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Miranda-Viana M, Fontenele RC, Farias Gomes A, Nogueira-Reis F, Nejaim Y, Oliveira ML, Freitas DQ. Digital file format does not influence the radiographic diagnosis of vertical root fracture. Oral Radiol 2022; 38:452-458. [PMID: 34626307 PMCID: PMC8501329 DOI: 10.1007/s11282-021-00573-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 09/28/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To evaluate the influence of the file format of digital periapical radiographs on the diagnosis of vertical root fracture (VRF). STUDY DESIGN Periapical radiographic images of 34 single-rooted teeth-19 with VRF, and 15 without VRF were acquired using two digital systems-Digora Toto, and Digora Optime, and exported into four different file formats-TIFF, BMP, PNG, and JPEG, totaling 272 radiographs. The radiographs were assessed by five examiners for the detection of VRF, using a 5-point scale (1-definitely absent; 2-probably absent; 3-uncertain; 4-probably present; 5-definitely present). Diagnostic values of area under the ROC curve, specificity, and sensitivity for the diagnosis of VRF were calculated. The results were compared by two-way Analysis of Variance with post hoc Tukey's test. The intra- and inter-examiner agreements were measured by the Kappa test. The significance level was set at 5% for all analyses. RESULTS The values of intra-examiner agreement varied from moderate (0.56) to almost perfect (0.81), while the values of inter-examiner agreement varied from fair (0.29) to moderate (0.60). The image file format did not influence the diagnostic values for VRF for any of the radiographic systems tested (p > 0.05). Digora Toto had significantly greater values of area under the ROC curve than Digora Optime for all file formats (p = 0.001). CONCLUSION The image file format of periapical radiographs does not influence the diagnosis of VRF, regardless of the digital radiography system.
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Affiliation(s)
- Murilo Miranda-Viana
- Oral Radiology Area, Piracicaba Dental School, University of Campinas, Avenida Limeira, 901, Piracicaba, São Paulo, 13414-903, Brazil
| | - Rocharles Cavalcante Fontenele
- Oral Radiology Area, Piracicaba Dental School, University of Campinas, Avenida Limeira, 901, Piracicaba, São Paulo, 13414-903, Brazil.
| | - Amanda Farias Gomes
- Oral Radiology Area, Piracicaba Dental School, University of Campinas, Avenida Limeira, 901, Piracicaba, São Paulo, 13414-903, Brazil
| | - Fernanda Nogueira-Reis
- Oral Radiology Area, Piracicaba Dental School, University of Campinas, Avenida Limeira, 901, Piracicaba, São Paulo, 13414-903, Brazil
| | - Yuri Nejaim
- Oral Radiology Area, Dental School, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Matheus L Oliveira
- Oral Radiology Area, Piracicaba Dental School, University of Campinas, Avenida Limeira, 901, Piracicaba, São Paulo, 13414-903, Brazil
| | - Deborah Queiroz Freitas
- Oral Radiology Area, Piracicaba Dental School, University of Campinas, Avenida Limeira, 901, Piracicaba, São Paulo, 13414-903, Brazil
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Madlum DV, Gaêta-Araujo H, Brasil DM, Lima CAS, Oliveira ML, Haiter-Neto F. Influence of the file format and transmission app on the radiographic diagnosis of caries lesions. Oral Surg Oral Med Oral Pathol Oral Radiol 2021; 132:448-455. [PMID: 33386287 DOI: 10.1016/j.oooo.2020.11.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 11/17/2020] [Accepted: 11/29/2020] [Indexed: 10/22/2022]
Abstract
OBJECTIVES This in vitro study aimed to evaluate the influence of the radiographic image file format and the transmission application (app) on the diagnosis of proximal caries lesions. STUDY DESIGN Twenty bitewing radiographs of 40 posterior human teeth placed in phantoms were acquired using the Digora Toto digital sensor. All images were exported as TIFF (Tagged Image File Format), BMP (Windows Bitmap), PNG (Portable Network Graphics), and JPEG (Joint Photographic Experts Group) and transmitted online via WhatsApp and Messenger. Five examiners evaluated the radiographs with no online transmission and as transmitted through the 2 apps for the presence of proximal caries lesions using a 5-point scale. The reference standard for caries lesions was established using micro-computed tomography. Two-way analysis of variance compared values of sensitivity, specificity, accuracy, and area under the receiver operating characteristic curve (α = .05). The kappa test was used to assess intra- and interexaminer agreement. RESULTS Sensitivity, specificity, accuracy, and area under the receiver operating characteristic curve values showed no significant differences in the diagnosis of proximal caries lesions between the different image file formats (P ≥ .773) and transmission apps (P ≥ .608). Intraexaminer agreement was substantial (κ = 0.742) and interexaminer agreement was moderate (κ = 0.475). CONCLUSION The digital file format and transmission app did not influence the radiographic diagnosis of proximal caries lesions.
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Affiliation(s)
- Daniela Verardi Madlum
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil.
| | - Hugo Gaêta-Araujo
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Danieli Moura Brasil
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Carlos Augusto Souza Lima
- Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Division of Oral Radiology, Campinas, Brazil
| | - Matheus L Oliveira
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Francisco Haiter-Neto
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
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Reproducibility of cephalometric landmarks on posteroanterior digital radiographs using DICOM and JPEG formats. Oral Radiol 2015. [DOI: 10.1007/s11282-015-0217-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Abstract
Similar to Medicine, digital communication, information processing, and x-ray imaging have changed the face of dentistry. The incorporation of digital systems into medical and dental practice has necessitated development of a standard that allows reliable transmission of information between the devices taking the images, devices storing the images, and devices displaying the images. This standard is termed as DICOM. The following article briefly reviews how DICOM came about, how dentistry is involved, the various elements that are part of the DICOM system, and how DICOM is currently used in dentistry.
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Affiliation(s)
- Jeff Burgess
- (Retired) Clinical Assistant Professor, Department of Oral Medicine, University of Washington School of Dental Medicine; (Retired) Attending in Pain Center, University of Washington Medical Center; (Retired) Private Practice in Hawaii and Washington; Director, Oral Care Research Associates, USA
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Chen MH, Chang JZC, Kok SH, Chen YJ, Huang YD, Cheng KY, Lin CP. Intraobserver reliability of landmark identification in cone-beam computed tomography-synthesized two-dimensional cephalograms versus conventional cephalometric radiography: A preliminary study. J Dent Sci 2014. [DOI: 10.1016/j.jds.2013.02.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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