Influence of Voxel Size in the Diagnostic Ability of Cone Beam Tomography to Evaluate Simulated External Root Resorption

Liedke, Gabriela Salatino; Silveira, Heloísa Emília Dias da; Silveira, Heraldo Luís Dias da; Dutra, Vinícius; Figueiredo, José Antônio Poli de

doi:10.1016/j.joen.2008.11.005

Cited by 171 publications

(159 citation statements)

References 17 publications

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“…19 When the CBCT images were compared with micro CT and laser scanning, the authors found that volumetric measurements made with CBCT were all similar for voxel sizes up to 200 mm. [17][18] Liedke et al 20 recommended a minimal voxel resolution of 0.3 mm for the detection of external root resorption. In this study, segmentation and volumetric measurements were done on 0.2 mm CBCT images.…”

Section: Resultsmentioning

confidence: 99%

Evaluation and comparison of root resorption between tooth-borne and tooth-tissue borne rapid maxillary expansion appliances: A CBCT study

Di̇ndaroğlu

Doğan

2015

The Angle Orthodontist

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Objective: To compare volumetric root resorption after rapid maxillary expansion (RME) between tooth-borne and tissue-borne appliances using CBCT. Repair in resorption cavities after 6 months of fixed retention was also compared. Materials and Methods: A sample of 33 subjects were randomly divided into two groups: Hyrax (n 5 16) and Haas (n 5 17). CBCT scans were taken 6 months before expansion, immediately after expansion, and 6 months after fixed retention. Mimics Innovation V 16.0 software was used for segmentation and volumetric measurement of 198 teeth. Bland-Altman plots, independent samples t test, repeated measures analysis of variance, and the Friedman test were used for statistical analysis. Results: Differences in root resorption after RME and repair after retention were not significant between the hyrax and Haas appliances or between male and female. Significant differences were found between preexpansion and postexpansion root volumes in the first premolars and molarseven in unattached second premolars. When the percentage of root volume loss is considered, no significant difference was found between the first premolar, second premolar, and first molar. Volumetric changes after 6 months of retention were not statistically significant.

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Section: Resultsmentioning

confidence: 99%

Evaluation and comparison of root resorption between tooth-borne and tooth-tissue borne rapid maxillary expansion appliances: A CBCT study

Di̇ndaroğlu

Doğan

2015

The Angle Orthodontist

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“…Of those, four assessed the detection of root fractures [18][19][20][21] (and used the clinical truth (an induced root fracture) as the gold standard), three assessed internal or external root resorption [22][23][24] also using the clinical truth as the gold standard, three assessed caries lesion detection [25][26][27] (and used sectioning and histology of the teeth as the gold standard), one assessed the detection of erosions in the temporomandibular joint [28] (using the clinical truth as the gold standard), and one assessed the presence of root canals in molars [29] using sectioning and histology of the teeth as the gold standard. The remaining eight studies were based on numerical outcomes measured in the images.…”

Section: Review Search Resultsmentioning

confidence: 99%

Impact of Voxel Size Variation on CBCT-Based Diagnostic Outcome in Dentistry: a Systematic Review

2012

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The objective of this study was to make a systematic review on the impact of voxel size in cone beam computed tomography (CBCT)-based image acquisition, retrieving evidence regarding the diagnostic outcome of those images. The MEDLINE bibliographic database was searched from 1950 to June 2012 for reports comparing diverse CBCT voxel sizes. The search strategy was limited to English-language publications using the following combined terms in the search strategy: (voxel or FOV or field of view or resolution) and (CBCT or cone beam CT). The results from the review identified 20 publications that qualitatively or quantitatively assessed the influence of voxel size on CBCT-based diagnostic outcome, and in which the methodology/results comprised at least one of the expected parameters (image acquisition, reconstruction protocols, type of diagnostic task, and presence of a gold standard). The diagnostic task assessed in the studies was diverse, including the detection of root fractures, the detection of caries lesions, and accuracy of 3D surface reconstruction and of bony measurements, among others. From the studies assessed, it is clear that no general protocol can be yet defined for CBCT examination of specific diagnostic tasks in dentistry. Rationale in this direction is an important step to define the utility of CBCT imaging.

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“…Liedke et al (2009) telah mengukur 59 batang gigi daripada imej yang diambil dengan tomografi iCAT pada resolusi isi padu piksel 0.4, 0.3 dan 0.2 mm. Beliau mendapati CBCT merupakan pendekatan yang boleh dipercayai untuk menganalisis penyerapan akar gigi sekiranya resolusi isi padu piksel kurang daripada 0.3 mm.…”

Section: Perbincanganunclassified

“…Beliau mendapati CBCT merupakan pendekatan yang boleh dipercayai untuk menganalisis penyerapan akar gigi sekiranya resolusi isi padu piksel kurang daripada 0.3 mm. Saiz isi padu piksel yang rendah, manakala pendedahan dos radiasi yang tinggi pada pesakit telah dipilih bagi memperoleh imej untuk menghasilkan resolusi tinggi (Liedke et al 2009). Walau bagaimanapun, dalam kajian ini, pilihan saiz isi padu piksel sedia ada adalah 0.076, 0.1 dan 0.2 mm dengan Kodak 9000 3D; saiz isi padu piksel pada 0.2 mm telah dipilih kerana ia dianggap optimum untuk meminimumkan dos radiasi tetapi masih mencukupi daripada segi resolusi untuk mengukur penyerapan akar gigi.…”

Section: Perbincanganunclassified

Penyerapan Akar Gigi Apeks Luaran Hasil Rawatan Ortodontik Pada Enam dan 12 Bulan

Arifin¹,

Din

Yamamoto

et al. 2017

JSM

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Influence of Voxel Size in the Diagnostic Ability of Cone Beam Tomography to Evaluate Simulated External Root Resorption

Cited by 171 publications

References 17 publications

Evaluation and comparison of root resorption between tooth-borne and tooth-tissue borne rapid maxillary expansion appliances: A CBCT study

Evaluation and comparison of root resorption between tooth-borne and tooth-tissue borne rapid maxillary expansion appliances: A CBCT study

Impact of Voxel Size Variation on CBCT-Based Diagnostic Outcome in Dentistry: a Systematic Review

Penyerapan Akar Gigi Apeks Luaran Hasil Rawatan Ortodontik Pada Enam dan 12 Bulan

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