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:: دوره 1، شماره 1 و 1 - ( مجموعه مقالات ارتودنسی 1390 ) ::
جلد 1 شماره 1 و 1 صفحات 0-0 برگشت به فهرست نسخه ها
Comparison of cone-beam computed tomography and periapical radiography for detecting simulated apical root resorption
چکیده:   (1705 مشاهده)

 Objective:  

  To compare the diagnostic accuracy between cone-beam computed tomography (CBCT) and periapical radiography for detecting simulated external apical root resorption (EARR) in vitro.

 Materials and Methods:

  The study sample consisted of 160 single-rooted premolar teeth for simulating EARR of varying degrees according to four setups: no (intact teeth), mild (cavity of 1.0 mm in diameter and depth on root surface), moderate (0.4 mm, 0.8 mm, 1.2 mm, and 1.6 mm root shortening), and severe (2.4 mm, 2.8 mm, 3.2 mm, and 3.6 mm root shortening). Two groups of radiographic images were obtained via CBCT and periapical radiography. The absence or presence and the severity for all resorption lesions were evaluated blindly by two calibrated observers.

 Results:

 With the CBCT method, the rates of correct classification of no, mild, moderate, and severe EARR were 96.3%, 98.8%, 41.3%, and 87.5%, respectively with the periapical radiography method, the rates were 82.5%, 41.3%, 68.8%, and 92.5%, respectively. Highly significant differences were found between the two imaging methods for detection of mild (P < .001), moderate (P < .001), and all EARR (P < .001). For detection of all EARR, the sensitivity and specificity values were 75.8% and 96.3% for CBCT, compared with 67.5% and 82.5% for periapical radiography.

 Conclusion:

  CBCT is a reliable diagnostic tool to detect simulated EARR, whereas periapical radiography underestimates it. However, if a periapical radiograph is already available to the diagnosis of EARR, CBCT should be used with extreme caution to avoid additional radiation exposure.


 Source: The Angel Orthodontists

 Full Text

واژه‌های کلیدی: Cone-beam computed tomography، Apical root resorption، Periapical radiography
     
نوع مطالعه: پژوهشي | موضوع مقاله: ارتودنسی
دریافت: 1392/6/31 | انتشار: 1390/10/25
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Comparison of cone-beam computed tomography and periapical radiography for detecting simulated apical root resorption. 1. 1390; 1 (1 و 1)

URL: http://idai.ir/article-1-1956-fa.html



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Creative Commons License این مقاله تحت شرایط Creative Commons Attribution-NonCommercial 4.0 International License قابل بازنشر است.
دوره 1، شماره 1 و 1 - ( مجموعه مقالات ارتودنسی 1390 ) برگشت به فهرست نسخه ها
جامعه اسلامی دندانپزشکان Islamic Dental Association of IRAN

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