A case of anterior open bite developing during adolescence

Imaging studies have reported on the relationship between temporomandibular joint (TMJ) degeneration and facial deformity. These studies have suggested that mandibular growth is affected by TMJ degeneration, resulting in altered skeletal structure as mandibular retrusion. However, there are very few...

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Bibliographic Details
Published inJournal of orthodontics Vol. 28; no. 1; p. 19
Main Authors Yamada, K, Satou, Y, Hanada, K, Hayashi, T, Ito, J
Format Journal Article
LanguageEnglish
Published England 01.03.2001
Subjects
Bone Resorption - complications
Bone Resorption - pathology
Bruxism - complications
Cephalometry
Child
Female
Humans
Joint Dislocations - complications
Joint Dislocations - pathology
Magnetic Resonance Imaging
Malocclusion - etiology
Malocclusion - physiopathology
Mandibular Condyle - pathology
Maxillofacial Development
Osteoarthritis - complications
Osteoarthritis - pathology
Temporomandibular Joint Disorders - complications
Temporomandibular Joint Disorders - pathology
Tongue Habits - adverse effects
Vertical Dimension
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Summary:Imaging studies have reported on the relationship between temporomandibular joint (TMJ) degeneration and facial deformity. These studies have suggested that mandibular growth is affected by TMJ degeneration, resulting in altered skeletal structure as mandibular retrusion. However, there are very few longitudinal case reports on TMJ osteoarthrosis (OA). Progressive open bite occurred in an adolescent patient with TMJ OA. Cephalometric analysis showed a downward and backward rotated mandible, and a labial inclination of the upper incisor. Magnetic resonance imaging showed internal derangement without reduction and erosion in the right and the left condyles. Although the cause of open bite is unclear in this case, tongue thrusting, and internal derangements in the temporomandibular joint were suspected as causes of the open bite.
ISSN:1465-3125
DOI:10.1093/ortho/28.1.19