Estudo cefalometrico em telerradiografia frontal de alterações induzidas por expansão da maxila em adultos

AUTOR(ES)
DATA DE PUBLICAÇÃO

2004

RESUMO

The maxillary expansion is an procedure that aims the enlargement of the maxillary dental arch for corrections of occlusal deviations. Greatly utilized in children, there are quarrels concerning its efficacy in adults, when the facial-cranium development already reached its bone maturity. The present study has the objective of evaluating cephalometric modifications originated from the maxillary expansion in adult patients, observing the following linear measurements: facial breadth, maxillary breadth, nasal breadth, mandibular breadth, molar-maxillary breadth and nasal height. The sample constituted of 24 frontal teleradiographies taken before and immediately after the expansions obtained in 12 patients, male and female, with age between 18 years and two months and 37 years and eight months. All of the patients were submitted to slow expansion of the maxillary bones with the use of removable and dentmucosupport appliance. The coupled statistical test of Wincoxon was utilized for related samples and 5% significance level. A medial increase of 1.92 mm occurred on the nasal breadth and 2.5mm on the nasal height. The medial increase on the maxillary breadth and mandibular breadth linear measurements was 2.42 mm and 1.92 mm, respectively. There was a medial increase of 1.41 mm on the facial breadth and 2.00 mm on the molar-maxillary breadth, considering that such alterations were statistically significant. Based on the obtained results, it was concluded that the use of the slow maxillary expansion causes the increase of the facial measurements in adults

ASSUNTO(S)

ortopedia funcional dos maxilares cefalometria ortodontia odontologia maxilares

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