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Original Research

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Evaluation of TMJ by conventional transcranial radiography and indirect digitized images to determine condylar position in primary dentition

  • Luciano José Pereira1
  • Leonardo Rigoldi Bonjardim1
  • Paula Midori Castelo1
  • Francisco Haiter Neto2
  • Maria Beatriz Duarte Gavião2,*,

1Oral Physiology Department, Piracicaba Dental School - State University of Campinas (FOP/UNICAMP), Piracicaba, SP, Brazil

2Department of Oral Diagnosis, Piracicaba Dental School - State University of Campinas (FOP/UNICAMP), Piracicaba, SP, Brazil

DOI: 10.17796/jcpd.28.3.0427191377v71765 Vol.28,Issue 3,July 2004 pp.233-237

Published: 01 July 2004

*Corresponding Author(s): Maria Beatriz Duarte Gavião E-mail: mbgaviao@fop.unicamp.br

Abstract

The aim of this study was to evaluate temporomandibular joint radiographs of children in primary dentition,

obtained by conventional transcranial radiography, indirect digitization, digitized images using 3D

and brightness/contrast tools. Condyle position was also determined measuring anterior, superior and posterior

joint space. The X-Ray machine GE-1000 and the head positioner Accurad 200 were used. Radiographs

were digitized using a scanner with transparency and registered in Adobe Photoshop 5.0. Images

were evaluated by four examiners as follows: 0 – unacceptably quality; 1 – poorly diagnostic quality;

2 – optimal visualization quality. Articular space was measured using a digital caliper.A significant difference

(Sign Test) was found between conventional radiography and the remaining modalities (Conventional/

Unenhanced p<0.001; Conventional/3D p<0.001; Conventional/Brightness and Contrast p=0.017).

The mean distance of anterior, superior and posterior regions was 2.2(0.5, 3.5(0.9 and 3.9(1.2mm, respectively.

Conventional and brightness/contrast digitized radiographs showed higher diagnostic quality. The

posterior joint space was larger than the anterior one, demonstrating anterior condylar position.


Cite and Share

Luciano José Pereira,Leonardo Rigoldi Bonjardim,Paula Midori Castelo,Francisco Haiter Neto,Maria Beatriz Duarte Gavião. Evaluation of TMJ by conventional transcranial radiography and indirect digitized images to determine condylar position in primary dentition. Journal of Clinical Pediatric Dentistry. 2004. 28(3);233-237.

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