Comparison of changes in dental and bone radiographic densities in the presence of different soft-tissue simulators using pixel intensity and digital subtraction analyses
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1259/dmfr.20130235 http://hdl.handle.net/11449/112502 |
Resumo: | Objectives: To evaluate the influence of soft-tissue simulation materials on dental and bone tissue radiographic densities using pixel intensity (PI) and digital subtraction radiography (DSR) analyses.Methods: 15 dry human mandibles were divided into halves. Each half was radiographed using a charge-coupled device sensor without a soft-tissue simulation material (Wm) and with 5 types of materials: acrylic (Ac), wax (Wx), water (Wt), wood (Wd) and frozen bovine tissue (Bt). Three thicknesses were tested for each material: 10 mm, 15 mm and 20 mm. The material was positioned in front of the mandible and the sensor parallel to the molar region. The radiation beam was perpendicular to the sensor at 30 cm focal spot-to-object distance. The digital images of the bone and dental tissue were captured for PI analyses. The subtracted images were marked with 14 landmark magnifications, and 2 areas of analyses were defined, forming the regions of interest. Shapiro-Wilk and Kruskal-Wallis tests followed by Dunn's post-test were used (p < 0.05).Results: DSR showed that both the material type and the thickness tested influenced the gain of density in bone tissue (p < 0.05). PI analyses of the bone region did not show these differences, except for the lower density observed in the image without soft-tissue simulation material. In the dental region, both DSR and PI showed that soft-tissue simulators did not influence the density in these regions.Conclusions: This study showed that the materials evaluated and their thicknesses significantly influenced the density-level gain in alveolar bone. In dental tissues, there was no density-level gain with any soft-tissue material tested. |
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Comparison of changes in dental and bone radiographic densities in the presence of different soft-tissue simulators using pixel intensity and digital subtraction analysesdigital radiographydental radiographysubtraction techniquebone densityradiographyObjectives: To evaluate the influence of soft-tissue simulation materials on dental and bone tissue radiographic densities using pixel intensity (PI) and digital subtraction radiography (DSR) analyses.Methods: 15 dry human mandibles were divided into halves. Each half was radiographed using a charge-coupled device sensor without a soft-tissue simulation material (Wm) and with 5 types of materials: acrylic (Ac), wax (Wx), water (Wt), wood (Wd) and frozen bovine tissue (Bt). Three thicknesses were tested for each material: 10 mm, 15 mm and 20 mm. The material was positioned in front of the mandible and the sensor parallel to the molar region. The radiation beam was perpendicular to the sensor at 30 cm focal spot-to-object distance. The digital images of the bone and dental tissue were captured for PI analyses. The subtracted images were marked with 14 landmark magnifications, and 2 areas of analyses were defined, forming the regions of interest. Shapiro-Wilk and Kruskal-Wallis tests followed by Dunn's post-test were used (p < 0.05).Results: DSR showed that both the material type and the thickness tested influenced the gain of density in bone tissue (p < 0.05). PI analyses of the bone region did not show these differences, except for the lower density observed in the image without soft-tissue simulation material. In the dental region, both DSR and PI showed that soft-tissue simulators did not influence the density in these regions.Conclusions: This study showed that the materials evaluated and their thicknesses significantly influenced the density-level gain in alveolar bone. In dental tissues, there was no density-level gain with any soft-tissue material tested.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Univ Estadual Paulista, Sch Dent Araraquara, Dept Diag & Surg, BR-14801903 Araraquara, SP, BrazilAarhus Univ, Dept Dent, Aarhus, DenmarkBarretos Educ Fdn, Barretos Dent Sch, Dept Implantol, Sao Paulo, BrazilUniv Estadual Paulista, Sch Dent Araraquara, Dept Diag & Surg, BR-14801903 Araraquara, SP, BrazilFAPESP: 08/10680-0FAPESP: 08/10145-8British Inst RadiologyUniversidade Estadual Paulista (Unesp)Aarhus UnivBarretos Educ FdnMolon, R. S. de [UNESP]Batitucci, R. G. [UNESP]Spin-Neto, R.Paquier, G. M. [UNESP]Sakakura, C. E.Tosoni, Guilherme Monteiro [UNESP]Scaf, Gulnara [UNESP]2014-12-03T13:10:46Z2014-12-03T13:10:46Z2013-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article7application/pdfhttp://dx.doi.org/10.1259/dmfr.20130235Dentomaxillofacial Radiology. London: British Inst Radiology, v. 42, n. 9, 7 p., 2013.0250-832Xhttp://hdl.handle.net/11449/11250210.1259/dmfr.20130235WOS:000325741900009WOS000325741900009.pdf0692567697594977Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengDentomaxillofacial Radiology1.848info:eu-repo/semantics/openAccess2023-10-04T06:06:25Zoai:repositorio.unesp.br:11449/112502Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T13:59:47.197853Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Comparison of changes in dental and bone radiographic densities in the presence of different soft-tissue simulators using pixel intensity and digital subtraction analyses |
title |
Comparison of changes in dental and bone radiographic densities in the presence of different soft-tissue simulators using pixel intensity and digital subtraction analyses |
spellingShingle |
Comparison of changes in dental and bone radiographic densities in the presence of different soft-tissue simulators using pixel intensity and digital subtraction analyses Molon, R. S. de [UNESP] digital radiography dental radiography subtraction technique bone density radiography |
title_short |
Comparison of changes in dental and bone radiographic densities in the presence of different soft-tissue simulators using pixel intensity and digital subtraction analyses |
title_full |
Comparison of changes in dental and bone radiographic densities in the presence of different soft-tissue simulators using pixel intensity and digital subtraction analyses |
title_fullStr |
Comparison of changes in dental and bone radiographic densities in the presence of different soft-tissue simulators using pixel intensity and digital subtraction analyses |
title_full_unstemmed |
Comparison of changes in dental and bone radiographic densities in the presence of different soft-tissue simulators using pixel intensity and digital subtraction analyses |
title_sort |
Comparison of changes in dental and bone radiographic densities in the presence of different soft-tissue simulators using pixel intensity and digital subtraction analyses |
author |
Molon, R. S. de [UNESP] |
author_facet |
Molon, R. S. de [UNESP] Batitucci, R. G. [UNESP] Spin-Neto, R. Paquier, G. M. [UNESP] Sakakura, C. E. Tosoni, Guilherme Monteiro [UNESP] Scaf, Gulnara [UNESP] |
author_role |
author |
author2 |
Batitucci, R. G. [UNESP] Spin-Neto, R. Paquier, G. M. [UNESP] Sakakura, C. E. Tosoni, Guilherme Monteiro [UNESP] Scaf, Gulnara [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Aarhus Univ Barretos Educ Fdn |
dc.contributor.author.fl_str_mv |
Molon, R. S. de [UNESP] Batitucci, R. G. [UNESP] Spin-Neto, R. Paquier, G. M. [UNESP] Sakakura, C. E. Tosoni, Guilherme Monteiro [UNESP] Scaf, Gulnara [UNESP] |
dc.subject.por.fl_str_mv |
digital radiography dental radiography subtraction technique bone density radiography |
topic |
digital radiography dental radiography subtraction technique bone density radiography |
description |
Objectives: To evaluate the influence of soft-tissue simulation materials on dental and bone tissue radiographic densities using pixel intensity (PI) and digital subtraction radiography (DSR) analyses.Methods: 15 dry human mandibles were divided into halves. Each half was radiographed using a charge-coupled device sensor without a soft-tissue simulation material (Wm) and with 5 types of materials: acrylic (Ac), wax (Wx), water (Wt), wood (Wd) and frozen bovine tissue (Bt). Three thicknesses were tested for each material: 10 mm, 15 mm and 20 mm. The material was positioned in front of the mandible and the sensor parallel to the molar region. The radiation beam was perpendicular to the sensor at 30 cm focal spot-to-object distance. The digital images of the bone and dental tissue were captured for PI analyses. The subtracted images were marked with 14 landmark magnifications, and 2 areas of analyses were defined, forming the regions of interest. Shapiro-Wilk and Kruskal-Wallis tests followed by Dunn's post-test were used (p < 0.05).Results: DSR showed that both the material type and the thickness tested influenced the gain of density in bone tissue (p < 0.05). PI analyses of the bone region did not show these differences, except for the lower density observed in the image without soft-tissue simulation material. In the dental region, both DSR and PI showed that soft-tissue simulators did not influence the density in these regions.Conclusions: This study showed that the materials evaluated and their thicknesses significantly influenced the density-level gain in alveolar bone. In dental tissues, there was no density-level gain with any soft-tissue material tested. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-09-01 2014-12-03T13:10:46Z 2014-12-03T13:10:46Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1259/dmfr.20130235 Dentomaxillofacial Radiology. London: British Inst Radiology, v. 42, n. 9, 7 p., 2013. 0250-832X http://hdl.handle.net/11449/112502 10.1259/dmfr.20130235 WOS:000325741900009 WOS000325741900009.pdf 0692567697594977 |
url |
http://dx.doi.org/10.1259/dmfr.20130235 http://hdl.handle.net/11449/112502 |
identifier_str_mv |
Dentomaxillofacial Radiology. London: British Inst Radiology, v. 42, n. 9, 7 p., 2013. 0250-832X 10.1259/dmfr.20130235 WOS:000325741900009 WOS000325741900009.pdf 0692567697594977 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Dentomaxillofacial Radiology 1.848 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
7 application/pdf |
dc.publisher.none.fl_str_mv |
British Inst Radiology |
publisher.none.fl_str_mv |
British Inst Radiology |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1808128301706772480 |