Influência do tamanho das bases ósseas apicais no apinhamento dentário / Relationship of apical base length and dental crowding

AUTOR(ES)

Oscar Edwin Francisco Murillo-Goizueta

DATA DE PUBLICAÇÃO

2009

RESUMO

The influence of many factors on dental crowding has been studied since long time ago, mainly in its relationship with anterior lower crowding. But, the influence of the apical bases length on the dental crowding was still not clarified. As there are evidences in the literature, it was decided to carry out the present study to investigate the relationship between apical base lengths and maxillary and mandibular anterior dental crowding in Class II malocclusions. Eighty retrospective orthodontic patients, 47 males and 33 females with complete Class II malocclusions were divided into two groups according to mandibular tooth-arch size discrepancy. The maxillary and mandibular apical base lengths and tooth-arch size discrepancies were measured on the initial cephalograms and plaster casts, respectively. The intergroup apical base length and crowding were compared with t tests and correlation between base length and dental crowding was investigated for each dental arch. Results demonstrated that the group with greater crowding had significantly smaller apical base lengths. A negative correlation was also found between apical base length and dental crowding in complete Class II malocclusions.

ASSUNTO(S)

jaws arcada ósseo-dentária tooth migration malocclusion dental arches má oclusão migração de dente

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