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 ?
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.
4, 2013 /PRNewswire-USNewswire/ -- The need for dental implant treatment in older patients remains high, considering the prevalence of partial and complete loss of one's teeth, according to an article in the November 2013 issue of the Journal of Oral and Maxillofacial Surgery, entitled Virtual Surgical Planning for Treatment of Severe Mandibular Retrognathia With Collapsed Occlusion Using Contemporary Surgical and Prosthodontic Protocols.
6) Other craniofacial features are retrognathia, blue sclerae, highly arched palate and dental crowding.
manual inline neck stabilisation, trauma, retrognathia and patients who had undergone previous radiotherapy for laryngeal carcinoma) by the authors in a number of centres.
A specific note of the following abnormalities was made; macroglossia, pharyngeal crowding, bulky uvula, retrognathia, tonsillar enlargement and deviated nasal septum.
Many of these patients, particularly those with significant retrognathia, had moderate to severe presurgical sleep apnea symptoms because of the decreased oropharyngeal airway.
enlargement of the lower anterior vertical face, open bite, cross bite, retrognathia, and a larger mandibular angle).
Furthermore, in an interethnic study evaluated anthropometric parameters and craniofacial structures in 239 consecutive Chinese and Caucasian subjects from two different centres in Hong Kong and Canada, Chinese subjects had more crowded upper airways and relative retrognathia than the Canadians after controlling for body mass index and neck circumference (40).
A reduction in the TMJ-incisor distance correlates with a small mandibular length or retrognathia.
Classically, there is some degree of retrognathia, and various degrees of clefting of the lip and mandible may be present.
In addition, for patients who have a maxillofacial skeletal dysmorphology that is associated with OSA, mandibular retrognathia, retrogenia and the position of the hyoid bone may also contribute to airway difficulties during attempted intubation as well as during open airway sedation (52).
Successful airway management of an infant or child with moderate to severe retrognathia first requires recognition of a potential problem.