mandible, loss of vertical height of the ramus secondary to condylar resorption, anterior open bite, Class II malocclusion, increased occlusal and mandibular plane angulations, limited jaw function, masticatory dysfunction, alteration of speech, decreased oropharyngeal airway, sleep apnea, and mild, moderate, or severe pain.
If there is unilateral premature contact between the posterior teeth, a posterior open bite will occur contralaterally.
also uses magnets to close an open bite, a more serious problem.
Patients having an open bite frequently complain of an extremely dry mouth, as they cannot close their lips tightly.
Chapter 7 Stability of Anterior Open Bite CorrectionAn Assessment of the Evidence
Nina Zeigler - a family dentist in Missouri - had a sparkling smile but what couldn't be seen on the outside were an open bite and a severe clenching and grinding problem.
And afterwards the former call centre worker, who was left a mass of bruises and with an open bite wound on his ear, was so traumatised he even thought about ending his life.
For the treatment of anterior open bite many treatment regimens have been recommended.
dolicocephalic) facial morphology (Figure 1a,1b); and predominance of class II skeletal (retruded lower jaw) and occlusal relationships with or without open bite (Figure 1c).