Alterações em tecido mole associadas com avanço total de maxila por meio de radiografias cefalometricas / Soft tissue changes after total maxillary advancement by a cephalometric analysis

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

The present study evaluated the soft tissue changes associated with total maxillary advancement in a brazilian population through cephalometric radiographs. Twentysix patients were submitted to presurgical orthodontic maxillary surgery stabilized with a rigid fixation. None of them were submitted to any other adjunctive procedure, such as mandibular osteotomy or genioplasty. Presurgical and late postsurgical radiographs taken apart with a minimum of 6 months interval had been used. All the patients were submitted to advancement of the maxilla between 2 and 9,5 mm, with no more than 3 mm of vertical displacement. The horizontal and vertical displacement of skeletal and soft tissue profile points were analyzed. Soft-tissue change to hard tissue change ratios, as well as correlations analyses, were calculated. The results demonstrated many statistical significant correlations. The soft tissue response to maxillary advancement appeared to be predictable: (1) the upper lip followed the movement of maxillary central incisor in the horizontal plane, with the point labrale superius following by 65.2% and stomion superius, 50.1%; (2) the point A was related to three points at the soft tissue, subnasale, labrale superius and stomion superius, by 60.2%, 58.2% and 58.1%, respectively

ASSUNTO(S)

boca - cirurgia osteotomia face mouth osteotomy face

ACESSO AO ARTIGO

Documentos Relacionados