A New Periapical Index Based on Cone Beam Computed Tomography
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
19/10/2012
19/10/2012
2008
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Resumo |
The purpose of this study was to evaluate a new periapical index based on cone beam computed tomography (CBCT) for identification of apical periodontitis (AP). The periapical index proposed in this study (CBCTPAI) was developed on the basis of criteria established from measurements corresponding to periapical radiolucency interpreted on CBCT scans. Radiolucent images suggestive of periapical lesions were measured by using the working tools of Planimp software on CBCT scans in 3 dimensions: buccopalatal, mesiodistal, and diagonal. The CBCTPAI was determined by the largest lesion extension. A 6-point (0-5) scoring system was used with 2 additional variables, expansion of cortical bone and destruction of cortical bone. A total of 1014 images (periapical radiographs and CBCT scans) originally taken from 596 patients were evaluated by 3 observers by using the CBCTPAI criteria. AP was identified in 39.5% and 60.9% of cases by radiography and CBCT, respectively (P<.01). The CBCTPAI offers an accurate diagnostic method for use with high-resolution images, which can reduce the incidence of false-negative diagnosis, minimize observer interference, and increase the reliability of epidemiologic studies, especially those referring to AP prevalence and severity. (J Endod 2008;34:1325-1331) |
Identificador |
JOURNAL OF ENDODONTICS, v.34, n.11, p.1325-1331, 2008 0099-2399 http://producao.usp.br/handle/BDPI/26323 10.1016/j.joen.2008.08.013 |
Idioma(s) |
eng |
Publicador |
ELSEVIER SCIENCE INC |
Relação |
Journal of Endodontics |
Direitos |
closedAccess Copyright ELSEVIER SCIENCE INC |
Palavras-Chave | #Apical periodontitis #cone beam computed tomography #diagnostic imaging #endodontic diagnosis #radiography #RADIOGRAPHIC DIAGNOSIS #EXPERIMENTAL LESIONS #OBSERVER AGREEMENT #BONE #RELIABILITY #TEETH #CT #Dentistry, Oral Surgery & Medicine |
Tipo |
article original article publishedVersion |