Three‐dimensional, non‐destructive visualization of vertical root fractures using flat panel volume detector computer tomography: an <i>ex vivo</i><i>in vitro</i> case report

Hannig, Christian; Dullin, Christian; Hülsmann, Michael; Heidrich, Gabert

doi:10.1111/j.1365-2591.2005.01033.x

Cited by 67 publications

(56 citation statements)

References 21 publications

(35 reference statements)

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“…2 However, the higher cost and radiation dose associated with conventional CT outweigh these advantages in the light of endodontic practice. 5,6 Cone-beam CT (CBCT) involves lesser radiation dose and yields higher spatial resolution than conventional CT. Prototype local CT systems, flat-panel detector CBCT systems that are used to scan ex vivo samples, are found to be valuable for detecting root fractures, 7,8 but they cannot be used to scan patients. Clinical dental CBCT systems appear to be superior to conventional dental radiography in detecting artificially created root fractures.…”

Section: Introductionmentioning

confidence: 99%

Detection of dental root fractures by using cone-beam computed tomography

Wang

Yan²,

Lui³

et al. 2011

Dentomaxillofacial Radiology

117

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Objectives: The purpose of this study was to compare the diagnostic accuracy of cone beam CT (CBCT) with that of conventional dental radiography in the detection of root fractures and to evaluate the influence of root canal fillings on root fracture detection. Methods: We investigated 128 patients with clinically suspected root fractures in 135 teeth. These patients underwent conventional dental radiography, CBCT and eventually surgical exploration. Among the 135 teeth, 86 were non-endodontically treated teeth and 49 were endodontically treated teeth. Two oral radiologists independently analysed the dental radiographs and CBCT images of each patient and reached a consensus. The CBCT findings of root fractures were set as the detection of a separation of the adjacent root segments on at least two contiguous sections and on at least two of the three-dimensional (3D) planes. Results: Root fracture was intraoperatively detected in 95 of the 135 teeth. The sensitivity and specificity of root fractures diagnosed on the basis of the consensus between the 2 evaluators were 26.3% and 100%, respectively, for dental radiography and 89.5% and 97.5%, respectively, for CBCT. CBCT was significantly more accurate than dental radiography in detecting root fractures (P , 0.001). The sensitivity of CBCT was reduced in the presence of root canal fillings but its specificity remained unaffected. Both the sensitivity and specificity of dental radiography were not influenced by the presence of root canal fillings.Conclusions: CBCT appears to be more accurate than conventional dental radiography in the detection of root fractures.

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Section: Introductionmentioning

confidence: 99%

Detection of dental root fractures by using cone-beam computed tomography

Wang

Yan²,

Lui³

et al. 2011

Dentomaxillofacial Radiology

117

View full text Add to dashboard Cite

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“…Numerous studies 17,[38][39][40] substantiate the good diagnostic capabilities of fpVCT for small bone structures. Obenauer et al 41 demonstrated that with the prototype of a fpVCT the imaging of different phantoms can be distinctively improved in comparison to the results afforded by MSCT.…”

Section: Resultsmentioning

confidence: 99%

“…[16][17][18] It has already been reported 16,19 that fpVCT is superior to the MSCT with regard to visualization of the sutural structures.…”

Section: Introductionmentioning

confidence: 99%

Measurement of the midpalatal suture width

Fricke-Zech

Gruber

Dullin

et al. 2011

The Angle Orthodontist

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Objective: To conduct a pilot study to investigate the potentiality to determine the midpalatal sutural width radiographically with a flat-panel volume computed tomography (fpVCT) in a porcine model. Materials and Methods: Bone samples from the midpalatal suture of five young (16 weeks) and five old (200 weeks) sus scrofa domestica were gathered. The midpalatal suture width was measured via fpVCT and compared to respective histological preparations. Results with P , .05 were considered significant.

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“…[9][10][11] It also allows classification in terms of direction (horizontal, vertical, or oblique) and fracture location (apical, middle, or cervical third of the root). 12 Nevertheless, it can be seen that in the majority of cases of fracture, the tooth has received endodontic treatment and the insertion of intraradicular posts. These radiopaque and/or metallic filling materials in the CBCT viewing field may generate artifacts in the form of striations or streaks, known as the beam-hardening effect, which could compromise root fracture detection in terms of the sensitivity and specificity of the diagnosis.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Root Fracture in endodontically treated Teeth using Cone Beam Computed Tomography

Tiepo

Magrin

Kovalik

et al. 2017

The Journal of Contemporary Dental Practice

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Aim: Our objective was to perform an in vitro evaluation of root fracture in endodontically treated teeth using two cone beam computed tomography (CBCT) machines. Materials and methods:The sample comprised 86 singlerooted human premolars that had been fractured by a universal testing machine. The tomographic images were acquired using an Orthopantomograph OP300 ® and an Orthophos XG 3D ® and evaluated by three examiners, by means of specific software. The teeth were classified into presence or absence of root fracture, then the root third where the fracture occurred, was determined. With regard to the detection of the fracture, the Kappa statistic was used for intra and interexaminer reproducibility at two distinct points in time. Chi-squared test was employed to analyze the sensitivity and specificity of the two tomographs (p < 0.05). Results:The results showed a good or excellent Kappa index between examiners. As for the absolute frequency, the sensitivity (0.6) of the Orthophos XG 3D ® equipment was superior, while specificity (0.91) was higher with the Orthopantomograph OP300 ® . On the receiver operating characteristics curve, moderate performance was found with an accuracy of 0.73 (OrthopantomographOP300 ® ) and 0.74 (Orthophos XG 3D ® ) respectively. As far as the location of the root fracture is concerned, moderate agreement was verified using the Kappa statistic (k = 0.56). Evaluation of Root Fracture in endodontically treated Clinical significance:An early and precise detection of root fractures is of the utmost clinical importance, but the radiopaque and/or metallic filling materials in the CBCT viewing field may generate artifacts, known as the beam-hardening effect, which could compromise root fracture detection.

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Three‐dimensional, non‐destructive visualization of vertical root fractures using flat panel volume detector computer tomography: an ex vivoin vitro case report

Cited by 67 publications

References 21 publications

Detection of dental root fractures by using cone-beam computed tomography

Detection of dental root fractures by using cone-beam computed tomography

Measurement of the midpalatal suture width

Evaluation of Root Fracture in endodontically treated Teeth using Cone Beam Computed Tomography

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