Diagnostic performance of cone-beam computed tomography on detection of mechanically-created artificial secondary caries
Imaging Science in Dentistry
;
: 143-150, 2011.
Article
in English
| WPRIM
| ID: wpr-60126
ABSTRACT
PURPOSE:
The aim of this study was to compare the diagnostic accuracy of cone-beam computed tomography (CBCT) images and bitewing images in detection of secondary caries. MATERIALS ANDMETHODS:
One hundred and twenty proximal slots of Class II cavities were randomly prepared on human premolar and molar teeth, and restored with amalgam (n=60) and composite resin (n=60). Then, artificial secondary caries lesions were randomly created using round steel No. 4 bur. The teeth were radiographed with a conventional bitewing technique and two CBCT systems; Pax-500ECT and Promax 3D. All images were evaluated by five observers. The area under the receiver operating characteristic (ROC) curve (Az) was used to evaluate the diagnostic accuracy. Significant difference was tested using the Friedman test (p value<0.05).RESULTS:
The mean Az values for bitewing, Pax-500ECT, and Promax 3D imaging systems were 0.882, 0.995, and 0.978, respectively. Significant differences were found between the two CBCT systems and film (p=0.007). For CBCT systems, the axial plane showed the greatest Az value.CONCLUSION:
Based on the design of this study, CBCT images were better than bitewing radiographs in detection of secondary caries.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Steel
/
Tooth
/
Bicuspid
/
ROC Curve
/
Radiography, Bitewing
/
Dental Caries
/
Cone-Beam Computed Tomography
/
Molar
Type of study:
Diagnostic study
/
Prognostic study
Limits:
Humans
Language:
English
Journal:
Imaging Science in Dentistry
Year:
2011
Type:
Article
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