A comparison of the diagnostic accuracy of<i>in vivo</i>and<i>in vitro</i>photostimulable phosphor digital images in the detection of occlusal caries lesions

Kamburoğlu, Kıvanç; Şenel, Buğra; Yüksel, Selcen; Özen, Tuncer

doi:10.1259/dmfr/91657756

Cited by 15 publications

(13 citation statements)

References 25 publications

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“…These modalities also make it possible to measure caries depth, which can be useful in the diagnosis, treatment planning, management, and follow-up of dental caries. However, because intra-oral systems can only provide two-dimensional information about dental tissue and disease, their ability to measure caries depth is affected by beam angulation, imaging settings, and patient-related factors [10][11][12][13][14][15]. Cone-beam computerized tomography (CBCT) was introduced in response to the high demand for a technique that could provide three-dimensional data at the tooth level.…”

Section: Introductionmentioning

confidence: 99%

Occlusal Caries Depth Measurements Obtained by Five Different Imaging Modalities

et al. 2010

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The study aimed to assess the accuracy and reproducibility of occlusal caries depth measurements obtained from different imaging modalities. The study comprised 21 human mandibular molar teeth with occlusal caries. Teeth were imaged using film, CCD, two different cone-beam computerized tomography (CBCT) units and a microcomputer tomography (micro-CT). Thereafter, each tooth was serially sectioned, and the section with the deepest carious lesion was scanned using a high-resolution scanner. Each image set was separately viewed by three oral radiologists. Images were viewed randomly, and each set was viewed twice. Lesion depth was measured on film images using a digital caliper, on CCD and CBCT images using built-in measurement tools, on micro-CT images using the Mimics software program, and on histological images using AxioVision Rel. 4.7. Intra-and inter-rater reliabilities were assessed according to the Bland/Altman method by calculating Intraclass Correlation Coefficients (ICCs). Mean/median values obtained with intraoral systems were lower than those obtained with 3-D and histological images for all observers and both readings. Intra-observer ICC values for all observers were highest for histology and micro-CT. In addition, intra-observer ICC values were higher for histology and CBCT than for histology and intra-oral methods. Inter-observer ICC values for first and second readings were high for all observers. No differences in repeatability were found between Accuitomo and Iluma CBCT images or between intra-oral film and CCD images. Micro-CT was found to be the best imaging method for the ex vivo measurement of occlusal caries depth. In addition, both CBCT units performed similarly and better than intra-oral modalities.

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Section: Introductionmentioning

confidence: 99%

Occlusal Caries Depth Measurements Obtained by Five Different Imaging Modalities

et al. 2010

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“…There also is disagreement in the borderline cases in the method of doing the radiographic diagnosis of the disease [29]. However, past research showed that software enhancement tools that adjust contrast, density, image size, etc., do contribute to the closeness in diagnoses among observers [32].…”

Section: Introductionmentioning

confidence: 88%

“…The fuzziness of X-ray film also produces doubt for diagnosis of boundary line at the apical lesion [31]. Aside from the mentioned drawback, another factor that affects the evaluation of periapical disease is the variation in dentists' assessments [29] [32][33]. For example, research by Lanning [34] had reported that there is significant variability in periodontal diagnosis and treatment planning among dental schools [34].…”

Section: Introductionmentioning

confidence: 99%

Correlation between Quantitative and Qualitative Analysis on Image Quality of Digital Dental X-ray Images

Ahmad¹,

Taib²,

Khalid³

et al. 2012

JCSCM

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Signal to Noise Ratio (SNR) is a quantitative method to measure the effectiveness of contrast enhancement methods. The question is whether this measurement is consistent with a qualitative evaluation of a medical expert. Biomedical Research, including dentistry cases, usually involves medical experts to do the interpretation, and finalize the diagnosis. However, the subjective evaluations create differences of interpretation. There are two factors contributing to the low quality of dental radiographs-the first is because of the nature of the image acquisition process, and the second is the low X-ray dose usage. Due to that, research related to contrast enhancement algorithms is an accepted image processing method to assist medical officers in doing interpretation that is more reliable. Thus, this work presents an analysis of contrast enhancement algorithms (CEA) applied to digital intraoral radiograph images. The enhancement methods used in this study are CEAs, namely: adaptive histogram equalization (AHE), contrast limited adaptive histogram equalization (CLAHE), and sharp contrast limited adaptive histogram equalization (SCLAHE). The objective of this work is to find a correlation between the dentist evaluation and SNR values in determining the image quality based on the rate of abnormalities detected. Fifty-six original intraoral digital dental X-ray images are collected from the Faculty of Dentistry, Universiti Teknologi MARA Malaysia. These images are processed with the mentioned CEAs, resulting in a total of onehundred sixty-six observations. These images are compared against the original images. The method of assessment is through questionnaires where all images are arranged randomly. The observations focused on identifying widened periodontal ligament space (widened PDLs), periapical radiolucency (PR) and loss of lamina dura (loss LD) abnormalities. These are among the main signs of periapical disease. The results show that the SNR value does not reflect the dentist's evaluation in terms of image quality. The SNR values of CLAHE are able to precede other methods. However, SCLAHE is better than the rest based on dentists' evaluations for widened PDLs abnormality.

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“…Moreover, in vivo time efficiency was found to be very good for single radiographs of mandibular third molars. 17 Under in vitro conditions; the diagnostic ability of visual inspection, conventional film, charge-coupled device (CCD) sensor, and PSP sensor were found similar in the diagnosis of proximal lesions in posterior teeth when compared with the histological gold-standard. 4 In order to obtain optimum image quality, an intraoral radiographic examination should be used with aiming equipment.…”

Section: Dentomaxillofac Radiol 48 20180250mentioning

confidence: 96%

Anexvivocomparative study of occlusal and proximal caries using terahertz and X-ray imaging

Kamburoğlu

Karagöz

Altan

et al. 2019

Dentomaxillofacial Radiology

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Objectives: To examine the effectiveness of terahertz (THz) pulsed imaging (TPI) in comparison to intraoral photostimulable phosphor late (PSP) and cone beam CT (CBCT) for the detection of dental caries ex vivo. Methods: Newly extracted 32 human permanent teeth surfaces (16 with caries and 16 without caries) were serially sectioned mesiodistally and imaged by using four image sets as follows: (1) CBCT; (2) PSP; (3) THz movie video; and (4) THz static images. All images were evaluated twice separately by two calibrated observers for the presence/absence of caries using a 5-grade rating/confidence scale. Weighted κ coefficients were calculated. Different image sets were compared with the histological gold-standard using the receiver operating characteristic and area under curves for each image set were compared using χ 2 tests, with a significance level of α = 0.05. Results: Intra-and interobserverκ-values for all image sets were almost excellent ranging between 0.777 and 0.988. Mean Az values of observers and readings were 0.898 for CBCT, 0.888 for PSP images, 0.853 for THz static images and 0.781 for THz video movie. No statistically significant differences (p > 0.05) were found between Az values for the different image sets. When observer scores were evaluated according to caries location again no statistically significant differences (p > 0.05) were found between Az values for the occlusal and proximal caries for the four image sets. conclusions: Terahertz pulsed imaging was found to be successful for the detection of dental caries ex vivo.

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A comparison of the diagnostic accuracy ofin vivoandin vitrophotostimulable phosphor digital images in the detection of occlusal caries lesions

Cited by 15 publications

References 25 publications

Occlusal Caries Depth Measurements Obtained by Five Different Imaging Modalities

Occlusal Caries Depth Measurements Obtained by Five Different Imaging Modalities

Correlation between Quantitative and Qualitative Analysis on Image Quality of Digital Dental X-ray Images

Anexvivocomparative study of occlusal and proximal caries using terahertz and X-ray imaging

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