retrognathia

retrognathism

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

retrognathia

[ret′rōnā′thē·ə]
Etymology: L, retro, backward; Gk, gnathos, jaw
a condition in which either or both jaws recede with respect to the frontal plane of the forehead. According to Angle's Classification of Malocclusion, the facial profile of a person with a Class II malocclusion is retrognathic. Also called mandibular retroposition, mandibular retrusion, maxillary retroposition, maxillary retrusion.

retrognathia

(rĕt″rō-năth′ē-ă) [L. retro, back, + Gr. gnathos, jaw]
Location of the mandible behind the frontal plane of the maxilla.

retrognathia

underdevelopment of the maxilla and/or mandible.
References in periodicals archive ?
In contrast, the American Academy of Sleep Medicine recommends that routine health visits should include questions about OSA and evaluation of risk factors such as obesity, retrognathia, and treatment-refractory hypertension.
6) Affecting the temporomandibular joint (TMJ), JIA is associated with characteristic facial changes, in particular with short mandibular ramus and a clockwise rotation of the mandibular body, an outstanding antegonial point and mandibular retrognathia.
Other facial anomalies (Other than clefts) and retrognathia constitute 8.
In addition, presence of symptoms including apnea during sleep, secondary enuresis, cyanosis, daytime somnolance, and learing difficulties, and physical examination findings including obesity, tonsillar hypertrophy, adenoid facies, micrognathia or retrognathia, highly arched palate, growth and developmental delay, and hypertension should warn pediatricians in terms of OSA syndrome.
Anaesthesia for retrognathia correction in a case of Klippel Feil syndrome.
Two boys born to women who took a TNFi had minor malformations, one with nasal bone aplasia, retrognathia, and hydronephrosis, and the other with hypospadias.
Bilateral TMJ disk displacement induces mandibular retrognathia.
Upon patient extra-oral profile examination, a class II skeletal relation presented in 78% of patients, showing maxillary protrusion and/or mandibular retrognathia with more than 4mm profile convexity.
4) Other indicators are malformation of the maxilla, mandible and associated structures; certain craniofacial morphological features such as a long, narrow face and high narrow palatal arch; and retrognathia.
Cranio-facial malformation retrognathia (recession of the chin), nasal deformities, positive family history, recurrent alcohol ingestion, sedative use, and minority race also have been associated with OSA (Kryger et al.
Assess for conditions that can cause obstruction, such as nasal congestion, septal deviation, retrognathia (malocclusion of the mouth due to an abnormal posterior position of the maxilla or mandible), macroglossia (an unusually large tongue), dental malocclusion, enlarged lymphoid tissue and tonsils, large uvula, low hanging soft palate, and a large neck circumference (>40 cm for females and >43 cm for males).
Patients with craniofacial anomalies have varying degrees of airway obstruction, which is usually secondary to micrognathia, retrognathia and resultant malposition of the base of the tongue3.