Extreme skeletal open bite correction with vertical elastics

Abstract

Severe skeletal open bites may be ideally treated with a combined surgical-orthodontic approach. Alternatively, compensations may be planned to camouflage the malocclusion with orthodontics alone. This case report describes the treatment of an 18-year-old man who presented with a severe open bite involving the anterior and posterior teeth up to the first molars, increased vertical dimension, bilateral Class III molar relationship, bilateral posterior crossbite, dental midline deviation, and absence of the maxillary right canine and the mandibular left first premolar. A treatment plan including the extraction of the mandibular right first premolar and based on uprighting and vertical control of the posterior teeth, combined with extrusion of the anterior teeth using multiloop edgewise archwire mechanics and elastics was chosen. After 6 months of alignment and 2 months of multiloop edgewise archwire mechanics, the open bite was significantly reduced. After 24 months of treatment, anterior teeth extrusion, posterior teeth intrusion, and counterclockwise mandibular rotation were accomplished. Satisfactory improvement of the overbite, overjet, sagittal malocclusion, and facial appearance were achieved. The mechanics used in this clinical case demonstrated good and stable results for open-bite correction at the 2-year posttreatment follow-up. (Angle Orthod. 2017;87:911-923.)

3D superimposition of craniofacial imaging—The utility of multicentre collaborations

“…The Dental and Craniofacial Bionetwork for Image Analysis (DCBIA‐https://sites.google.com/a/umich.edu/dentistry-image-computing/) group is composed by researchers, clinicians, computer scientists and engineers with the aims to (a) develop image analysis tools specifically to answer dentistry‐related clinical questions; (b) train researchers interested in those tools. These efforts resulted in international collaborations with South America, Europe, Asia and Oceania, not to mention other centres within the United States, with a large variety of application of the tools as follows: craniofacial anomalies, asymmetry, surgical outcomes and growth changes . Strengthening the relationship with other centres may eventually facilitate the development of big data that require secure but easily accessible de‐identified databases, with storage, mining and analytics capabilities.…”

Corrección de maloclusión clase II esqueletal con colapso maxilar y mordida abierta anterior mediante expansor Hass

“…Entre los tratamientos se encuentran los aparatos para romper el hábito, los bloques de mordida, arco extraoral, mentoneras de tirante vertical, los elásticos verticales y la corrección quirúrgica. [10][11][12][13][14][15] Se ha reportado que la prevalencia de mordida abierta en niños estadounidenses fue de 3.5% en la población blanca y 16.5% en la población afroamericana. 16 Entre los factores ambientales se incluyen variaciones en la erupción dental, crecimiento alveolar, crecimiento neuro-www.medigraphic.org.mx muscular desproporcionado o función neuromuscular aberrante relacionada con movimientos anormales de la lengua, hábitos orales o ambos.…”

The National Dental Practice-Based Research Network adult anterior open bite study: A description of the practitioners and patients

“…While surgical correction has typically been recommended to adults with severe open bites, 13 recent case reports have illustrated successful correction of significant open bites in adults using other techniques, including aligners, 7 MEAW with elastics, 14 and TADs. 15 This has resulted in confusion regarding the outcomes that may be routinely expected with these various techniques.…”