retrognathism


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retrognathism

 [ret″ro-nath´izm]
retrusion of the mandible. Called also retrognathia. adj., adj retrognath´ic.

ret·ro·gnath·ism

(ret'rō-nath'izm), In the diphthong gn, the g is silent only at the beginning of a word.
A condition of facial disharmony in which one or both jaws are posterior to normal in their craniofacial relationships; usually used in reference to the mandible.
[retro- + G. gnathos, jaw]

retrognathism

/ret·ro·gnath·ism/ (-nath´izm) retrusion of the mandible.retrognath´ic

retrognathism

[ret′rōnā′thizəm]
Etymology: L, retro + Gk, gnathos, jaw
a facial abnormality in which a jaw, usually the mandible, or both jaws are posterior to their normal facial positions. Also called bird face retrognathism.

ret·ro·gnath·ism

(ret-rog'nă-thizm)
A condition of facial disharmony in which one or both jaws are posterior to normal in their craniofacial relationships; usually used in reference to the mandible.
[retro- + G. gnathos, jaw]

ret·ro·gnath·ism

(ret-rog'nă-thizm)
Condition of facial disharmony in which one or both jaws are posterior to normal in their craniofacial relationships.
[retro-, back + G. gnathos, jaw]

retrognathism (ret´rōnath´izm),

n facial disharmony in which one or both jaws (usually the mandible) are posterior to normal facial relationships. This condition may be real or imaginary.
retrognathism, bird-face,
n typical facial profile associated with an underdeveloped mandible; a retrognathia and small mandible usually associated with interference of condylar growth because of trauma or infection affecting the condyles. Surgical intervention is necessary for improvement.
retrognathism, Pierre Robin,

retrognathism

a state of being affected by retrognathia.
References in periodicals archive ?
We observed that subjects with prognathism and retrognathism present adaptations in all functions performed by the oral motor system before orthognathic surgery.
1] According to McNamara, Class II malocclusions result mostly from a relative mandibular retrognathism rather than from a maxillary prognathism.
Significant findings in this study could make mandibular retrognathism an important early indicator of crowding, allowing for timely and appropriate intervention.
an increased craniocervical angle, is connected with a large anterior and small posterior facial height, reduced sagittal craniofacial dimensions, large inclination of the mandible compared to the anterior cranial base and nasal plane, facial retrognathism, large angle of the cranial base and reduced nasopharyngeal space.
3) The long-term complications of intra--and extracapsular fractures, such as development of facial asymmetry or mandibular retrognathism and anterior open bite, as well as ankylosis of TMJ or painful temporomandibular disorders (TMD), seem rare.
The risk score was developed between 0 to 10 taking into account 5 variables-Weight in kg, Head and neck mobility (Degrees), Mandibular mobility, Retrognathism, Prominence of upper incisors.
54% of the patients had maximum mouth opening (MMO), short thick neck, and retrognathism, respectively.
Top retrognathism was on the third place in frequency 25 cases (12.
found repeatedly in the royal family, not only clinical features of LDS, but also scoliosis, club foot, incisional hernia, cleft palate, retrognathism, dental crowding and highly arched palate.
Adult upper airway abnormalities in sleep apnoea Enlarged and elongated uvula Adenoids Hyperplastic or thick soft palate Obstructive tonsils Constricted oropharynx Deviated septum Macroglossia Enlarged nasal turbinates Enlarged tongue base Nasal polyps or any other Prominent oropharyngeal folds obstructive masses Skeletal deformities, Maxillary & Mandibular Retrognathism or hypoplasia, Receded chin Table II.
10 -- Unspecified anomaly; prognathism; retrognathism
A retarded lower jaw is known as retrognathism, and is probably the most common of all facial deformities.