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A comparative study of the diagnostic accuracy of cone beam computed tomography and intraoral radiographic modalities for the detection of noncavitated caries.

Krzyżostaniak J, Kulczyk T, Czarnecka B, Surdacka A - Clin Oral Investig (2014)

Bottom Line: They were radiographed using the following: conventional film (Kodak Insight), a digital system (PSP plates Digora Optime, Soredex), and a CBCT system (NewTom 3G, Quantitative Radiology).Receiver operating characteristic analysis (Az) was used.CBCT has found a wide application in different fields of dentistry.

View Article: PubMed Central - PubMed

Affiliation: Department of Conservative Dentistry and Periodontology, Poznan University of Medical Sciences, Poznań, Poland, asia_krzyzostaniak@o2.pl.

ABSTRACT

Objectives: The aim of this study was to determine the diagnostic accuracy of cone beam computed tomography (CBCT) in the detection of approximal and occlusal noncavitated carious lesions.

Methods: A total of 135 extracted human posterior teeth were used. They were radiographed using the following: conventional film (Kodak Insight), a digital system (PSP plates Digora Optime, Soredex), and a CBCT system (NewTom 3G, Quantitative Radiology). All the images were assessed by two independent observers twice. Receiver operating characteristic analysis (Az) was used.

Results: NewTom 3G 9″ CBCT was statistically inferior to conventional film and a digital system for the detection of approximal caries. NewTom 3G 9″ had significantly higher Az values than PSP plate (p < 0.05), but there were no statistically significant differences between the Az values for CBCT and film (p > 0.33) for occlusal surface caries.

Conclusion: The diagnostic accuracy of all three tested radiographic systems is low, and it is necessary to use other methods to improve early caries detection.

Clinical relevance: CBCT has found a wide application in different fields of dentistry. The report from a CBCT examination performed for any of these reasons should include all abnormal findings, and the detection of noncavitated caries lesions is especially important because it facilitates the use of noninvasive treatment.

No MeSH data available.


Related in: MedlinePlus

Images of approximal caries obtained by with CBCT (a), storage phosphor plate digital system (b), conventional radiography (c), and histologic section (d) of the same tooth
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Fig1: Images of approximal caries obtained by with CBCT (a), storage phosphor plate digital system (b), conventional radiography (c), and histologic section (d) of the same tooth

Mentions: After the radiographic imaging, a histological investigation was carried out as a reference test (“gold standard”) in order to conduct a true assessment of the extent of any carious lesions present. The histological observation served as the validating criteria for the presence and depth of carious lesions. Each tooth was embedded in acrylic (Duracryl Plus Polymer, Spofa Dental) and sectioned into 700-μm-thick sections in the mesiodistal plane, using a 100-μm diamond band. The sections were attached to a microscope slide with transparent varnish. Two experienced observers (different from those evaluating the radiographic images) assessed the tooth sections using a light microscope at × 40 magnification. The scale was similar to that used to assess the radiographic images. A carious lesion was defined as a demineralized, opaque white, or yellowish brown discolored area in the enamel or dentin (Figs. 1 and 2), and one result (one “truth”) of the histological examination was recorded.Fig. 1


A comparative study of the diagnostic accuracy of cone beam computed tomography and intraoral radiographic modalities for the detection of noncavitated caries.

Krzyżostaniak J, Kulczyk T, Czarnecka B, Surdacka A - Clin Oral Investig (2014)

Images of approximal caries obtained by with CBCT (a), storage phosphor plate digital system (b), conventional radiography (c), and histologic section (d) of the same tooth
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4372683&req=5

Fig1: Images of approximal caries obtained by with CBCT (a), storage phosphor plate digital system (b), conventional radiography (c), and histologic section (d) of the same tooth
Mentions: After the radiographic imaging, a histological investigation was carried out as a reference test (“gold standard”) in order to conduct a true assessment of the extent of any carious lesions present. The histological observation served as the validating criteria for the presence and depth of carious lesions. Each tooth was embedded in acrylic (Duracryl Plus Polymer, Spofa Dental) and sectioned into 700-μm-thick sections in the mesiodistal plane, using a 100-μm diamond band. The sections were attached to a microscope slide with transparent varnish. Two experienced observers (different from those evaluating the radiographic images) assessed the tooth sections using a light microscope at × 40 magnification. The scale was similar to that used to assess the radiographic images. A carious lesion was defined as a demineralized, opaque white, or yellowish brown discolored area in the enamel or dentin (Figs. 1 and 2), and one result (one “truth”) of the histological examination was recorded.Fig. 1

Bottom Line: They were radiographed using the following: conventional film (Kodak Insight), a digital system (PSP plates Digora Optime, Soredex), and a CBCT system (NewTom 3G, Quantitative Radiology).Receiver operating characteristic analysis (Az) was used.CBCT has found a wide application in different fields of dentistry.

View Article: PubMed Central - PubMed

Affiliation: Department of Conservative Dentistry and Periodontology, Poznan University of Medical Sciences, Poznań, Poland, asia_krzyzostaniak@o2.pl.

ABSTRACT

Objectives: The aim of this study was to determine the diagnostic accuracy of cone beam computed tomography (CBCT) in the detection of approximal and occlusal noncavitated carious lesions.

Methods: A total of 135 extracted human posterior teeth were used. They were radiographed using the following: conventional film (Kodak Insight), a digital system (PSP plates Digora Optime, Soredex), and a CBCT system (NewTom 3G, Quantitative Radiology). All the images were assessed by two independent observers twice. Receiver operating characteristic analysis (Az) was used.

Results: NewTom 3G 9″ CBCT was statistically inferior to conventional film and a digital system for the detection of approximal caries. NewTom 3G 9″ had significantly higher Az values than PSP plate (p < 0.05), but there were no statistically significant differences between the Az values for CBCT and film (p > 0.33) for occlusal surface caries.

Conclusion: The diagnostic accuracy of all three tested radiographic systems is low, and it is necessary to use other methods to improve early caries detection.

Clinical relevance: CBCT has found a wide application in different fields of dentistry. The report from a CBCT examination performed for any of these reasons should include all abnormal findings, and the detection of noncavitated caries lesions is especially important because it facilitates the use of noninvasive treatment.

No MeSH data available.


Related in: MedlinePlus