<i>Ex vivo</i>evaluation of artifacts mimicking fracture lines on cone-beam computed tomography produced by different root canal sealers

Brito-Júnior, Manoel; Santos, Luís; Faria-e-Silva, André Luís; Pereira, Rodrigo Dantas; Sousa‐Neto, Manoel Damião

doi:10.1111/iej.12121

Cited by 56 publications

(46 citation statements)

References 24 publications

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“…Root canal filling as a radiopaque material may cause artefact in CBCT however the artefacts can be negligible with proper machine settings and parameters of CBCT. Smaller voxel sizes and small FOV scans are preferable to minimise the presence of artefacts 21) as 0.25 voxel size and small FOV scan were used in the present study. Moreover metallic restorations which induce considerable artefacts 22) were not included in this CBCT study.…”

Section: Discussionmentioning

confidence: 99%

Efficacy of Twisted File Adaptive, Reciproc and ProTaper Universal Retreatment instruments for root-canal-filling removal: A cone-beam computed tomography study

et al. 2016

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The aim of this study was to evaluate the efficacy of Twisted File (TF) Adaptive, Reciproc, and ProTaper Universal Retreatment (UR) System instruments for removing root-canal-filling. Sixty single rooted teeth were decoronated, instrumented and obturated. Preoperative CBCT scans were taken and the teeth were retreated with TF Adaptive, Reciproc, ProTaper UR, or hand files (n=15). Then, the teeth were rescanned, and the percentage volume of the residual root-canal-filling material was established. The total time for retreatment was recorded, and the data was statistically analyzed. The statistical ranking of the residual filling material volume was as follows: hand file=TF Adaptive>ProTaper UR=Reciproc. The ProTaper UR and Reciproc systems required shorter periods of time for retreatment. Root canal filling was more efficiently removed by using Reciproc and ProTaper UR instruments than TF Adaptive instruments and hand files. The TF Adaptive system was advantageous over hand files with regard to operating time.

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Section: Discussionmentioning

confidence: 99%

Efficacy of Twisted File Adaptive, Reciproc and ProTaper Universal Retreatment instruments for root-canal-filling removal: A cone-beam computed tomography study

et al. 2016

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“…26 The presence of these artefacts may lead to false results because they mimic fracture lines and may mask fractures that are present. 13,15,23,[29][30][31][32][33][34] Previous studies that assessed VRF detection using different imaging modalities in teeth with endodontic fillings and metallic posts demonstrated the influence of the filling material on the results. 13,23 The presence of an endodontic filling did not alter the sensitivity of the imaging examinations but significantly reduced the specificity of digital radiographs 13 and five CBCT systems.…”

Section: Discussionmentioning

confidence: 99%

The influence of metallic posts in the detection of vertical root fractures using different imaging examinations

Jakobson¹,

Westphalen²,

Neto³

et al. 2014

Dentomaxillofacial Radiology

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Objectives: To assess the influence of metallic posts in the detection of simulated vertical root fractures (VRFs) using the following imaging examinations: 2 cone beam CT (CBCT) systems [CBCT1: NewTom ® 3G (QR Srl, Verona, Italy) and CBCT2: i-CAT Next Generation ® (Imaging Sciences International, Hatfield, PA)] and film and digital radiographs. Additionally, the influence of the orientation of the fracture line in the detection of VRFs was evaluated. Methods: 100, human, single-rooted endodontically treated premolars were divided into 5 groups (Group 1: with posts and buccolingual VRFs, Group 2: with posts and mesiodistal VRFs, Group 3: without posts and with buccolingual VRFs, Group 4: without posts and with mesiodistal VRFs, and Group 5: with posts and without VRFs). The premolars were placed in human mandibles and imaged using the four examination modalities. The sensitivity and the specificity of each examination in the experimental groups were calculated. The data were analysed using Student's t-test.Results: The presence of metallic posts reduced the sensitivity of the CBCT1 system (p 5 0.0244). Digital radiographs and the CBCT1 and CBCT2 systems had a higher sensitivity in detecting buccolingual fractures in teeth with posts, whereas film and digital radiographs had a higher sensitivity in detecting buccolingual fractures in teeth without posts (p , 0.05). The CBCT1 examination demonstrated the lowest specificity (p , 0.05). Conclusions:The presence of metallic posts did not influence the sensitivity of most of the examinations, excluding the CBCT1 system. The fracture line orientation may influence VRF detection.

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“…, Brito‐Junior et al . ). Moreover, some CBCT units allow the application of modified algorithms (e.g.…”

Section: Introductionmentioning

confidence: 97%

Performance of an artefact reduction algorithm in the diagnosis of in vitro vertical root fracture in four different root filling conditions on CBCT images

et al. 2015

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Ex vivoevaluation of artifacts mimicking fracture lines on cone-beam computed tomography produced by different root canal sealers

Abstract: The material used for root filling and the voxel resolution can influence the presence of streaking artifacts observed in CBCT images.

Cited by 56 publications

References 24 publications

Efficacy of Twisted File Adaptive, Reciproc and ProTaper Universal Retreatment instruments for root-canal-filling removal: A cone-beam computed tomography study

Efficacy of Twisted File Adaptive, Reciproc and ProTaper Universal Retreatment instruments for root-canal-filling removal: A cone-beam computed tomography study

The influence of metallic posts in the detection of vertical root fractures using different imaging examinations

Performance of an artefact reduction algorithm in the diagnosis of in vitro vertical root fracture in four different root filling conditions on CBCT images

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