Influence of the intergonial distance on image distortion in panoramic radiographs
Identifieur interne : 002300 ( Pmc/Curation ); précédent : 002299; suivant : 002301Influence of the intergonial distance on image distortion in panoramic radiographs
Auteurs : Dbs Ladeira [Brésil] ; Ad Cruz [Brésil] ; Sm Almeida [Brésil] ; Fn B Scolo [Brésil]Source :
- Dentomaxillofacial Radiology [ 0250-832X ] ; 2012.
Abstract
The aim of this study was to evaluate the influence of the intergonial distance during the formation of panoramic radiographic images by means of horizontal and vertical measurements.
30 macerated mandibles were categorized into 3 different groups (
In all three groups magnification of the distances between spheres was observed when compared with the real distance in both horizontal and vertical measurements (
The intergonial distance is a factor that had no influence on image formation in the panoramic radiograph.
Url:
DOI: 10.1259/dmfr/59761876
PubMed: 22282504
PubMed Central: 3520349
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Brazil</addr-line></nlm:aff><country xml:lang="fr">Brésil</country><wicri:regionArea>Department of Specific Formation, Area of Radiology, Dental School of the Fluminense Federal University, University Polo of Nova Friburgo, Rio de Janeiro</wicri:regionArea></affiliation></author><author><name sortKey="Almeida, Sm" sort="Almeida, Sm" uniqKey="Almeida S" first="Sm" last="Almeida">Sm Almeida</name><affiliation wicri:level="1"><nlm:aff id="aff1"><addr-line>Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas, São Paulo, Brazil</addr-line></nlm:aff><country xml:lang="fr">Brésil</country><wicri:regionArea>Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas, São Paulo</wicri:regionArea></affiliation></author><author><name sortKey="B Scolo, Fn" sort="B Scolo, Fn" uniqKey="B Scolo F" first="Fn" last="B Scolo">Fn B Scolo</name><affiliation wicri:level="1"><nlm:aff id="aff1"><addr-line>Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas, São Paulo, Brazil</addr-line></nlm:aff><country xml:lang="fr">Brésil</country><wicri:regionArea>Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas, São Paulo</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">22282504</idno><idno type="pmc">3520349</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3520349</idno><idno type="RBID">PMC:3520349</idno><idno type="doi">10.1259/dmfr/59761876</idno><date when="2012">2012</date><idno type="wicri:Area/Pmc/Corpus">002300</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">002300</idno><idno type="wicri:Area/Pmc/Curation">002300</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">002300</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Influence of the intergonial distance on image distortion in panoramic radiographs</title><author><name sortKey="Ladeira, Dbs" sort="Ladeira, Dbs" uniqKey="Ladeira D" first="Dbs" last="Ladeira">Dbs Ladeira</name><affiliation wicri:level="1"><nlm:aff id="aff1"><addr-line>Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas, São Paulo, Brazil</addr-line></nlm:aff><country xml:lang="fr">Brésil</country><wicri:regionArea>Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas, São Paulo</wicri:regionArea></affiliation></author><author><name sortKey="Cruz, Ad" sort="Cruz, Ad" uniqKey="Cruz A" first="Ad" last="Cruz">Ad Cruz</name><affiliation wicri:level="1"><nlm:aff id="aff2"><addr-line>Department of Specific Formation, Area of Radiology, Dental School of the Fluminense Federal University, University Polo of Nova Friburgo, Rio de Janeiro, Brazil</addr-line></nlm:aff><country xml:lang="fr">Brésil</country><wicri:regionArea>Department of Specific Formation, Area of Radiology, Dental School of the Fluminense Federal University, University Polo of Nova Friburgo, Rio de Janeiro</wicri:regionArea></affiliation></author><author><name sortKey="Almeida, Sm" sort="Almeida, Sm" uniqKey="Almeida S" first="Sm" last="Almeida">Sm Almeida</name><affiliation wicri:level="1"><nlm:aff id="aff1"><addr-line>Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas, São Paulo, Brazil</addr-line></nlm:aff><country xml:lang="fr">Brésil</country><wicri:regionArea>Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas, São Paulo</wicri:regionArea></affiliation></author><author><name sortKey="B Scolo, Fn" sort="B Scolo, Fn" uniqKey="B Scolo F" first="Fn" last="B Scolo">Fn B Scolo</name><affiliation wicri:level="1"><nlm:aff id="aff1"><addr-line>Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas, São Paulo, Brazil</addr-line></nlm:aff><country xml:lang="fr">Brésil</country><wicri:regionArea>Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas, São Paulo</wicri:regionArea></affiliation></author></analytic><series><title level="j">Dentomaxillofacial Radiology</title><idno type="ISSN">0250-832X</idno><idno type="eISSN">1476-542X</idno><imprint><date when="2012">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Objectives</title><p>The aim of this study was to evaluate the influence of the intergonial distance during the formation of panoramic radiographic images by means of horizontal and vertical measurements.</p></sec><sec><title>Methods</title><p>30 macerated mandibles were categorized into 3 different groups (<italic>n</italic> = 10) according to their intergonial distances as follows: G1, mean distance 8.2 cm, G2, mean distance 9.0 cm and G3, mean distance 9.6 cm. Three metal spheres 0.198 cm in diameter and placed at an incline using an isosceles triangle were separately placed over the internal and external surfaces of the mandibles before radiographic exposure for the purpose of taking the horizontal and vertical measurements. The occlusal planes of the mandibles were horizontally placed on the chin rest of the panoramic machine Orthopantomograph® OP 100 (Instrumentarium Imaging, Tuusula, Finland) and were then radiographed. In the panoramic radiographs, an expert radiologist measured the distances between the metal spheres in the horizontal and vertical directions using a digital caliper. The data were tabled and statistically analysed by Student's <italic>t</italic>-test and analysis of variance with Tukey post-test (α = 0.05).</p></sec><sec><title>Results</title><p>In all three groups magnification of the distances between spheres was observed when compared with the real distance in both horizontal and vertical measurements (<italic>p</italic> < 0.05). Differences in both horizontal and vertical measurements were observed between the different regions (<italic>p</italic> < 0.05), however there were no differences between groups in the same region (<italic>p</italic> > 0.05). Differences between horizontal and vertical measurements were observed in different regions in all evaluated groups (<italic>p</italic> < 0.05).</p></sec><sec><title>Conclusion</title><p>The intergonial distance is a factor that had no influence on image formation in the panoramic radiograph.</p></sec></div></front></TEI><pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Dentomaxillofac Radiol</journal-id><journal-id journal-id-type="iso-abbrev">Dentomaxillofac Radiol</journal-id><journal-id journal-id-type="hwp">dmfr</journal-id><journal-id journal-id-type="publisher-id">dmf</journal-id><journal-title-group><journal-title>Dentomaxillofacial Radiology</journal-title></journal-title-group><issn pub-type="ppub">0250-832X</issn><issn pub-type="epub">1476-542X</issn><publisher><publisher-name>The British Institute of Radiology.</publisher-name><publisher-loc>36 Portland Place, London, W1B 1AT</publisher-loc></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">22282504</article-id><article-id pub-id-type="pmc">3520349</article-id><article-id pub-id-type="publisher-id">D11048</article-id><article-id pub-id-type="doi">10.1259/dmfr/59761876</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research</subject></subj-group></article-categories><title-group><article-title>Influence of the intergonial distance on image distortion in panoramic radiographs</article-title><alt-title alt-title-type="running-head">Intergonial distance and image distortion</alt-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Ladeira</surname><given-names>DBS</given-names></name><xref ref-type="corresp" rid="cor1">*</xref><xref ref-type="aff" rid="aff1">1</xref></contrib><contrib contrib-type="author"><name><surname>Cruz</surname><given-names>AD</given-names></name><xref ref-type="aff" rid="aff2">2</xref></contrib><contrib contrib-type="author"><name><surname>Almeida</surname><given-names>SM</given-names></name><xref ref-type="aff" rid="aff1">1</xref></contrib><contrib contrib-type="author"><name><surname>Bóscolo</surname><given-names>FN</given-names></name><xref ref-type="aff" rid="aff1">1</xref></contrib></contrib-group><aff id="aff1"><label>1</label><addr-line>Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas, São Paulo, Brazil</addr-line></aff><aff id="aff2"><label>2</label><addr-line>Department of Specific Formation, Area of Radiology, Dental School of the Fluminense Federal University, University Polo of Nova Friburgo, Rio de Janeiro, Brazil</addr-line></aff><author-notes><corresp id="cor1">Mrs Daniela Brait Silva Ladeira, Piracicaba Dental School, State University of Campinas – UNICAMP, Av. Limeira 901, Areião, Piracicaba, SP, Brazil. P.O. Box 52. ZipCode: 13414–903. E-mail: <email>danibrait@fop.unicamp.br</email></corresp></author-notes><pub-date pub-type="ppub"><month>7</month><year>2012</year></pub-date><volume>41</volume><issue>5</issue><fpage>417</fpage><lpage>421</lpage><history><date date-type="received"><day>10</day><month>2</month><year>2011</year></date><date date-type="rev-recd"><day>28</day><month>4</month><year>2011</year></date><date date-type="accepted"><day>29</day><month>6</month><year>2011</year></date></history><permissions><copyright-statement>© 2012 The British Institute of Radiology</copyright-statement><copyright-year>2012</copyright-year></permissions><abstract><sec><title>Objectives</title><p>The aim of this study was to evaluate the influence of the intergonial distance during the formation of panoramic radiographic images by means of horizontal and vertical measurements.</p></sec><sec><title>Methods</title><p>30 macerated mandibles were categorized into 3 different groups (<italic>n</italic> = 10) according to their intergonial distances as follows: G1, mean distance 8.2 cm, G2, mean distance 9.0 cm and G3, mean distance 9.6 cm. Three metal spheres 0.198 cm in diameter and placed at an incline using an isosceles triangle were separately placed over the internal and external surfaces of the mandibles before radiographic exposure for the purpose of taking the horizontal and vertical measurements. The occlusal planes of the mandibles were horizontally placed on the chin rest of the panoramic machine Orthopantomograph® OP 100 (Instrumentarium Imaging, Tuusula, Finland) and were then radiographed. In the panoramic radiographs, an expert radiologist measured the distances between the metal spheres in the horizontal and vertical directions using a digital caliper. The data were tabled and statistically analysed by Student's <italic>t</italic>-test and analysis of variance with Tukey post-test (α = 0.05).</p></sec><sec><title>Results</title><p>In all three groups magnification of the distances between spheres was observed when compared with the real distance in both horizontal and vertical measurements (<italic>p</italic> < 0.05). Differences in both horizontal and vertical measurements were observed between the different regions (<italic>p</italic> < 0.05), however there were no differences between groups in the same region (<italic>p</italic> > 0.05). Differences between horizontal and vertical measurements were observed in different regions in all evaluated groups (<italic>p</italic> < 0.05).</p></sec><sec><title>Conclusion</title><p>The intergonial distance is a factor that had no influence on image formation in the panoramic radiograph.</p></sec></abstract><kwd-group><kwd>radiography</kwd><kwd>panoramic</kwd><kwd>radiographic magnification</kwd><kwd>diagnostic imaging</kwd></kwd-group></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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