Radiopacity of endodontic materials using two models for conversion to millimeters of aluminum
Autor(a) principal: | |
---|---|
Data de Publicação: | 2020 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/1807-3107BOR-2020.VOL34.0080 http://hdl.handle.net/11449/200808 |
Resumo: | The aims of the present study were to compare conventional radiography, radiographs digitized with a scanner or photographic camera, and digital radiography, used to evaluate the radiopacity of endodontic materials, and to compare the accuracy of linear and quadratic models used to convert radiopacity values to equivalent millimeters of aluminum (mm Al). Specimens of AH Plus, Endofill, Biodentine and BioMTA materials (n = 8) were radiographed next to an aluminum step-wedge using radiographic films and digital radiography systems (FONA CMOS sensor, Kodak CMOS sensor and photosensitive phosphor plate-PSP). Conventional radiographs were digitized using a scanner or photographic digital camera. Digital images of all the radiographic systems were evaluated using dedicated software. Optical density units (ODU) of the specimens and the aluminum step-wedge were evaluated by a photo-densitometer (PTDM), used in conventional radiographs. The radiopacity in equivalent mm Al of the materials was determined by linear and quadratic models, and the coefficients of determination (R2) values were calculated for each model. Radiopacity of the materials ranged from-9% to 25% for digital systems and digitized radiographs, compared to the PTDM (p < 0.05). The R2 values of the quadratic model were higher than those of the linear model. In conclusion, the FONA CMOS sensor showed the lowest radiopacity variability of the methodologies used, compared with the PTDM, except for the BioMTA group (higher than PTDM). The quadratic model showed higher R2 values than the linear model, thus indicating better accuracy and possible adoption to evaluate the radiopacity of endodontic materials. |
id |
UNSP_d37fc0cf2a3532b6077086b5be6af56b |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/200808 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Radiopacity of endodontic materials using two models for conversion to millimeters of aluminumDentalDental cementsDigitalEndodonticsMaterials testingRadiographyRadiologyThe aims of the present study were to compare conventional radiography, radiographs digitized with a scanner or photographic camera, and digital radiography, used to evaluate the radiopacity of endodontic materials, and to compare the accuracy of linear and quadratic models used to convert radiopacity values to equivalent millimeters of aluminum (mm Al). Specimens of AH Plus, Endofill, Biodentine and BioMTA materials (n = 8) were radiographed next to an aluminum step-wedge using radiographic films and digital radiography systems (FONA CMOS sensor, Kodak CMOS sensor and photosensitive phosphor plate-PSP). Conventional radiographs were digitized using a scanner or photographic digital camera. Digital images of all the radiographic systems were evaluated using dedicated software. Optical density units (ODU) of the specimens and the aluminum step-wedge were evaluated by a photo-densitometer (PTDM), used in conventional radiographs. The radiopacity in equivalent mm Al of the materials was determined by linear and quadratic models, and the coefficients of determination (R2) values were calculated for each model. Radiopacity of the materials ranged from-9% to 25% for digital systems and digitized radiographs, compared to the PTDM (p < 0.05). The R2 values of the quadratic model were higher than those of the linear model. In conclusion, the FONA CMOS sensor showed the lowest radiopacity variability of the methodologies used, compared with the PTDM, except for the BioMTA group (higher than PTDM). The quadratic model showed higher R2 values than the linear model, thus indicating better accuracy and possible adoption to evaluate the radiopacity of endodontic materials.Universidade Estadual Paulista-Unesp Araraquara School of Dentistry Department of Restorative DentistryUniversity of Magdalena School of Oral Sciences Department of DentistryUniversidade Estadual Paulista-Unesp Araraquara School of Dentistry Department of Oral Diagnosis and SurgeryAarhus University School of Health Department of Dentistry and Oral HealthUniversidade Estadual Paulista-Unesp Araraquara School of Dentistry Department of Restorative DentistryUniversidade Estadual Paulista-Unesp Araraquara School of Dentistry Department of Oral Diagnosis and SurgeryUniversidade Estadual Paulista (Unesp)School of Oral SciencesSchool of HealthOchoa-Rodríguez, Victor Manuel [UNESP]Wilches-Visbal, Jorge HomeroRoma, Barbara [UNESP]Coaguila-Llerena, Hernán [UNESP]Tanomaru-Filho, Mário [UNESP]Gonçalves, Andréa [UNESP]Spin-Neto, RubensFaria, Gisele [UNESP]2020-12-12T02:16:34Z2020-12-12T02:16:34Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1590/1807-3107BOR-2020.VOL34.0080Brazilian Oral Research, v. 34.1807-31071806-8324http://hdl.handle.net/11449/20080810.1590/1807-3107BOR-2020.VOL34.0080S1806-832420200001002582-s2.0-85088484294S1806-83242020000100258.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Oral Researchinfo:eu-repo/semantics/openAccess2024-09-27T18:04:00Zoai:repositorio.unesp.br:11449/200808Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-27T18:04Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Radiopacity of endodontic materials using two models for conversion to millimeters of aluminum |
title |
Radiopacity of endodontic materials using two models for conversion to millimeters of aluminum |
spellingShingle |
Radiopacity of endodontic materials using two models for conversion to millimeters of aluminum Ochoa-Rodríguez, Victor Manuel [UNESP] Dental Dental cements Digital Endodontics Materials testing Radiography Radiology |
title_short |
Radiopacity of endodontic materials using two models for conversion to millimeters of aluminum |
title_full |
Radiopacity of endodontic materials using two models for conversion to millimeters of aluminum |
title_fullStr |
Radiopacity of endodontic materials using two models for conversion to millimeters of aluminum |
title_full_unstemmed |
Radiopacity of endodontic materials using two models for conversion to millimeters of aluminum |
title_sort |
Radiopacity of endodontic materials using two models for conversion to millimeters of aluminum |
author |
Ochoa-Rodríguez, Victor Manuel [UNESP] |
author_facet |
Ochoa-Rodríguez, Victor Manuel [UNESP] Wilches-Visbal, Jorge Homero Roma, Barbara [UNESP] Coaguila-Llerena, Hernán [UNESP] Tanomaru-Filho, Mário [UNESP] Gonçalves, Andréa [UNESP] Spin-Neto, Rubens Faria, Gisele [UNESP] |
author_role |
author |
author2 |
Wilches-Visbal, Jorge Homero Roma, Barbara [UNESP] Coaguila-Llerena, Hernán [UNESP] Tanomaru-Filho, Mário [UNESP] Gonçalves, Andréa [UNESP] Spin-Neto, Rubens Faria, Gisele [UNESP] |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) School of Oral Sciences School of Health |
dc.contributor.author.fl_str_mv |
Ochoa-Rodríguez, Victor Manuel [UNESP] Wilches-Visbal, Jorge Homero Roma, Barbara [UNESP] Coaguila-Llerena, Hernán [UNESP] Tanomaru-Filho, Mário [UNESP] Gonçalves, Andréa [UNESP] Spin-Neto, Rubens Faria, Gisele [UNESP] |
dc.subject.por.fl_str_mv |
Dental Dental cements Digital Endodontics Materials testing Radiography Radiology |
topic |
Dental Dental cements Digital Endodontics Materials testing Radiography Radiology |
description |
The aims of the present study were to compare conventional radiography, radiographs digitized with a scanner or photographic camera, and digital radiography, used to evaluate the radiopacity of endodontic materials, and to compare the accuracy of linear and quadratic models used to convert radiopacity values to equivalent millimeters of aluminum (mm Al). Specimens of AH Plus, Endofill, Biodentine and BioMTA materials (n = 8) were radiographed next to an aluminum step-wedge using radiographic films and digital radiography systems (FONA CMOS sensor, Kodak CMOS sensor and photosensitive phosphor plate-PSP). Conventional radiographs were digitized using a scanner or photographic digital camera. Digital images of all the radiographic systems were evaluated using dedicated software. Optical density units (ODU) of the specimens and the aluminum step-wedge were evaluated by a photo-densitometer (PTDM), used in conventional radiographs. The radiopacity in equivalent mm Al of the materials was determined by linear and quadratic models, and the coefficients of determination (R2) values were calculated for each model. Radiopacity of the materials ranged from-9% to 25% for digital systems and digitized radiographs, compared to the PTDM (p < 0.05). The R2 values of the quadratic model were higher than those of the linear model. In conclusion, the FONA CMOS sensor showed the lowest radiopacity variability of the methodologies used, compared with the PTDM, except for the BioMTA group (higher than PTDM). The quadratic model showed higher R2 values than the linear model, thus indicating better accuracy and possible adoption to evaluate the radiopacity of endodontic materials. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T02:16:34Z 2020-12-12T02:16:34Z 2020-01-01 |
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/10.1590/1807-3107BOR-2020.VOL34.0080 Brazilian Oral Research, v. 34. 1807-3107 1806-8324 http://hdl.handle.net/11449/200808 10.1590/1807-3107BOR-2020.VOL34.0080 S1806-83242020000100258 2-s2.0-85088484294 S1806-83242020000100258.pdf |
url |
http://dx.doi.org/10.1590/1807-3107BOR-2020.VOL34.0080 http://hdl.handle.net/11449/200808 |
identifier_str_mv |
Brazilian Oral Research, v. 34. 1807-3107 1806-8324 10.1590/1807-3107BOR-2020.VOL34.0080 S1806-83242020000100258 2-s2.0-85088484294 S1806-83242020000100258.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Brazilian Oral Research |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
Scopus 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 |
repositoriounesp@unesp.br |
_version_ |
1813546443599773696 |