Clinical and Radiographic Findings and Usefulness of Computed Tomographic Assessment in Two Children with Regional Odontodysplasia
Identifieur interne : 001C36 ( Main/Exploration ); précédent : 001C35; suivant : 001C37Clinical and Radiographic Findings and Usefulness of Computed Tomographic Assessment in Two Children with Regional Odontodysplasia
Auteurs : Junko Matsuyama [Japon] ; Ray Tanaka [Japon] ; Futabako Iizawa [Japon] ; Tomiko Sano [Japon] ; Shoko Kinoshita-Kawano [Japon] ; Sachiko Hayashi-Sakai [Japon] ; Tomoe Mitomi [Japon]Source :
- Case Reports in Dentistry [ 2090-6447 ] ; 2014.
Abstract
Regional odontodysplasia is a rare, severe, and nonhereditary developmental disorder in tooth formation and involves epithelial and mesenchymal-derived dental tissue. On radiographs, affected teeth have an abnormal morphology, a hypoplastic crown, and only a faint outline of hard tissue, a condition termed “ghost teeth.” We report clinical and radiographic findings from two children with regional odontodysplasia. Using computed tomography (CT), we calculated attenuation coefficients (i.e., Hounsfield units) for affected teeth and assessed the condition of dental follicles. To measure density, regions of interest were delimited and CT values were calculated. In our two patients, the CT values for enamel were lower in affected teeth than in sound teeth, while CT values for dentin were similar for affected and sound teeth. The average CT value for dental follicles in affected teeth was about 65 to 120, which suggests that dense fibrous connective tissues or hard tissue-like structures might be present in dental follicles. Analysis of CT values may be quite useful in the diagnosis and treatment of regional odontodysplasia.
Url:
DOI: 10.1155/2014/764393
PubMed: 25250179
PubMed Central: 4163494
Affiliations:
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Findings and Usefulness of Computed Tomographic Assessment in Two Children with Regional Odontodysplasia</title><author><name sortKey="Matsuyama, Junko" sort="Matsuyama, Junko" uniqKey="Matsuyama J" first="Junko" last="Matsuyama">Junko Matsuyama</name><affiliation wicri:level="1"><nlm:aff id="I1">Division of Pediatric Dentistry, Graduate School of Medical and Dental Sciences, Niigata University, 2-5274 Gakkocho-dori, Chuo-ku, Niigata 951-8514, Japan</nlm:aff><country xml:lang="fr">Japon</country><wicri:regionArea>Division of Pediatric Dentistry, Graduate School of Medical and Dental Sciences, Niigata University, 2-5274 Gakkocho-dori, Chuo-ku, Niigata 951-8514</wicri:regionArea><wicri:noRegion>Niigata 951-8514</wicri:noRegion></affiliation></author><author><name sortKey="Tanaka, Ray" sort="Tanaka, Ray" uniqKey="Tanaka R" first="Ray" last="Tanaka">Ray Tanaka</name><affiliation wicri:level="1"><nlm:aff id="I2">Division of Oral and Maxillofacial Radiology, Graduate School of Medical and 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Sano</name><affiliation wicri:level="1"><nlm:aff id="I1">Division of Pediatric Dentistry, Graduate School of Medical and Dental Sciences, Niigata University, 2-5274 Gakkocho-dori, Chuo-ku, Niigata 951-8514, Japan</nlm:aff><country xml:lang="fr">Japon</country><wicri:regionArea>Division of Pediatric Dentistry, Graduate School of Medical and Dental Sciences, Niigata University, 2-5274 Gakkocho-dori, Chuo-ku, Niigata 951-8514</wicri:regionArea><wicri:noRegion>Niigata 951-8514</wicri:noRegion></affiliation></author><author><name sortKey="Kinoshita Kawano, Shoko" sort="Kinoshita Kawano, Shoko" uniqKey="Kinoshita Kawano S" first="Shoko" last="Kinoshita-Kawano">Shoko Kinoshita-Kawano</name><affiliation wicri:level="1"><nlm:aff id="I1">Division of Pediatric Dentistry, Graduate School of Medical and Dental Sciences, Niigata University, 2-5274 Gakkocho-dori, Chuo-ku, Niigata 951-8514, Japan</nlm:aff><country xml:lang="fr">Japon</country><wicri:regionArea>Division of Pediatric Dentistry, Graduate 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Mitomi</name><affiliation wicri:level="1"><nlm:aff id="I1">Division of Pediatric Dentistry, Graduate School of Medical and Dental Sciences, Niigata University, 2-5274 Gakkocho-dori, Chuo-ku, Niigata 951-8514, Japan</nlm:aff><country xml:lang="fr">Japon</country><wicri:regionArea>Division of Pediatric Dentistry, Graduate School of Medical and Dental Sciences, Niigata University, 2-5274 Gakkocho-dori, Chuo-ku, Niigata 951-8514</wicri:regionArea><wicri:noRegion>Niigata 951-8514</wicri:noRegion></affiliation></author></analytic><series><title level="j">Case Reports in Dentistry</title><idno type="ISSN">2090-6447</idno><idno type="eISSN">2090-6455</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>Regional odontodysplasia is a rare, severe, and nonhereditary developmental disorder in tooth formation and involves epithelial and mesenchymal-derived dental tissue. On radiographs, affected teeth have an abnormal morphology, a hypoplastic crown, and only a faint outline of hard tissue, a condition termed “ghost teeth.” We report clinical and radiographic findings from two children with regional odontodysplasia. Using computed tomography (CT), we calculated attenuation coefficients (i.e., Hounsfield units) for affected teeth and assessed the condition of dental follicles. To measure density, regions of interest were delimited and CT values were calculated. In our two patients, the CT values for enamel were lower in affected teeth than in sound teeth, while CT values for dentin were similar for affected and sound teeth. The average CT value for dental follicles in affected teeth was about 65 to 120, which suggests that dense fibrous connective tissues or hard tissue-like structures might be present in dental follicles. Analysis of CT values may be quite useful in the diagnosis and treatment of regional odontodysplasia.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Hitchin, Ad" uniqKey="Hitchin A">AD Hitchin</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Zegarelli, Ev" uniqKey="Zegarelli E">EV Zegarelli</name></author><author><name sortKey="Kutscher, Ah" uniqKey="Kutscher A">AH Kutscher</name></author><author><name sortKey="Applebaum, E" uniqKey="Applebaum E">E Applebaum</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Crawford, Pjm" uniqKey="Crawford P">PJM Crawford</name></author><author><name sortKey="Aldred, Mj" uniqKey="Aldred M">MJ Aldred</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Iizawa, F" uniqKey="Iizawa F">F Iizawa</name></author><author><name sortKey="Kinjoh, N" uniqKey="Kinjoh N">N Kinjoh</name></author><author><name 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uniqKey="Friedlander Barenboim S">S Friedlander-Barenboim</name></author><author><name sortKey="Kamburo Lu, K" uniqKey="Kamburo Lu K">K Kamburoğlu</name></author><author><name sortKey="Kaffe, I" uniqKey="Kaffe I">I Kaffe</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Wegener, Oh" uniqKey="Wegener O">OH Wegener</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Crusoe Rebello, I" uniqKey="Crusoe Rebello I">I Crusoé-Rebello</name></author><author><name sortKey="Oliveira, C" uniqKey="Oliveira C">C Oliveira</name></author><author><name sortKey="Campos, Psf" uniqKey="Campos P">PSF Campos</name></author><author><name sortKey="Azevedo, Ra" uniqKey="Azevedo R">RA Azevedo</name></author><author><name sortKey="Dos Santos, Jn" uniqKey="Dos Santos J">JN dos Santos</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Sadeghi, Em" uniqKey="Sadeghi E">EM Sadeghi</name></author><author><name sortKey="Ashrafi, Mh" uniqKey="Ashrafi M">MH Ashrafi</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Kahn, Ma" uniqKey="Kahn M">MA Kahn</name></author><author><name sortKey="Hinson, Rl" uniqKey="Hinson R">RL Hinson</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Hanks, Pa" uniqKey="Hanks P">PA Hanks</name></author><author><name sortKey="Williams, B" uniqKey="Williams B">B Williams,</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Cahuana, A" uniqKey="Cahuana A">A Cahuana</name></author><author><name sortKey="Gonzalez, Y" uniqKey="Gonzalez Y">Y González</name></author><author><name sortKey="Palma, C" uniqKey="Palma C">C Palma</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Gunduz, K" uniqKey="Gunduz K">K Gündüz</name></author><author><name sortKey="Zengin, Z" uniqKey="Zengin Z">Z Zengin</name></author><author><name sortKey="Celenk, P" uniqKey="Celenk P">P Çelenk</name></author><author><name sortKey="Ozden, B" uniqKey="Ozden B">B Özden</name></author><author><name sortKey="Kurt, M" uniqKey="Kurt M">M Kurt</name></author><author><name sortKey="Gunhan, O" uniqKey="Gunhan O">O Gunhan</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Lustmann, J" uniqKey="Lustmann J">J Lustmann</name></author><author><name sortKey="Klein, H" uniqKey="Klein H">H Klein</name></author><author><name sortKey="Ulmansky, M" uniqKey="Ulmansky M">M Ulmansky</name></author></analytic></biblStruct></listBibl></div1></back></TEI><affiliations><list><country><li>Japon</li></country></list><tree><country name="Japon"><noRegion><name sortKey="Matsuyama, Junko" sort="Matsuyama, Junko" uniqKey="Matsuyama J" first="Junko" last="Matsuyama">Junko Matsuyama</name></noRegion><name sortKey="Hayashi Sakai, Sachiko" sort="Hayashi Sakai, Sachiko" uniqKey="Hayashi Sakai S" first="Sachiko" last="Hayashi-Sakai">Sachiko Hayashi-Sakai</name><name sortKey="Iizawa, Futabako" sort="Iizawa, Futabako" uniqKey="Iizawa F" first="Futabako" last="Iizawa">Futabako Iizawa</name><name sortKey="Kinoshita Kawano, Shoko" sort="Kinoshita Kawano, Shoko" uniqKey="Kinoshita Kawano S" first="Shoko" last="Kinoshita-Kawano">Shoko Kinoshita-Kawano</name><name sortKey="Mitomi, Tomoe" sort="Mitomi, Tomoe" uniqKey="Mitomi T" first="Tomoe" last="Mitomi">Tomoe Mitomi</name><name sortKey="Sano, Tomiko" sort="Sano, Tomiko" uniqKey="Sano T" first="Tomiko" last="Sano">Tomiko Sano</name><name sortKey="Tanaka, Ray" sort="Tanaka, Ray" uniqKey="Tanaka R" first="Ray" last="Tanaka">Ray Tanaka</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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