Effectiveness of intra- and extraoral aids to the bionator. A controlled study within the scope of the "Wuerzburg concept".
J Orofac Orthop
; 60(4): 269-78, 1999.
Article
em En, De
| MEDLINE
| ID: mdl-10450639
ABSTRACT
A bimaxillary device is effective only if the therapeutic position of the mandible is maintained for as long a period as possible by day and night, i.e. the lower jaw cannot "drop" from the construction bite position. One simple means of preventing the mandible from dropping out of the bimaxillary appliance during sleep and thus of ensuring adaptation of the muscles and of the joint structures during the night without impairing active adaptation during daytime functions (speaking, swallowing) is being used at Wuerzburg University Department of Orthodontics In connection with anterior traction, which anchors the bimaxillary appliance to the maxilla, attachments are fixed to the mandibular canines or first premolars, so that the mandible is kept in the therapeutic position during the night by means of elastics. Besides the description of this method, the results of a clinical study on its effectiveness are presented in this paper. In the experimental group (20 Class II/1 patients) treated with the combination of bionator with anterior extraoral traction and up-and-down elastics, the increase of the SNB angle and accordingly of the ANB angle was twice as great as in a control group treated only with bionator and extraoral traction without additional securing of the mandible.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Aparelhos Ativadores
Tipo de estudo:
Clinical_trials
/
Diagnostic_studies
/
Observational_studies
Limite:
Child
/
Humans
Idioma:
De
/
En
Ano de publicação:
1999
Tipo de documento:
Article