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Tomographic mapping of the hard palate and overlying mucosa
Marquezan, Mariana; Nojima, Lincoln Issamu; Freitas, Amanda Osório Ayres de; Baratieri, Carolina; Alves Júnior, Matheus; Nojima, Matilde da Cunha Gonçalves; Araújo, Mônica Tirre de Souza.
  • Marquezan, Mariana; Federal University of Rio de Janeiro. Department of Pedodontics and Orthodontics. Rio de Janeiro. BR
  • Nojima, Lincoln Issamu; Federal University of Rio de Janeiro. Department of Pedodontics and Orthodontics. Rio de Janeiro. BR
  • Freitas, Amanda Osório Ayres de; Federal University of Rio de Janeiro. Department of Pedodontics and Orthodontics. Rio de Janeiro. BR
  • Baratieri, Carolina; Federal University of Rio de Janeiro. Department of Pedodontics and Orthodontics. Rio de Janeiro. BR
  • Alves Júnior, Matheus; Federal University of Rio de Janeiro. Department of Pedodontics and Orthodontics. Rio de Janeiro. BR
  • Nojima, Matilde da Cunha Gonçalves; Federal University of Rio de Janeiro. Department of Pedodontics and Orthodontics. Rio de Janeiro. BR
  • Araújo, Mônica Tirre de Souza; Federal University of Rio de Janeiro. Department of Pedodontics and Orthodontics. Rio de Janeiro. BR
Braz. oral res ; 26(1): 36-42, Jan.-Feb. 2012. ilus, tab
Article in English | LILACS | ID: lil-622922
ABSTRACT
The aim of this study was to measure the thickness of the hard palate and its overlying mucosa using cone-beam computed tomography (CBCT), for purposes of miniscrew placement. The sample comprised 36 CBCT scans of patients aged 12 to 52 years from a database of the Orthodontics Department of the Federal University of Rio de Janeiro. Paracoronal views of the palatal region were reconstructed at 4, 8, 16 and 24 mm posterior to the incisive foramen. In each reconstruction measurements were taken at the suture, 3 mm and 6 mm bilaterally to it. Wilcoxon's test verified the differences between the selected regions. Total bone height decreased from the anterior to the posterior region. In cross sections 4, 16 and 24, bone height decreased from the suture laterally to the 3 mm region and then increased in the 6 mm region. The cortical thickness does not seem to be a concern because it presented a mean thickness of at least 1 mm at all sites evaluated. The measurements of the mucosa thickness decreased from lateral to median and from anterior to posterior regions. The most suitable areas for miniscrew placement in the palate are located 4 mm posterior to the incisive foramen, in the median or paramedian regions 3 mm adjacent to the suture.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Palate, Hard / Mouth Mucosa Limits: Adolescent / Adult / Child / Female / Humans / Male Language: English Journal: Braz. oral res Journal subject: Dentistry Year: 2012 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Rio de Janeiro/BR

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Full text: Available Index: LILACS (Americas) Main subject: Palate, Hard / Mouth Mucosa Limits: Adolescent / Adult / Child / Female / Humans / Male Language: English Journal: Braz. oral res Journal subject: Dentistry Year: 2012 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Rio de Janeiro/BR