scholarly journals Comparison of the Diagnostic Accuracy of Digital Intraoral Radiography with PSP and CBCT in the Detection of Horizontal and Vertical Dental Root Fractures

2016 ◽  
Vol 1 (4) ◽  
pp. 32-38
Author(s):  
AR Talayi Pour ◽  
L Hafezi ◽  
A Yarahmadi ◽  
A Ghaznavi ◽  
A Iranparvar ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Intraoral Radiography ◽  
Root Fractures ◽  
Digital Intraoral Radiography

scholarly journals Comparison of Cone-Beam Computed Tomography and Intraoral Radiography in Detection of Recurrent Caries under Composite Restorations

2017 ◽  
Vol 28 (1) ◽  
pp. 85-91 ◽  
Author(s):  
Shahin Kasraei ◽  
Abbas Shokri ◽  
Jalal Poorolajal ◽  
Samira Khajeh ◽  
Hamid Rahmani
Keyword(s):  
Computed Tomography ◽  
Diagnostic Accuracy ◽  
Cone Beam Computed Tomography ◽  
Composite Resin ◽  
Dental Restoration ◽  
Cone Beam ◽  
Intraoral Radiography ◽  
Secondary Caries ◽  
Composite Restorations ◽  
Digital Intraoral Radiography

Abstract Secondary caries is the most common cause of dental restoration failures. This study aimed to compare the diagnostic accuracy of conventional and digital intraoral radiography and cone beam computed tomography (CBCT) for detection of recurrent caries around composite restorations. mesio-occluso-distal (MOD) cavities were prepared using bur on 45 extracted sound human molar teeth. The teeth were divided into 3 groups. In the control group, cavities were restored with composite resin after etching and bonding (n=15). In Group 2, 500-μm thick wax was placed over the buccal, lingual and gingival walls and the cavities were restored with composite resin. Group 3 specimens were subjected to pH cycling and artificial caries were created on the buccal, lingual and gingival walls. The cavities were restored with composite. Conventional and digital photo-stimulable phosphor (PSP; Optime) radiographs and two CBCTs images (NewTom 3G and Cranex 3D) were obtained from them. Presence or absence of caries in the cavity walls was assessed on these images. Data were analyzed using Kappa statistic. The diagnostic accuracy of CBCT was significantly higher than that of digital and conventional intraoral radiography (p<0.05). The accuracy was 0.83, 0.78, 0.55 and 0.49 for CBCT Cranex 3D, CBCT NewTom 3G, conventional and digital intraoral radiography, respectively. CBCT has a higher diagnostic accuracy than digital and conventional intraoral radiography for detection of secondary caries around composite restorations.

Determination of a cone-beam CT low-dose protocol for root fracture diagnosis in non-endodontically treated anterior maxillary teeth

2021 ◽  
pp. 20210138
Author(s):  
Fedil Andraws Yalda ◽  
Chrysoula Theodorakou ◽  
Rosalyn J Clarkson ◽  
Jonathan Davies ◽  
Lee Feinberg ◽  
...  
Keyword(s):  
Image Quality ◽  
Diagnostic Accuracy ◽  
Dose Reduction ◽  
Low Dose ◽  
Ex Vivo ◽  
Characteristic Curve ◽  
Ex Vivo Model ◽  
Contrast Resolution ◽  
Anterior Teeth ◽  
Root Fractures

Objectives: The aim of this study was to determine a “low-dose protocol” which provides acceptable diagnostic accuracy for detection of root fractures in unrestored anterior maxillary teeth, using an ex vivo model. Methods: 48 maxillary anterior teeth, half with horizontal or oblique root fractures, were imaged using CBCT in an anthropomorphic model. Nine X-ray exposure combinations were used, including the manufacturer’s standard (“reference”) exposure and high-resolution settings (“HiRes”), by varying kV, exposure time, and rotation angle. Measurements of Dose Area Product (DAP) were recorded. Five dental radiologists assessed the scans for root fractures and judged image quality. Parameters of diagnostic accuracy were calculated, including area under the Receiver Operating Characteristic curve (Az). Objective measures of image quality were made at the same exposure combinations using an image quality phantom. Results: Although there was a significant linear relationship between DAP and mean Az, only the lowest DAP exposure combination had a mean Az significantly different to the reference exposure. There was no significant effect on other diagnostic accuracy parameters when using HiRes compared with the reference exposure. There was a significant positive relationship between DAP and contrast resolution. HiRes did not significantly improve contrast resolution and made a small improvement to spatial resolution. Conclusions: Scope existed for radiation dose reduction compared with the manufacturer’s guidance. There was no improvement in diagnostic accuracy using HiRes settings. A cautious recommendation for this CBCT machine is that it is possible to achieve a dose reduction of about 20% compared with the reference exposure parameters.

Characteristics of root fractures: Image on intraoral radiography, panoramic radiography, and cone‐beam computed tomography

2019 ◽  
Vol 17 (1) ◽  
pp. 34-38
Author(s):  
Fumi Mizuhashi ◽  
Ichiro Ogura ◽  
Yoshihiro Sugawara ◽  
Makoto Oohashi ◽  
Hirokazu Sekiguchi ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Panoramic Radiography ◽  
Cone Beam ◽  
Intraoral Radiography ◽  
Root Fractures

Observer agreement in the detection of proximal caries with direct digital intraoral radiography

1998 ◽  
Vol 85 (1) ◽  
pp. 107-112 ◽  
Author(s):  
Munetaka Naitoh ◽  
Hidemichi Yuasa ◽  
Masahiko Toyama ◽  
Masaru Shiojima ◽  
Moriatsu Nakamura ◽  
...  
Keyword(s):  
Observer Agreement ◽  
Intraoral Radiography ◽  
Proximal Caries ◽  
Digital Intraoral Radiography

Comparison of Micro-Computed Tomography and Digital Intraoral Radiography to Determine the Accuracy of Digital Radiographic Measurements of Mandibular Molar Teeth in Dogs

2017 ◽  
Vol 34 (4) ◽  
pp. 248-258
Author(s):  
Louise Marron ◽  
Jennifer Rawlinson ◽  
Kirk McGilvray ◽  
Ben Prytherch
Keyword(s):  
Computed Tomography ◽  
Root Canal ◽  
Intraoral Radiography ◽  
Structural Representation ◽  
Micro Computed Tomography ◽  
Radiographic Measurements ◽  
Canal Width ◽  
Mandibular Molar ◽  
Molar Teeth ◽  
Digital Intraoral Radiography

Introduction: The purpose of this study was to compare root and root canal width measurements between digital intraoral radiography (IOR) and micro-computed tomography (μCT). The accuracy of IOR measurements of canine mandibular molars was scrutinized to assess feasibility of developing a model to estimate animal age based on dentinal thickness. Materials and Methods: Thirty-nine canine mandibular first molars were imaged using μCT and IOR. For each tooth, the root and root canal width of the mesial and distal roots were measured by a single observer at 3 marked sites on μCT and IOR. Two different software programs were used to measure the radiographs. The radiograph measurements were compared to each other and to the μCT measurements. The μCT images were considered the anatomic reference standard for structural representation. Results: The data collected demonstrated IOR bias and variability throughout all measurement sites, with some sites being more affected than others. Neither IOR system produced unbiased measurements that closely reflected the μCT measurements consistently. The overall lack of agreement between measurements demonstrated the difficulties in developing a standardized protocol for measuring root and root canal width for the first molar teeth in dogs. Conclusion: Developing a protocol to accurately measure and compare μCT and IOR measurements is challenging. Designing a measurement system that would allow for universal application to age dogs would require continued research utilizing a standardized approach to overcome the limitations identified in this article.

scholarly journals A comparative study of the conventional and digital intraoral radiography methods for root canal length measurement

2014 ◽  
Vol 17 (4) ◽  
pp. 34 ◽  
Author(s):  
Fatemeh Salemi ◽  
Samira Saati ◽  
Sepideh Falah-Kooshki
Keyword(s):  
Root Canal ◽  
Gold Standard ◽  
Conventional Radiography ◽  
Length Measurement ◽  
Intraoral Radiography ◽  
Digital Technique ◽  
Digital Radiographs ◽  
Significant Difference ◽  
Phosphor Plates ◽  
Digital Intraoral Radiography

<p><strong>Objective</strong>: Measurement of root canal length is one of the most important stages of endodentic treatment, and any error at this stage can lead to the failure. This study aimed to compare conventional and digital intraoral radiography in measurement of root canal length.  <strong>   Material and Methods: </strong>In this study, 35 single-canal maxillary teeth were collected. Access cavities were prepared. An endodontic number 10#K- file was introduced into the canal, until the tip was visible at the apical foramen and the actual canal length (gold standard) was determined. After acquisition conventional radiographs using E-Ektaspeed and F-Insight film (Eastman-Kodak Co. Rochester, NY, USA) and digital radiographs using Photostimulable Phosphor Plates(PSP) (Soredex, Helsinki, Finland) and Charge Coupled Devices (CCD)(RVG, Trophy,NY,USA). they were examined separately with a two-week interval by two oral and maxillofacial radiologists. The data were analyzed with ANOVA and Tukey’s tests using SPSS-19 software (SPSS Inc., Chicago, IL, USA).<strong>   Result: </strong>No statistically significant difference was observed between different radiographies, and different observers (P &gt; 0.05). Nevertheless, in comparison with the gold standard, in all cases, the F-speed conventional radiography and the digital CCD radiography showed the highest and the lowest accuracy, respectively. Also, the PSP and the E-speed conventional radiography were in the second and third order of accuracy, respectively.<strong>  Conclusion: </strong>The use of digital radiography does not improve the accuracy of the root canal length measurement,but the digital technique has advantages,such as the reduced patient exposure ,eliminating the time consuming processing stages, and producing fast images.</p>

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