Monday, October 8, 2012
Sindile Gcelu Theory 2
Without referring to any of the study material that deals with the historical and functional development of the Functional Appliance, give your own evaluation or opinion as to the effectiveness of these appliancesAccording to Graber & Neumann (1997) indicates that, the maximum power of the muscle activity is not as important as the orderly coordination of the manifold functions. Malocclusion thus must be regarded as a disturbance of that coordination, there may be a cause of the in coordinate activity. Of no minor importance may be the psychological component, producing Para functional influences by which the action of the finger, tongue, lips, cheeks, etc. will produce deformation.
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If one expects a correction of the saggital malrelationship in a more or less similar way to that obtained by fixed appliances, then functional appliances are more effective. Functional appliances are best used to correct dento alveolar and skeletal Class II malocclusion. Skeletal corrections are best obtained in cases in which a favourable direction of growth is expected and an increased lower anterior facial height is not detrimental to the profile. Following the use of functional appliances, another stage of fixed appliance therapy is usually needed to properly align the dentition and obtain optimal functional occlusion.
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