Effect of titanium and stainless steel posts in detection of vertical root fractures using NewTom VG cone beam computed tomography system

Mohammadpour, Mahdis; Bakhshalian, Neema; Shahab, Shahriar; Sadeghi, Shaya; Ataee, Mona; Sarikhani, Soodeh

doi:10.5624/isd.2014.44.2.89

Cited by 10 publications

(4 citation statements)

References 18 publications

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“…In the clinical studies, except for the study by Edlund et al (2011), the observers were to detect the fracture line, rather than to diagnose a fracture according to the characteristic patterns of bone resorption. The detection of a fracture line would be a pathognomonic finding for fracture diagnoses; however, CBCT seems to be not accurate enough for this purpose, especially in the presence of metal posts or post-cores (Melo et al 2013, Mohammadpour et al 2014, Menezes et al 2016. Low sensitivity and AUC (ROC) of CBCT for fracture line detection (Chavda et al 2014, Makeeva et al 2016) are related to the problem of spatial resolution.…”

Section: Discussionmentioning

confidence: 99%

The accuracy of CBCT for the detection and diagnosis of vertical root fractures in vivo

et al. 2019

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Aim To compare the in vivo accuracy of CBCT for the detection of fracture lines versus the diagnosis of vertical root fractures (VRFs) according to characteristic patterns of associated bone resorption. Methodology Eighty‐eight patients with symptoms typical of VRFs in root filled teeth, who underwent a CBCT examination and later had the teeth extracted, were divided into two groups: the fracture group (n = 65) and the control group (n = 23). Five blinded observers assessed the CBCT images in two sessions. During the first session, they were asked to state the diagnosis according to the CBCT and clinical data. During the second session after 2 weeks, they assessed only axial slices and were asked to detect a fracture line. The mean CBCT specificity, sensitivity, accuracy values and area under the receiver operating characteristic (AUROC) curve were calculated and compared using the Wilcoxon signed‐rank test. Results The average sensitivity of CBCT for the diagnosis of VRFs was 0.84 ± 0.2. The accuracy and AUC values were 0.81 ± 0.08 and 0.84 ± 0.17, respectively. The sensitivity, accuracy and AUC values for the detection of VRFs were significantly lower: 0.17 ± 0.24 (P = 0.042), 0.54 ± 0.07 (P = 0.043), and 0.52 ± 0.09 (P = 0.043), respectively. The specificity of CBCT for the detection and diagnosis of VRFs did not differ significantly (P = 0.50). Conclusion Cone‐beam computed tomography was helpful in VRF diagnosis even when it was not possible to visualize the fracture line.

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Section: Discussionmentioning

confidence: 99%

The accuracy of CBCT for the detection and diagnosis of vertical root fractures in vivo

et al. 2019

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“…High-density materials generate beam hardening and scatter effect artifacts [2,3]. Intracanal materials induce such artifacts, reducing the accuracy of CBCT in detecting RF and making the diagnosis difficult [1,4]. Beam hardening artifact occurs when lower energy rays from the beam spectrum are filtered and removed by highdensity objects.…”

Section: Introductionmentioning

confidence: 99%

Assessing the Efficacy of Planmeca ProMax® 3D Cone-Beam CT Machine in the Detection of Root Fractures With Varied Metal Artifact Reduction Settings and Three Kilovoltage Peak Levels

Almeshari¹,

Abdelkarim²,

Geha³

et al. 2023

Cureus

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Background: This study aims to examine the accuracy of cone-beam computed tomography (CBCT) machines in detecting root fracture when using different metal artifact reduction (MAR) settings at different kilovoltage peak (kVp) levels.Methodology: Sixty-six tooth roots were treated endodontically using a standardized technique. Of these, 33 roots were randomly selected to be fractured; the other 33 roots were intact and used as controls. The roots were placed randomly in prepared beef ribs to mimic the alveolar bone. Imaging was performed by Planmeca ProMax® 3D (Planmeca, Helsinki, Finland) using different MAR settings (no, low, mid, and high) at three different levels of kVp: 70, 80, and 90. Sensitivity, specificity, and area under the receiver operating characteristic curve (AUC) were calculated.Results: There was a significant difference in accuracy when using different MAR settings within the group of 70 kVp. Likewise, within the group of 90 kVp. There was no significant difference between different MAR settings at 80 kVp. Using low MAR/90 kVp had significantly higher accuracy relative to other MAR settings at 90 kVp; it also had the highest values of sensitivity, specificity, and AUC in the study. Using mid and high MAR at 70 kVp or 90 kVp decreased accuracy significantly. Mid MAR/90 kVp was the least effective setting in this study.Conclusions: Using low MAR at 90 kVp significantly increased the accuracy within the group of 90 kVp. In contrast, mid MAR and high MAR in 70 and 90 kVp, respectively, decreased accuracy significantly.

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“…These artifacts are represented by radiopaque, radiolucent, and bright tracks that can overlap the teeth12 or bone and mimic bone loss 13. Previous studies have compared images in which metallic posts are present or absent,1112 different metallic post compositions,14 metallic and fiber posts,15 and PR or CBCT imaging for tooth fracture diagnosis 16. In all studies, the artifacts created by the presence of the posts reduced the diagnostic accuracy of the observers.…”

Section: Introductionmentioning

confidence: 99%

Detection of furcation involvement using periapical radiography and 2 cone-beam computed tomography imaging protocols with and without a metallic post: An animal study

et al. 2017

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PurposeThe purpose of this study was to assess the accuracy, sensitivity, and specificity of the diagnosis of incipient furcation involvement with periapical radiography (PR) and 2 cone-beam computed tomography (CBCT) imaging protocols, and to test metal artifact interference.Materials and MethodsMandibular second molars in 10 macerated pig mandibles were divided into those that showed no furcation involvement and those with lesions in the furcation area. Exams using PR and 2 different CBCT imaging protocols were performed with and without a metallic post. Each image was analyzed twice by 2 observers who rated the absence or presence of furcation involvement according to a 5-point scale. Receiver operating characteristic (ROC) curves were used to evaluate the accuracy, sensitivity, and specificity of the observations.ResultsThe accuracy of the CBCT imaging protocols ranged from 67.5% to 82.5% in the images obtained with a metallic post and from 72.5% to 80% in those without a metallic post. The accuracy of PR ranged from 37.5% to 55% in the images with a metallic post and from 42.5% to 62.5% in those without a metallic post. The area under the ROC curve values for the CBCT imaging protocols ranged from 0.813 to 0.802, and for PR ranged from 0.503 to 0.448.ConclusionBoth CBCT imaging protocols showed higher accuracy, sensitivity, and specificity than PR in the detection of incipient furcation involvement. Based on these results, CBCT may be considered a reliable tool for detecting incipient furcation involvement following a clinical periodontal exam, even in the presence of a metallic post.

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Effect of titanium and stainless steel posts in detection of vertical root fractures using NewTom VG cone beam computed tomography system

Cited by 10 publications

References 18 publications

The accuracy of CBCT for the detection and diagnosis of vertical root fractures in vivo

The accuracy of CBCT for the detection and diagnosis of vertical root fractures in vivo

Assessing the Efficacy of Planmeca ProMax® 3D Cone-Beam CT Machine in the Detection of Root Fractures With Varied Metal Artifact Reduction Settings and Three Kilovoltage Peak Levels

Detection of furcation involvement using periapical radiography and 2 cone-beam computed tomography imaging protocols with and without a metallic post: An animal study

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