prognathism


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Related to prognathism: Orthognathism, supraorbital torus, brachygnathism

prognathism

 [prog´nah-thizm]
abnormal protrusion of one or both jaws, especially the lower jaw, the gnathic index being above 103. adj., adj prognath´ic, prog´nathous.

prog·na·thism

(prog'nă-thizm), In the diphthong gn, the g is silent only at the beginning of a word.
The condition of being prognathic; abnormal forward projection of one or of both jaws beyond the established normal relationship with the cranial base; the mandibular condyles are in their normal rest relationship to the temporomandibular joints.
Synonym(s): progenia

prognathism

/prog·na·thism/ (prog´nah-thizm) abnormal protrusion of the mandible.prognath´icprog´nathous

prognathism

[prog′nəthiz′əm]
Etymology: Gk, pro + gnathos, jaw
an abnormal facial configuration in which one or both jaws project forward. It may be real or imaginary, depending on anatomical and developmental factors. Real prognathism may exist when both the mandible and the maxilla increase in length or when the maxillary length is normal and the mandibular length increases excessively. Imaginary prognathism may exist when the maxilla is underdeveloped and the mandibular length is normal. prognathic, adj.
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Prognathism

prog·na·thism

(prog'nă-thizm)
The condition of being prognathic; abnormal forward projection of one or of both jaws beyond the established normal relationship with the cranial base; the mandibular condyles are in their normal rest relationship to the temporomandibular joints.
Synonym(s): progenia.

prognathism

Abnormal protrusion of either jaw, especially the lower.

prog·na·thism

(prog'nă-thizm)
Condition of being prognathic; abnormal forward projection of one or both jaws beyond established normal relationship with cranial base; mandibular condyles are in their normal rest relationship to the temporomandibular joints.

prognathism (prog´nəthizəm),

n a facial disharmony in which one or both jaws project forward. It may be real or false. Mandibular prognathism may exist when both the maxillae and the mandible increase in length or when the maxillae are of normal length but the mandible increases in length. It may be false when the maxillae are underdeveloped and short and the mandible is of normal length or when the maxillary and mandibular dental relationships are normal but there is an increase in the mental prominence of the mandible.

prognathism

abnormal protrusion of one or both jaws, especially the lower jaw.
References in periodicals archive ?
He demonstrated frontal bossing, retrognathic premaxilla with relative mandibular prognathism, thin upper lip and a protruding lower lip.
He has a mandibular prognathism with no transverse deviation (Fig.
Although we have previously demonstrated that mandibular setback surgery for correction of mandibular prognathism in nongrowing patients without active CH is a very stable procedure (5), numerous studies have reported relapse for mandibular setback ranging from 20% to 91% of the amount of posterior surgical movement (6-14).
CH type 1 results in a horizontal overdevelopment of the mandible and is usually termed symmetrical or deviated prognathism, laterognathia, or mandibular hyperplasia.
15-17] In fact, it was reported that mandibular setback for the correction of mandibular prognathism has produced OSAS.
Obstructive sleep apnea syndrome following surgery for mandibular prognathism.
Her diagnosis at age 13 years included maxillary hypoplasia (upper jaw underdevelopment), mandibular prognathism (lower jaw overdevelopment), class III occlusion (lower teeth out in front of upper teeth), missing maxillary lateral incisors, left oronasal fistula, and left maxillary alveolar cleft (Figure 2).