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Journal of Indian Society of Pedodontics and Preventive Dentistry Official publication of Indian Society of Pedodontics and Preventive Dentistry
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 ORIGINAL ARTICLE
Year : 2009  |  Volume : 27  |  Issue : 4  |  Page : 202-204

The effect of posterior bite-plane on dentoskeletal changes in skeletal open-bite malocclusion


1 Department of Orthodontics, Islamic Azad University, Tehran, Iran
2 Department of Orthodontics, Tehran University of Medical Sciences, Tehran, Iran
3 Private Practice, Tehran, Iran

Correspondence Address:
S Emami Meibodi
Apartment 8, No.5, Jalinus Alley, Yarmohammadi Alley, Kolahdouz St., Shariati Ave., Tehran
Iran
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0970-4388.57653

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With regard to the vertical problem of skeletal open-bite malocclusion, this study was undertaken to evaluate the effect of upper posterior bite-plane on the dentoskeletal changes of skeletal open-bite malocclusion. The material consisted of 23 patients, with skeletal open-bite in mixed dentition period. The patients were treated by upper removable posterior bite plane appliance. Before and after treatment lateral cephalogram were obtained. Certain angular and linear variables were measured. The pre-treatment and post-treatment measurements were compared using paired t-test to evaluate the significance of the results. There were significant changes in vertical incisor overlap following treatment with upper posterior bite plane. Increase of PFH, Jaraback index, UAFH/LAFH ratio were significant .There was significant decrease in SN-MP angle. The dentoalveolar heights of the upper and lower anterior segment were increased as well as the distance of the lower molars to mandibular plan. Only the maxillary first molar height did not change.






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