Rapid maxillary expansion with incisor intrusion: a study of vertical control.
Am J Orthod Dentofacial Orthop
; 115(5): 576-82, 1999 May.
Article
en En
| MEDLINE
| ID: mdl-10229893
ABSTRACT
This is a prospective study of 20 consecutively treated patients needing maxillary expansion and incisor intrusion. The patients were treated with a bonded maxillary expansion appliance, intrusion of the incisors with either a one-piece or three-piece base arch and anchorage augmented by the use of vertical-pull chincup therapy. Because rapid palatal expansion and intrusion of maxillary incisors both produce extrusion of posterior teeth, this study was undertaken to determine if a combination of controlled forces could prevent undesirable increases in vertical dimension. The maxillae were widened approximately 8 mm, the incisors were intruded 3 mm, the maxillary molars stayed the same or were intruded slightly, and the mandibular plane angle stayed essentially the same. In addition, A-point was retracted slightly and the occlusal plane was rotated in a counter-clockwise direction.
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Base de datos:
MEDLINE
Asunto principal:
Técnicas de Movimiento Dental
/
Técnica de Expansión Palatina
/
Incisivo
Tipo de estudio:
Observational_studies
Límite:
Child
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Am J Orthod Dentofacial Orthop
Asunto de la revista:
ODONTOLOGIA
/
ORTODONTIA
Año:
1999
Tipo del documento:
Article