Journal article
Impact of cone-beam computed tomography scan mode on the diagnostic yield of chemically simulated external root resorption
American journal of orthodontics and dentofacial orthopedics, Vol.151(6), pp.1073-1082
06/2017
DOI: 10.1016/j.ajodo.2016.10.041
PMID: 28554453
Abstract
The aim of this in-vitro study was to evaluate the influence of cone-beam computed tomography scans on the diagnosis of chemically simulated external root resorption.
One hundred extracted anterior teeth were selected. Subsurface demineralization was induced on a limited area of the apical third of the root of 49 teeth. Each tooth was placed in an empty socket of a partially edentulous dry mandible. Cone-beam computed tomography images were obtained according to 3 protocols: (1) half scan, 0.40-mm voxel size; (2) full scan, 0.40-mm voxel size; and (3) full scan, 0.125-mm voxel size. Three observers evaluated the images. Sensitivity, specificity, accuracy, and area under the curve were compared with the Cochran Q and Mann-Whitney U tests.
Protocol 3 had the highest sensitivity (81.63%), accuracy (80.67%), and area under the curve (0.807). There were statistically significant differences between protocol 3 and the other 2 protocols (P <0.001). The specificity of protocol 1 (84.97%) was greater than that of protocols 2 (69.93%) and 3 (79.74%); however, a statistically significant difference was found only between protocols 1 and 2 (P = 0.005).
A more dedicated, high-resolution scan should be acquired when one intends to investigate the early stage of external root resorption during orthodontic treatment. However, this does not imply that all orthodontic patients should be subjected to high-dose cone-beam computed tomography scans.
Details
- Title: Subtitle
- Impact of cone-beam computed tomography scan mode on the diagnostic yield of chemically simulated external root resorption
- Creators
- Saulo L Sousa Melo - Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, Iowa. Electronic address: saulo-sousamelo@uiowa.eduKarla de Faria Vasconcelos - Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Campinas, São Paulo, BrazilNathan Holton - Department of Orthodontics, College of Dentistry, University of Iowa, Iowa City, IowaVeeratrishul Allareddy - Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IowaVeerasathpurush Allareddy - Department of Orthodontics, College of Dentistry, University of Iowa, Iowa City, IowaCinthia Pereira Machado Tabchoury - Department of Physiological Science, Piracicaba Dental School, University of Campinas, Campinas, São Paulo, BrazilFrancisco Haiter-Neto - Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, São Paulo, BrazilAxel Ruprecht - Departments of Oral Pathology, Radiology and Medicine; Radiology; and Anatomy and Cell Biology, Colleges of Dentistry and Medicine, University of Iowa, Iowa City, Iowa
- Resource Type
- Journal article
- Publication Details
- American journal of orthodontics and dentofacial orthopedics, Vol.151(6), pp.1073-1082
- DOI
- 10.1016/j.ajodo.2016.10.041
- PMID
- 28554453
- NLM abbreviation
- Am J Orthod Dentofacial Orthop
- ISSN
- 0889-5406
- eISSN
- 1097-6752
- Publisher
- United States
- Language
- English
- Date published
- 06/2017
- Academic Unit
- Radiology; Anthropology; Oral Pathology, Radiology and Medicine; Anatomy and Cell Biology; Craniofacial Anomalies Research Center
- Record Identifier
- 9984065716602771
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