<scp>CBCT</scp>‐based volume of simulated root resorption – influence of <scp>FOV</scp> and voxel size

Silveira, Priscila Fernanda da; Fontana, Mathias Pante; Oliveira, Helena Willhelm de; Vizzotto, Mariana Boessio; Montagner, Francisco; Silveira, Heraldo Luís Dias da; Silveira, Heloísa Emília Dias da

doi:10.1111/iej.12390

Cited by 30 publications

(27 citation statements)

References 23 publications

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“…Finally, the diagnostic accuracy of CBCT for external root resorption at different voxel sizes was also examined by Neves et al; in which an increase in cavity size yielded higher values for diagnostic accuracy, PPV and NPV [22,24,25]. This study, however, showed that overall the voxel size used in the current study for CBCT images had no statistically significant effect on the diagnostic accuracy of large and small images at the different levels of the root.…”

Section: Discussionmentioning

confidence: 61%

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The Effect of Two Different Voxel Sizes on the Diagnosis of External Root Resorption by Planmeca Cone Beam Computed Tomography System: an in vitro study

Mohammadpour¹,

Tofangchiha²,

Asadirad³

et al. 2016

SJDS

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Early diagnosis of root resorption lesions may result in the arrest of these lesions with therapeutic protocols; this early diagnosis can only be achieved with CBCT. However, CBCT involves higher radiation doses compared to conventional radiography. A greater radiation dose is required when using different voxel sizes of CBCT system. Therefore, it is important to determine the voxel size, which creates an image with high diagnostic potential with minimum possible radiation dose. This study evaluated the effect of changes in voxel size on the diagnostic results of external root resorption using the Planmeca CBCT system. Single-rooted anterior teeth were collected and cavities measuring 0.25 and 0.5 mm in depth were created on their cervical, middle and apical surfaces. CBCT scans of the lesions were obtained using two voxel sizes: 0.2 and 0.4 mm. Two observers determined the presence of simulated external resorptions on CBCT images. Diagnostic indices of specificity, accuracy, sensitivity, and positive and negative predictive values were calculated for all the images . Diagnostic capacities of CBCT images obtained at the above voxel sizes were almost similar on the middle, apical and cervical surfaces and with large and small lesions. Good, agreements were observed between the two observers examining the images prepared using two voxel sizes. Similar diagnostic abilities were noted for two voxel sizes of CBCT system to diagnose external root resorption lesions; therefore, voxel size 0.4 can be used to detect root resorption lesions with adequate accuracy and the least patient exposure dose.

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Section: Discussionmentioning

confidence: 61%

“…Goldberg et al; examined the ability of CBCT in detecting simulated external root resorption in the incisor teeth of upper jaw and concluded that the detection of small cavities, compared to cavities of intermediate and large sizes, is laborious and difficult [7,24].…”

Section: Discussionmentioning

confidence: 99%

The Effect of Two Different Voxel Sizes on the Diagnosis of External Root Resorption by Planmeca Cone Beam Computed Tomography System: an in vitro study

Mohammadpour¹,

Tofangchiha²,

Asadirad³

et al. 2016

SJDS

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“…Upon dissociation CH produces high pH (12.5-12.8) preventing the dissolution of mineral components of dentin, in addition to activating alkaline phosphatase, which plays an important role in the formation of hard tissue [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] .…”

Section: Discussionmentioning

confidence: 99%

“…Also, diagnosis by CBCT may improve the accuracy and efficiency in the prognosis of the tooth 14,15 . The purpose of this case report is to describe the diagnosis and clinical management of an internal root resorption.…”

Section: Introductionmentioning

confidence: 99%

Management of an internal root resorption on a permanent tooth. A case report.

Maldonado¹,

Muñoz²

2015

Joralres

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Cite as: Maldonado A & Muñoz E. Management of an internal root resorption on a permanent tooth. A case report. J Oral Res 2015; 4(4): 275-281. Abstract: Internal root resorption (IRR) is a rare pulp disease. Its etiology involves late pulpal inflammations and trauma, among others. IRR may also show some symptoms, and is usually detected by X-rays. However, its diagnosis is significantly improved by the use of cone beam computed tomography (CBCT). The objective of this case report was to account for the diagnosis and management of an internal root resorption without perforation. The patient, a 26-year-old male, went to the School of Dentistry at Universidad Andres Bello, Concepción, without having symptoms in the tooth 1.1. Anamnesis revealed the presence of previous symptoms. CBCT examination showed absence of bowl-shaped calcified dentin tissue on the inner walls of the root canal with apical lesion but without perforation of surrounding tissues. Endodontic treatment was performed using the following methods: irrigation of the root canal with 2% chlorhexidine (CHX) using a Max-i-probe cannula and simultaneous cavitation of the irrigant Then calcium hydroxide (CH) was applied as intracanal medication for a week and Schilder's technique for vertical compaction was used. The patient was checked after one week and then after six months. He did not have any symptoms. Early diagnosis using modern imaging equipment, appropriate use of ultrasound for chemomechanical debridement and thermoplastic filling techniques contribute to a more favorable prognosis of patients with internal root resorption.

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“…when evaluating airway estimation tools, as well as the phantom utilized. [7][8][9][10][11] For cephalometric and airway analysis, a large field of view (FOV) is frequently chosen to include all regions of interest. Usually, bigger voxel sizes are selected for large FOV's because it requires less scan and reconstruction time, and therefore less radiation for the patient; however, larger voxel sizes reduce spatial resolution.…”

mentioning

confidence: 99%

Important queries for the airway analysis in cone-beam computed tomography scans: Threshold tool and voxel size protocol

Martins

Liedke

Dias³

et al. 2018

J Oral Maxillofac Radiol

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CBCT‐based volume of simulated root resorption – influence of FOV and voxel size

Cited by 30 publications

References 23 publications

The Effect of Two Different Voxel Sizes on the Diagnosis of External Root Resorption by Planmeca Cone Beam Computed Tomography System: an in vitro study

The Effect of Two Different Voxel Sizes on the Diagnosis of External Root Resorption by Planmeca Cone Beam Computed Tomography System: an in vitro study

Management of an internal root resorption on a permanent tooth. A case report.

Important queries for the airway analysis in cone-beam computed tomography scans: Threshold tool and voxel size protocol

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