A comparison of different treatment techniques for posterior crossbite in the mixed dentition. American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics. [Am J Orthod Dentofacial Orthop] Journal article | | Title | A comparison of different treatment techniques for posterior crossbite in the mixed dentition. | | Author(s) | Erdinç AE, Ugur T, Erbay E | | Institution | Department of Orthodontics, Faculty of Dentistry, Istanbul University, Izmir, Turkey. | | Source | Am J Orthod Dentofacial Orthop 1999 Sep; 116(3):287-300. | | MeSH | Case-Control Studies
Cephalometry
Chi-Square Distribution
Child
Comparative Study
Episode of Care
Humans
Malocclusion
Orthodontic Appliances
Orthodontics, Corrective
Palatal Expansion Technique
Retrospective Studies
Statistics, Nonparametric
| | Abstract | In this retrospective investigation, the changes occurring during the treatment of patients with posterior crossbite in the mixed dentition with the use of expansion plate and quad-helix appliances were evaluated and compared with those resulting from growth and development occurring in a control group of patients of similar age and type of malocclusion. The expansion plate group consisted of 13 patients, the quad-helix group of 14 patients, and the control group consisted of 10 children with transverse posterior crossbites in the mixed dentition. The research material was formed from orthodontic models and lateral and frontal cephalometric radiographs from 37 children. It was observed in this investigation that transverse expansion is achieved by both the expansion plate and quad-helix appliances. However, the average period of treatment was 1.2 years for the expansion plate, and 0.6 years for the quad-helix appliance. Although posterior crossbite was corrected in a fairly short period of time, the quad helix appliance caused considerable buccal tipping of the maxillary first permanent molars. | | Language | eng | | Pub Type(s) | Journal Article
| | PubMed ID | 10474101 |
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