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Cone beam computed tomography devices in the evaluation of buccal bone in anterior teeth
L L Dantas1, P P Ferreira1, Lsaf Oliveira2
1Department of Prosthetics and Integrated Clinics, School of Dentistry, Federal University of Bahia, Bahia, Brazil.
Objective:
To determine the accuracy of various cone beam computed tomography (CBCT) devices in assessing the buccal bone in anterior teeth.
Material And Methods:
A skull encased in tissue equivalent material was imaged with six CBCT devices: 3D Accuitomo 170 (J. Morita, Japan), CS 9000 3D (Carestream Dental, France), CS 9300 (Carestream Dental, France), Eagle 3D (Dabi Atlante, Brazil), i-CAT Classic (Imaging Sciences International, USA) and Orthophos XG 3D (Sirona Dental System, USA). The exposure and acquisition protocols were determined using the manufacturer's guidelines, the voxel size adjusted as close as possible to 0.2 mm. Cross-sectional images were evaluated randomly, and the buccal bone was assessed.
Results:
The statistics were calculated based on a logistic regression model with the significance level set at 5%. All CBCT devices showed high accuracy; however, observers noted that the accuracy and sensitivity of CS 9300 device were slightly superior.
Conclusion:
The diagnostic performance of all CBCT devices was high for the evaluation of buccal bone in anterior teeth. When the clinical usefulness of an imaging modality is equivalent, the choice of appropriate imaging should be directed towards the modality that delivers the least radiation dose to the patient for a specific diagnostic task.
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