Functional determinants of craniofacial size and shape.

Functional determinants of craniofacial size and shape.
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颅面大小和形状的功能决定因素。

DOI:
10.1093/ejo/2.3.131
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发表时间:
1980
影响因子:
2.6
通讯作者:
McNamaraJr,JA
McNamaraJr,JA
中科院分区:
医学2区
文献类型:
--
作者:
McNamaraJr,JA

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Much of the orthodontic treatment undertaken throughout the world, and particularly in the United States, is aimed at correcting dentoalveolar and skeletal malrelationships. With the current level of fixed appliance refinement, we have become quite adept at achieving excellent occlusions. However we often do not consider one important fact when designing our treatment regime: the craniofacial complex maintains a state of homeostasis regardless of whether structural balance or imbalance exists. Abnormal skeletal or dentoalveolar configurations are counterbalanced by abnormal or atypical patterns of masticatory and perioral muscle function and by pressures of the other associated soft tissue. Therefore, any given overall form-function relationship is stable, even though each of its individual components may have an abnormal configuration or pattern of activity. This stability is demonstrated by the relative consistency of the overall skeletal and dentoalveolar relationships during the growth period; ie, barring environmental insult or therapeutic intervention, the individual in late adolescence generally resembles himself as he appeared many years earlier.The aim of most fixed banded therapy is the correction of skeletal and dentoalveolar malrelationships, with little or no attention paid to co-existing abnormal functional patterns. Many clinicians naively assume that these abnormal functional patterns will correct spontaneously if structural balance is obtained. However, in cases in which only
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