A new bite block for panoramic radiographs of anterior edentulous patients: A technical report
Identifieur interne : 001073 ( Pmc/Checkpoint ); précédent : 001072; suivant : 001074A new bite block for panoramic radiographs of anterior edentulous patients: A technical report
Auteurs : Jong-Woong Park [Corée du Sud] ; Khanthaly Symkhampha [Laos] ; Kyung-Hoe Huh [Corée du Sud] ; Won-Jin Yi [Corée du Sud] ; Min-Suk Heo [Corée du Sud] ; Sam-Sun Lee [Corée du Sud] ; Soon-Chul Choi [Corée du Sud]Source :
- Imaging Science in Dentistry [ 2233-7822 ] ; 2015.
Abstract
Panoramic radiographs taken using conventional chin-support devices have often presented problems with positioning accuracy and reproducibility. The aim of this report was to propose a new bite block for panoramic radiographs of anterior edentulous patients that better addresses these two issues.
A new panoramic radiography bite block similar to the bite block for dentulous patients was developed to enable proper positioning stability for edentulous patients. The new bite block was designed and implemented in light of previous studies. The height of the new bite block was 18 mm and to compensate for the horizontal edentulous space, its horizontal width was 7 mm. The panoramic radiographs using the new bite block were compared with those using the conventional chin-support device.
Panoramic radiographs taken with the new bite block showed better stability and bilateral symmetry than those taken with the conventional chin-support device. Patients also showed less movement and more stable positioning during panoramic radiography with the new bite block.
Conventional errors in panoramic radiographs of edentulous patients could be caused by unreliability of the chin-support device. The newly proposed bite block for panoramic radiographs of edentulous patients showed better reliability. Further study is required to evaluate the image quality and reproducibility of images with the new bite block.
Url:
DOI: 10.5624/isd.2015.45.2.117
PubMed: 26125007
PubMed Central: 4483618
Affiliations:
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<front><div type="abstract" xml:lang="en"><sec><title>Purpose</title>
<p>Panoramic radiographs taken using conventional chin-support devices have often presented problems with positioning accuracy and reproducibility. The aim of this report was to propose a new bite block for panoramic radiographs of anterior edentulous patients that better addresses these two issues.</p>
</sec>
<sec><title>Materials and Methods</title>
<p>A new panoramic radiography bite block similar to the bite block for dentulous patients was developed to enable proper positioning stability for edentulous patients. The new bite block was designed and implemented in light of previous studies. The height of the new bite block was 18 mm and to compensate for the horizontal edentulous space, its horizontal width was 7 mm. The panoramic radiographs using the new bite block were compared with those using the conventional chin-support device.</p>
</sec>
<sec><title>Results</title>
<p>Panoramic radiographs taken with the new bite block showed better stability and bilateral symmetry than those taken with the conventional chin-support device. Patients also showed less movement and more stable positioning during panoramic radiography with the new bite block.</p>
</sec>
<sec><title>Conclusion</title>
<p>Conventional errors in panoramic radiographs of edentulous patients could be caused by unreliability of the chin-support device. The newly proposed bite block for panoramic radiographs of edentulous patients showed better reliability. Further study is required to evaluate the image quality and reproducibility of images with the new bite block.</p>
</sec>
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<front><journal-meta><journal-id journal-id-type="nlm-ta">Imaging Sci Dent</journal-id>
<journal-id journal-id-type="iso-abbrev">Imaging Sci Dent</journal-id>
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<issn pub-type="ppub">2233-7822</issn>
<issn pub-type="epub">2233-7830</issn>
<publisher><publisher-name>Korean Academy of Oral and Maxillofacial Radiology</publisher-name>
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<article-id pub-id-type="doi">10.5624/isd.2015.45.2.117</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Technical Report</subject>
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<title-group><article-title>A new bite block for panoramic radiographs of anterior edentulous patients: A technical report</article-title>
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<contrib-group><contrib contrib-type="author"><name><surname>Park</surname>
<given-names>Jong-Woong</given-names>
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<contrib contrib-type="author"><name><surname>Symkhampha</surname>
<given-names>Khanthaly</given-names>
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<contrib contrib-type="author"><name><surname>Huh</surname>
<given-names>Kyung-Hoe</given-names>
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<contrib contrib-type="author"><name><surname>Yi</surname>
<given-names>Won-Jin</given-names>
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</contrib>
<contrib contrib-type="author" corresp="yes"><name><surname>Heo</surname>
<given-names>Min-Suk</given-names>
</name>
<xref ref-type="aff" rid="A1">1</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Lee</surname>
<given-names>Sam-Sun</given-names>
</name>
<xref ref-type="aff" rid="A1">1</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Choi</surname>
<given-names>Soon-Chul</given-names>
</name>
<xref ref-type="aff" rid="A1">1</xref>
</contrib>
</contrib-group>
<aff id="A1"><label>1</label>
Department of Oral and Maxillofacial Radiology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea.</aff>
<aff id="A2"><label>2</label>
Division of Oral and Maxillofacial Radiology, Department of Basic Science, Faculty of Dentistry, University of Health Sciences, Vientiane, Laos.</aff>
<author-notes><corresp>Correspondence to: Prof. Min-Suk Heo. Department of Oral and Maxillofacial Radiology, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 110-749, Korea. Tel) 82-2-2072-3016, Fax) 82-2-744-3919, <email>hmslsh@snu.ac.kr</email>
</corresp>
</author-notes>
<pub-date pub-type="ppub"><month>6</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub"><day>19</day>
<month>6</month>
<year>2015</year>
</pub-date>
<volume>45</volume>
<issue>2</issue>
<fpage>117</fpage>
<lpage>122</lpage>
<history><date date-type="received"><day>02</day>
<month>2</month>
<year>2015</year>
</date>
<date date-type="rev-recd"><day>03</day>
<month>3</month>
<year>2015</year>
</date>
<date date-type="accepted"><day>15</day>
<month>3</month>
<year>2015</year>
</date>
</history>
<permissions><copyright-statement>Copyright © 2015 by Korean Academy of Oral and Maxillofacial Radiology</copyright-statement>
<copyright-year>2015</copyright-year>
<license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by-nc/3.0/"><license-p>This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by-nc/3.0/">http://creativecommons.org/licenses/by-nc/3.0/</ext-link>
) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p>
</license>
</permissions>
<abstract><sec><title>Purpose</title>
<p>Panoramic radiographs taken using conventional chin-support devices have often presented problems with positioning accuracy and reproducibility. The aim of this report was to propose a new bite block for panoramic radiographs of anterior edentulous patients that better addresses these two issues.</p>
</sec>
<sec><title>Materials and Methods</title>
<p>A new panoramic radiography bite block similar to the bite block for dentulous patients was developed to enable proper positioning stability for edentulous patients. The new bite block was designed and implemented in light of previous studies. The height of the new bite block was 18 mm and to compensate for the horizontal edentulous space, its horizontal width was 7 mm. The panoramic radiographs using the new bite block were compared with those using the conventional chin-support device.</p>
</sec>
<sec><title>Results</title>
<p>Panoramic radiographs taken with the new bite block showed better stability and bilateral symmetry than those taken with the conventional chin-support device. Patients also showed less movement and more stable positioning during panoramic radiography with the new bite block.</p>
</sec>
<sec><title>Conclusion</title>
<p>Conventional errors in panoramic radiographs of edentulous patients could be caused by unreliability of the chin-support device. The newly proposed bite block for panoramic radiographs of edentulous patients showed better reliability. Further study is required to evaluate the image quality and reproducibility of images with the new bite block.</p>
</sec>
</abstract>
<kwd-group><kwd>Panoramic, Radiography</kwd>
<kwd>Bite Block</kwd>
<kwd>Reproducibility of Results</kwd>
</kwd-group>
<funding-group><award-group><funding-source country="KR">Seoul National University Dental Hospital</funding-source>
<award-id>04-2012-0058</award-id>
</award-group>
</funding-group>
</article-meta>
</front>
<floats-group><fig id="F1" orientation="portrait" position="float"><label>Fig. 1</label>
<caption><title>A. The conventional bite block for anterior edentulous patients. B. The chin-support device for anterior edentulous patients.</title>
</caption>
<graphic xlink:href="isd-45-117-g001"></graphic>
</fig>
<fig id="F2" orientation="portrait" position="float"><label>Fig. 2</label>
<caption><title>A and B. Two panoramic radiographs acquired from the same anterior edentulous patient using a conventional chin-support device show lack of reproducibility in the inter-maxillary vertical dimension.</title>
</caption>
<graphic xlink:href="isd-45-117-g002"></graphic>
</fig>
<fig id="F3" orientation="portrait" position="float"><label>Fig. 3</label>
<caption><title>A. The new bite block for anterior edentulous patients. B. The conventional standard bite block for anterior dentulous patients.</title>
</caption>
<graphic xlink:href="isd-45-117-g003"></graphic>
</fig>
<fig id="F4" orientation="portrait" position="float"><label>Fig. 4</label>
<caption><title>A. The calculation to determine the height of the new bite block. B. The horizontal distance calculation to determine the antero-posterior dimension of the new bite block.</title>
</caption>
<graphic xlink:href="isd-45-117-g004"></graphic>
</fig>
<fig id="F5" orientation="portrait" position="float"><label>Fig. 5</label>
<caption><title>panoramic radiographs acquired from anterior edentulous patients using the conventional chin-support device. A. The radiograph shows insufficient inter-maxillary vertical height. B. The radiograph shows asymmetry although the patient's jaw is not asymmetrical. C. The panoramic radiographs acquired from an anterior edentulous patient using the conventional chin-support device show horizontal magnification.</title>
</caption>
<graphic xlink:href="isd-45-117-g005"></graphic>
</fig>
<fig id="F6" orientation="portrait" position="float"><label>Fig. 6</label>
<caption><title>A and B. The panoramic radiographs taken using the new bite block showed a more suitable vertical height and antero-posterior position, and better bilateral symmetry than the panoramic radiographs taken using the chin-support device.</title>
</caption>
<graphic xlink:href="isd-45-117-g006"></graphic>
</fig>
</floats-group>
</pmc>
<affiliations><list><country><li>Corée du Sud</li>
<li>Laos</li>
</country>
<region><li>Région capitale de Séoul</li>
</region>
<settlement><li>Séoul</li>
</settlement>
<orgName><li>Université nationale de Séoul</li>
</orgName>
</list>
<tree><country name="Corée du Sud"><region name="Région capitale de Séoul"><name sortKey="Park, Jong Woong" sort="Park, Jong Woong" uniqKey="Park J" first="Jong-Woong" last="Park">Jong-Woong Park</name>
</region>
<name sortKey="Choi, Soon Chul" sort="Choi, Soon Chul" uniqKey="Choi S" first="Soon-Chul" last="Choi">Soon-Chul Choi</name>
<name sortKey="Heo, Min Suk" sort="Heo, Min Suk" uniqKey="Heo M" first="Min-Suk" last="Heo">Min-Suk Heo</name>
<name sortKey="Huh, Kyung Hoe" sort="Huh, Kyung Hoe" uniqKey="Huh K" first="Kyung-Hoe" last="Huh">Kyung-Hoe Huh</name>
<name sortKey="Lee, Sam Sun" sort="Lee, Sam Sun" uniqKey="Lee S" first="Sam-Sun" last="Lee">Sam-Sun Lee</name>
<name sortKey="Yi, Won Jin" sort="Yi, Won Jin" uniqKey="Yi W" first="Won-Jin" last="Yi">Won-Jin Yi</name>
</country>
<country name="Laos"><noRegion><name sortKey="Symkhampha, Khanthaly" sort="Symkhampha, Khanthaly" uniqKey="Symkhampha K" first="Khanthaly" last="Symkhampha">Khanthaly Symkhampha</name>
</noRegion>
</country>
</tree>
</affiliations>
</record>
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