Abstract
BackgroundThe aim of the study was compare the sensitivity and measurements obtained from teeth with apical lesions scheduled for periapical surgery using three different diagnostic methods: periapical radiography (Gendex Expert DC), panoramic radiography (Planmeca® Promax 3D Classic) and cone beam computed tomography (CBCT) (Planmeca® Promax 3D Classic).Material and MethodsThis cross-sectional study involved 35 patients (45 teeth) scheduled for periapical surgery in which periapical radiographs, panoramic radiographs and CBCT scans had been obtained. The images were used to analyze the maximum vertical and horizontal dimension and the resulting areas of the periapical lesions based on the three diagnostic methods.ResultsThe two-dimensional techniques (periapical radiography and panoramic radiography) yielded a sensitivity of 82% versus 100% in the case of CBCT. The mean vertical dimension of the apical areas was 5.48 mm with periapical radiography and 5.04 mm with panoramic radiography – the difference with respect to CBCT being statistically significant (6.36 mm for the coronal sections). There were no significant differences among the three techniques in terms of horizontal dimension (p>0.05) or lesion area.ConclusionsThe sensitivity of periapical radiolucencies detected using CBCT was significantly greater than with the two-dimensional imaging techniques. Significant differences between the latter and CBCT were only observed in the case of the vertical measurements. Key words:Periapical lesion, apicoectomy, CBCT, periapical radiography, panoramic radiography.
Highlights
Apical periodontitis is defined as radiolucency associated to the most apical portion of the root of the tooth and measuring at least twice as wide as the normal periodontal width [1]
The sensitivity of periapical radiolucencies detected using cone beam computed tomography (CBCT) was significantly greater than with the two-dimensional imaging techniques. Significant differences between the latter and CBCT were only observed in the case of the vertical measurements
In keeping with the above-mentioned observations, the present study compares: (i) the sensitivity to detect apical lesions in teeth scheduled for periapical surgery and (ii) the size of these lesions, using three different radiographic diagnostic techniques: periapical radiography, panoramic radiography and CBCT
Summary
The sensitivity of periapical radiolucencies detected using CBCT was significantly greater than with the two-dimensional imaging techniques.
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