Presentation
INTRODUCTION: Young children with severe mandibular hypoplasia usually present with varying degrees of peripheral airway obstruction and difficulty with feeding. Early treatment is important for such children. [ncbi.nlm.nih.gov]
[…] genioplasty using the resected mandibular angle J J Kim H S Song and C G Park 258 Radiation injury to the face I T Jackson J S Topf M Gowda S Lash and B Audet 264 A new surgical treatment for the obstructive sleep apnea syndrome O A Uysal 270 Video presentations [books.google.com]
The presented case began when a female 15-year-old patient searched a dentist, a specialist in functional orthopedics of the jaws, complaining of large skeletal asymmetry. [scielo.br]
Entire Body System
- Disturbance of Growth
The mandibular condyle is regarded as the center of mandibular growth. Therefore, regional disturbances during the growth phase may negatively impact mandibular growth. [jiaomr.in]
Jaw & Teeth
- Prognathism
Surgical procedures to correct mandibular prognathism and reshaping of the chin. [jkamprs.springeropen.com]
Recently, MDO seems to have emerged as an alternative technique for relieving airway obstruction in paediatric patients with harsh mandibular hypoplasia to avoid tracheotomy and also improve oral eating. « Mandibular Prognathism – Causes, Treatment, and [mandibulartori.com]
[…] to C --> G mutation in the FGFR2 gene FACE AND HANDS affected Feats: FACE - craniosynostosis (esp bicoronal --> brachycephaly) - flat/concave face (midface growth failure) - shallow bony orbits --> exophthalmos - broad-spaced eyes - pseudomandibular prognathism [quizlet.com]
Indications for orthognathic surgery include: mandibular prognathism; mandibular retrognathia; maxillary excess; maxillary deficiency; and apertognathia (open bite deformity). [aetna.com]
- Anterior Open Bite
III malocclusion with an anterior open bite, and, frequently, a cleft of the soft palate. [emedicine.medscape.com]
Case report of surgical correction of a secondary open bite deformity. [jkamprs.springeropen.com]
- Receding Chin
Background : Micrognathia is usually associated with genetic syndromes, characterized by mandibular hypoplasia causing a receding chin. The overall incidence of micrognathia was 1 per 1600 births, makes it a rare case. [jprjournal.com]
Skin
- Blister
Starts as blistering or wart-like rash, then develops into hyperpigmented swirling macular lesions. [quizlet.com]
Face, Head & Neck
- Mandibular Prognathism
Recently, MDO seems to have emerged as an alternative technique for relieving airway obstruction in paediatric patients with harsh mandibular hypoplasia to avoid tracheotomy and also improve oral eating. « Mandibular Prognathism – Causes, Treatment, and [mandibulartori.com]
Surgical procedures to correct mandibular prognathism and reshaping of the chin. [jkamprs.springeropen.com]
Indications for orthognathic surgery include: mandibular prognathism; mandibular retrognathia; maxillary excess; maxillary deficiency; and apertognathia (open bite deformity). [aetna.com]
Psychiatrical
- Distractibility
Distraction osteogenesis (DO) using intra-oral devices provides an excellent alternative when other surgical techniques do not prove to be satisfactory. [ncbi.nlm.nih.gov]
References Snyder C, Levine G, Swanson M, Brown J: Mandibular lengthening by gradual distraction: Preliminary report. Plast Reconstr Surg 1973;51:506–508. [karger.com]
Rubio-Bueno et al., performed horizontal ascending ramus osteotomy and distracted the ramus to the desired length. After distraction homolateral posterior and lateral open bite occurred in all patients. [omicsonline.org]
Mechanical approaches include compressive loading of the distraction regenerate, increased frequency of small increments of distraction, and compression-distraction. [aetna.com]
Summary : Distraction osteogenesis is one method for correcting congenital mandibular hypoplasia. [jprjournal.com]
Treatment
AIM OF THE WORK: To evaluate the long-term efficacy of intra-oral bilateral DO in the treatment of severe congenital mandibular hypoplasia in early childhood. [ncbi.nlm.nih.gov]
Ohura T Sugihara H Minakawa 66 Utilization of premolded free flaps J MoraisBesteiro F E Aki and M Castro Ferreira 85 Selective skeletonization in the functional and aesthetic correction of the nose A Mastroianni 118 Split calvarial bone grafting in the treatment [books.google.com]
The surgical treatment depends on the degree of deformity. [westvillageplasticsurgery.com]
Treatment is aimed at improving the facial aesthetics as well as the functional bite (occlusion). Dr. [craniony.com]
Deferring treatment until the patient is closer to completion of facial growth (girls, 15 years old; boys, 17–18 years old) helps minimize subsequent contralateral normal growth effect on the treatment outcome. [drlarrywolford.com]
Prognosis
Prognosis Prognosis is variable and depends on the presence and severity of associated cardiovascular, neurological and other complications. [patient.info]
The overall prognosis is highly variable dependent on the presence of other associated anomalies. Distraction osteogenesis is a surgical procedure that may be helpful. [texaschildrens.org]
[…] operations for improving velopharyngeal speech problems H Salo M L Haapanen J Hukki J Rautio 511 Flap skin graft 563 Basic research 618 Surgical anatomy of the orbit of Korean adults K Hwang and S H Baik 631 cmyc Oncoprotein acts as a marker of poor prognosis [books.google.com]
The prognosis is generally favourable. We present a very rare case report of bony fusion between the maxillary and mandibular alveoli without any other associated anomaly. [ispub.com]
Thus, corroborating above statements that hypoglossia with limb anomalies has a poor prognosis. Tongue is the most agile, adept and versatile appendage in the human body. [ijdr.in]
Etiology
• Cause is unknown, but local circulating problems, endocrine disturbances, and trauma have been suggested as possible etiologic factors. 38. [slideshare.net]
It often appears during puberty affecting predominantly males. [6] The exact etiology of coronoid hyperplasia is not yet elucidated, but several theories have been postulated, including hyperactivity of the temporal muscle that causes reactive elongation [mjdrdypu.org]
[…] interstitial and granulonodulo alveolar pattern 324 Interstitialreticular pulmonary pattern 326 Disseminated interstitial pneumonitis 327 The miliary pattern of pneumonia 328 Short linear andor wedgeshaped densities 329 Pulmonary edema in infancy and childhood Etiology [books.google.com]
Treacher Collins syndrome: etiology, pathogenesis and prevention. Eur J Hum Genet. 2009;17:275-283. http://www.ncbi.nlm.nih.gov/pubmed/19107148 Jones NC, Lynn ML, Gaudenz K, et al. [rarediseases.org]
Stanojevic, M, Stipoljev, F: Oculoauriculo-vertebral (Goldenhar) spectrum associated with pericentric inversion 9: Coincidental findings or etiologic factor? J Craniofac Genet Dev Biol 20: 150 – 154, 2000. Google Scholar 27. [journals.sagepub.com]
Epidemiology
Each age-specific section covers the physical, cognitive, emotional, and social changes that children experience, as well as the epidemiology of dental disease at that age. [books.google.com]
The epidemiology of anotia and microtia. J Med Genet. 1996;33(10):809-813. Mastroiacovo P, Corchia C, Botto LD, Lanni R, Zampino G, Fusco D. Epidemiology and genetics of microtia-anotia: a registry-based study on over one million births. [journalofethics.ama-assn.org]
Epidemiology Incidence is approximately 1 in 35,000 to 1 in 56,000 births. However, the incidence is higher (around 1 in 1,000) in those children with congenital deafness. [ 1 ] The male:female ratio is 3:2. Most cases are sporadic. [patient.info]
Tempromandibular joint disorders Causes & epidemiology In 1930’s, JB Costen, an otolaryngologist, stated that TMD is a different disease process from otalgia, and is a condition derived from structural malalignment between mandible and cranium which requires [jkamprs.springeropen.com]
Pathophysiology
Pierre Robin syndrome pathophysiology of obstructive episodes. Laryngoscope 1969; 79:547-60. 13. Moyers RE, Enlow DH. Growth of the craniofacial skeleton. In: Moyers RE, editor. Handbook of Orthodontics. 4 th ed. [jofs.in]
Familiarity with craniofacial embryology and its associated effects on resultant anatomy also leads to a better understanding of the pathophysiologic basis of craniofacial syndromes. [ajnr.org]
Int J Oral Maxillofac Surg 28:411–8 PubMed View Article Google Scholar Gunson MJ, Arnett GW, Milam SB (2012) Pathophysiology and pharmacologic control of osseous mandibular condylar resorption. [jkamprs.springeropen.com]
Prevention
Other chapters explore the examination, treatment planning, radiographic concerns, prevention, trauma, restorative dentistry, pulp therapy, orthodontics, and behavior management of each age range. [books.google.com]
Prevention of Treacher Collins syndrome craniofacial anomalies in mouse models via maternal antioxidant supplementation. [rarediseases.org]
Fortunately, you can prevent many tooth disorders by taking care of your teeth and keeping them clean. [icdlist.com]
In children, the bone dense barriers may not yet have developed to the point where this prevention occurs. [scielo.br]
Therefore there may be no prevention techniques available. Treatment: Treatment for mandibular hypoplasia requires reconstructive surgery. [medigoo.com]