<i>Ex vivo</i>comparison of Galileos cone beam CT and intraoral radiographs in detecting occlusal caries

Rathore, Sonali; Tyndall, Donald A.; Wright, J. T.; Everett, Eric T.

doi:10.1259/dmfr/57329547

Cited by 25 publications

(26 citation statements)

References 25 publications

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“…16 Many studies show that CBCT caries detection rates are approximately equivalent to intraoral modalities for non-restored teeth. 11,[17][18][19][20][21][22][23] A recent review of the literature summarises that CBCT is equivalent to intraoral techniques at detecting clinically relevant caries lesions in minimally restored teeth; however, beam-hardening and streak artefacts from metal objects and dense tooth structure (enamel) are limiting factors. 24,25 Furthermore, increased dose, cost, time and artefact concerns dictate that bitewing radiographs are still the preferred modality for proximal caries detection.…”

Section: Introductionmentioning

confidence: 99%

Ex vivoevaluation of new 2D and 3D dental radiographic technology for detecting caries

Gaalaas¹,

Tyndall²,

Mol³

et al. 2016

Dentomaxillofacial Radiology

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Objectives: Proximal dental caries remains a prevalent disease with only modest detection rates by current diagnostic systems. Many new systems are available without controlled validation of diagnostic efficacy. The objective of this study was to evaluate the diagnostic efficacy of three potentially promising new imaging systems. Methods: This study evaluated the caries detection efficacy of Schick 33 (Sirona Dental, Salzburg, Austria) intraoral digital detector images employing an advanced sharpening filter, Planmeca ProMax ® (Planmeca Inc., Helsinki, Finland) extraoral "panoramic bitewing" images and Sirona Orthophos XG3D (Sirona Dental) CBCT images with advanced artefact reduction. Conventional photostimulable phosphor images served as the control modality. An ex vivo study design using extracted human teeth, ten expert observers and micro-CT ground truth was employed. Results: Receiver operating characteristic analysis indicated similar diagnostic efficacy of all systems (ANOVA p . 0.05). The sensitivity of the Schick 33 images (0.48) was significantly lower than the other modalities (0.53-0.62). The specificity of the Planmeca images (0.86) was significantly lower than Schick 33 (0.96) and XG3D (0.97). The XG3D showed significantly better cavitation detection sensitivity (0.62) than the other modalities (0.48-0.57). Conclusions:The Schick 33 images demonstrated reduced caries sensitivity, whereas the Planmeca panoramic bitewing images demonstrated reduced specificity. XG3D with artefact reduction demonstrated elevated sensitivity and specificity for caries detection, improved depth accuracy and substantially improved cavitation detection. Care must be taken to recognize potential false-positive caries lesions with Planmeca panoramic bitewing images. Use of CBCT for caries detection must be carefully balanced with the presence of metal artefacts, time commitment, financial cost and radiation dose.

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Section: Introductionmentioning

confidence: 99%

Ex vivoevaluation of new 2D and 3D dental radiographic technology for detecting caries

Gaalaas¹,

Tyndall²,

Mol³

et al. 2016

Dentomaxillofacial Radiology

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“…Among those advantages, the elimination of superposition, multiplanar reconstruction, high resolution due to its high image contrast and three-dimensional visualization of the structure of interest stand out from other modalities of radiographic exams [3][4][5][6][7] . The small and isotropic voxels of the CBCT images contribute to the achievement of images with higher details, sharpness, and high definition; although a smaller voxel size can be related to higher exposure time and higher tube current, demanding higher radiation doses than intraoral radiography [13][14] .…”

Section: Discussionmentioning

confidence: 99%

“…Previous studies suggested that CBCT images could be applied to different areas of dentistry, including caries detection, due to its images possibility of visualizing the dental structure in different image planes [3][4][5][6] . Authors diverge on the superiority of CBCT images against conventional radiographic images for the detection of caries lesions, especially interproximal images.…”

Section: Discussionmentioning

confidence: 99%

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The effect of different exposure parameters on proximal caries detection using the Kodak 9000 3D CBCT system

Gonzaga

Peixoto

Oliveira

et al. 2017

RGO, Rev. Gaúch. Odontol.

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ObjectiveThe objective of study was to evaluate the diagnostic quality of CBCT images for caries lesions detection using different exposure parameters. MethodsSixty extracted human teeth were selected and scanned using Kodak 9000 3D CBCT system, with the following exposure parameters combinations: 74 kV, 10mA; 74 kV, 12mA; 74 kV, 8 mA; 70 kV, 10 mA; 70kV, 12 mA; 70 kV e 8 mA; 70 kV, 6.3 mA. Two observers evaluated the images for caries presence using CS 3D Imaging Software. Each observer scored the proximal surfaces of each tooth on a 5-point scale. The scores were compared to histological sections used as gold standard. Accuracy for caries lesion detection was assessed for each exposure parameter combination and evaluated by means of ROC curve analysis. ResultsThe mean values for the areas under the ROC curves for each exposure parameter combination varied from 0.35 to 0.60. There was no statistical significant difference among protocols 1,2,4, 6 and 7. However, protocols 3 and 5 differed from all protocols. ConclusionAlthough the highest dose protocol was the most efficient for proximal caries detection, the lowest dose protocol should be chosen based on the ALADA principle.

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“…Recent studies about proximal carries detection [13][14][15][16][17][18][19][20][21][22] and occlusal carries detection by CBCT [16,[21][22][23][24][25] are controversial. Most of the articles concluded that CBCT is not better than intraoral films in carries detection.…”

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confidence: 99%

A Comparative Study of the Diagnostic Accuracy of Cone Beam Computed Tomography and Phosphor Storage Plate for Detection of Noncavitated Occlusal Caries

Ramezani¹,

Salemi²,

Shokri³

et al. 2016

Dent. Med. Probl.

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More than 75% of dental caries in children and adolescents occurs in occlusal surfaces [1]. Studies over the past two decades have shown that a significant portion of occlusal caries could not be diagnosed in the early stages because of various reasons including dentists' carelessness and inappropriate instruments [2]. Researchers believe that the diagnosis of occlusal caries was more difficult AbstractBackground. Recent Studies have shown that a significant portion of occlusal caries could not be diagnosed in the early stages because of various reasons. Early detection of superficial caries is important for preventive dentistry. Objectives. This study aims to compare the quality of occlusal caries detection using digital phosphor storage plate (PSP) and cone beam computed tomography (CBCT). Material and Methods. For this experimental study 88 human molars were used. The clinical appearances of the occlusal surfaces of the teeth ranged from sound to discolor with no macroscopic cavitation. They were imaged using a digital system (PSP) and CBCT (NewTom 3G). Three independent observers assessed the images twice. ROC curve was used for assessment of the imaging systems accuracy for the detection of caries. A histological investigation was used as a gold standard. Methods were analyzed by ANOVA and t-test with p value of 0.05. Tests were performed with STATA software (version 11). Intra and inter observers agreement for each image set was assessed by ICC. Results. The average of observers results in caries detection with PSP images was 0.34 (P value = 0.208) and with CBCT images was equal to 0.45 (P value = 0.722). This showed that the diagnostic accuracy of CBCT and PSP was not acceptable compared with the gold standard. Although CBCT was a little higher than PSP on ROC curve, statistically there were no significant differences between both images in detecting occlusal caries. The ICC results showed acceptable agreement between observers in caries detection by CBCT and PSP, but the agreement between observers using these image modalities and the gold standard was poor. Conclusions. The accuracy of NewTom 3G CBCT for detecting occlusal caries was slightly better than PSP (not significantly), but none of them had the sufficient diagnostic accuracy for detecting incipient occlusal caries. Therefore, in these cases it is necessary to use other methods to improve detection (Dent. Med. Probl. 2016, 53, 2, 186-192).

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Ex vivocomparison of Galileos cone beam CT and intraoral radiographs in detecting occlusal caries

Abstract: Based on the results we conclude that the Sirona CBCT unit cannot be used for the sole purpose of looking at occlusal caries.

Cited by 25 publications

References 25 publications

Ex vivoevaluation of new 2D and 3D dental radiographic technology for detecting caries

Ex vivoevaluation of new 2D and 3D dental radiographic technology for detecting caries

The effect of different exposure parameters on proximal caries detection using the Kodak 9000 3D CBCT system

A Comparative Study of the Diagnostic Accuracy of Cone Beam Computed Tomography and Phosphor Storage Plate for Detection of Noncavitated Occlusal Caries

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