Dentoalveolar response after protraction mask and expansion in males and females in the mixed dentition.
The purpose of this study was to determine the dentoalveolar response of class III patients in the mixed and late mixed dentition phases fitted with a protraction mask and expansion. The before and after cephalometric records of 74 patients divided by sex were analyzed at ages 6 to 9 and 9 to 12 years to assess the dentoalveolar changes. Data was correlated by means of paired t tests and Scheffe's multiple contrasts. No significant changes were seen in all dentoalveolar relationships between the ages of 6 to 9 years and 9 to 12 years and between males and females. Maxillary teeth tended to be proclined, while mandibular teeth to become retroclined.
Saadia
M
M
Department of Pediatric Dentistry, Department of Pediatric Dentistry, Universidad Tecnológica de México, Mexico City.
Torres
E
E
D000367:Age Factors; D002508:Cephalometry; D002648:Child; D003481:Cuspid / Q000473:pathology; D003818:Dentition, Mixed; D005115:Extraoral Traction Appliances; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007091:Image Processing, Computer-Assisted; D007180:Incisor / Q000473:pathology; D008297:Male; D008313:Malocclusion, Angle Class III / Q000473:pathology / Q000628:therapy*; D008334:Mandible / Q000473:pathology*; D008437:Maxilla / Q000473:pathology*; D008963:Molar / Q000473:pathology; D010155:Palatal Expansion Technique / Q000295:instrumentation*; D012737:Sex Factors; D013223:Statistics as Topic; D014070:Tooth / Q000473:pathology*; D014087:Tooth Movement Techniques / Q000295:instrumentation