Comparative analysis between mandibular positions in centric relation and maximum intercuspation by cone beam computed tomography (CONE-BEAM)
Identifieur interne : 005845 ( Main/Exploration ); précédent : 005844; suivant : 005846Comparative analysis between mandibular positions in centric relation and maximum intercuspation by cone beam computed tomography (CONE-BEAM)
Auteurs : Amanda De Freitas Ferreira [Brésil] ; João César Guimarães Henriques [Brésil] ; Guilherme Araújo Almeida [Brésil] ; Asbel Rodrigues Machado [Brésil] ; Naila Aparecida De Godoi Machado [Brésil] ; Alfredo Júlio Fernandes [Brésil]Source :
- Journal of Applied Oral Science [ 1678-7757 ] ; 2009.
Abstract
This research consisted of a quantitative assessment, and aimed to measure the possible discrepancies between the maxillomandibular positions for centric relation (CR) and maximum intercuspation (MI), using computed tomography volumetric cone beam (cone beam method). The sample of the study consisted of 10 asymptomatic young adult patients divided into two types of standard occlusion: normal occlusion and Angle Class I occlusion. In order to obtain the centric relation, a JIG device and mandible manipulation were used to deprogram the habitual conditions of the jaw. The evaluations were conducted in both frontal and lateral tomographic images, showing the condyle/articular fossa relation. The images were processed in the software included in the NewTom 3G device (QR NNT software version 2.00), and 8 tomographic images were obtained per patient, four laterally and four frontally exhibiting the TMA’s (in CR and MI, on both sides, right and left). By means of tools included in another software, linear and angular measurements were performed and statistically analyzed by student t test. According to the methodology and the analysis performed in asymptomatic patients, it was not possible to detect statistically significant differences between the positions of centric relation and maximum intercuspation. However, the resources of cone beam tomography are of extreme relevance to the completion of further studies that use heterogeneous groups of samples in order to compare the results.
Url:
DOI: 10.1590/S1678-77572009000700006
PubMed: 21499652
PubMed Central: 5467372
Affiliations:
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type="wicri:Area/Main/Exploration">005845</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Comparative analysis between mandibular positions in centric relation and maximum intercuspation by cone beam computed tomography (CONE-BEAM)</title><author><name sortKey="Ferreira, Amanda De Freitas" sort="Ferreira, Amanda De Freitas" uniqKey="Ferreira A" first="Amanda De Freitas" last="Ferreira">Amanda De Freitas Ferreira</name><affiliation wicri:level="2"><nlm:aff id="aff1">Undergraduate student, Dental School, Federal University of Uberlândia, Uberlândia, MG, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea>Undergraduate student, Dental School, Federal University of Uberlândia, Uberlândia, MG</wicri:regionArea><placeName><region type="state">Minas Gerais</region></placeName></affiliation></author><author><name sortKey="Henriques, Joao Cesar Guimaraes" sort="Henriques, Joao Cesar Guimaraes" uniqKey="Henriques J" first="João César Guimarães" last="Henriques">João César Guimarães Henriques</name><affiliation wicri:level="2"><nlm:aff id="aff2">MSc, Dental School, Federal University of Uberlândia, Uberlândia, MG, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea>MSc, Dental School, Federal University of Uberlândia, Uberlândia, MG</wicri:regionArea><placeName><region type="state">Minas Gerais</region></placeName></affiliation></author><author><name sortKey="Almeida, Guilherme Araujo" sort="Almeida, Guilherme Araujo" uniqKey="Almeida G" first="Guilherme Araújo" last="Almeida">Guilherme Araújo Almeida</name><affiliation wicri:level="2"><nlm:aff id="aff3">PhD, Professor, Dental School, Federal University of Uberlândia, Uberlândia, MG, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea>PhD, Professor, Dental School, Federal University of Uberlândia, Uberlândia, MG</wicri:regionArea><placeName><region type="state">Minas Gerais</region></placeName></affiliation></author><author><name sortKey="Machado, Asbel Rodrigues" sort="Machado, Asbel Rodrigues" uniqKey="Machado A" first="Asbel Rodrigues" last="Machado">Asbel Rodrigues Machado</name><affiliation wicri:level="2"><nlm:aff id="aff4">Graduate student, Dental School, Federal University of Alfenas, Alfenas, MG, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea>Graduate student, Dental School, Federal University of Alfenas, Alfenas, MG</wicri:regionArea><placeName><region type="state">Minas Gerais</region></placeName></affiliation></author><author><name sortKey="Machado, Naila Aparecida De Godoi" sort="Machado, Naila Aparecida De Godoi" uniqKey="Machado N" first="Naila Aparecida De Godoi" last="Machado">Naila Aparecida De Godoi Machado</name><affiliation wicri:level="2"><nlm:aff id="aff5">Graduate student, Dental School, Federal University of Uberlândia, Uberlândia, MG, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea>Graduate student, Dental School, Federal University of Uberlândia, Uberlândia, MG</wicri:regionArea><placeName><region type="state">Minas Gerais</region></placeName></affiliation></author><author><name sortKey="Fernandes, Alfredo Julio" sort="Fernandes, Alfredo Julio" uniqKey="Fernandes A" first="Alfredo Júlio" last="Fernandes">Alfredo Júlio Fernandes</name><affiliation wicri:level="2"><nlm:aff id="aff6">PhD, Professor, Dental School, Federal University of Uberlândia, Uberlândia, MG, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea>PhD, Professor, Dental School, Federal University of Uberlândia, Uberlândia, MG</wicri:regionArea><placeName><region type="state">Minas Gerais</region></placeName></affiliation></author></analytic><series><title level="j">Journal of Applied Oral Science</title><idno type="ISSN">1678-7757</idno><idno type="eISSN">1678-7765</idno><imprint><date when="2009">2009</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><title>ABSTRACT</title><p>This research consisted of a quantitative assessment, and aimed to measure the possible discrepancies between the maxillomandibular positions for centric relation (CR) and maximum intercuspation (MI), using computed tomography volumetric cone beam (cone beam method). The sample of the study consisted of 10 asymptomatic young adult patients divided into two types of standard occlusion: normal occlusion and Angle Class I occlusion. In order to obtain the centric relation, a JIG device and mandible manipulation were used to deprogram the habitual conditions of the jaw. The evaluations were conducted in both frontal and lateral tomographic images, showing the condyle/articular fossa relation. The images were processed in the software included in the NewTom 3G device (QR NNT software version 2.00), and 8 tomographic images were obtained per patient, four laterally and four frontally exhibiting the TMA’s (in CR and MI, on both sides, right and left). By means of tools included in another software, linear and angular measurements were performed and statistically analyzed by student t test. According to the methodology and the analysis performed in asymptomatic patients, it was not possible to detect statistically significant differences between the positions of centric relation and maximum intercuspation. However, the resources of cone beam tomography are of extreme relevance to the completion of further studies that use heterogeneous groups of samples in order to compare the results.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct></biblStruct><biblStruct><analytic><author><name sortKey="Alexander, Sr" uniqKey="Alexander S">SR Alexander</name></author><author><name sortKey="Moore, Rn" uniqKey="Moore R">RN Moore</name></author><author><name sortKey="Dubois, Lm" uniqKey="Dubois L">LM DuBois</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Andrews, Lf" uniqKey="Andrews L">LF Andrews</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Baker, Ps" uniqKey="Baker P">PS Baker</name></author><author><name sortKey="Parker, Mh" uniqKey="Parker M">MH Parker</name></author><author><name sortKey="Ivanhoe, Jr" uniqKey="Ivanhoe J">JR Ivanhoe</name></author><author><name sortKey="Gardner, Fm" uniqKey="Gardner 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Hirsch</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Shildkraut, M" uniqKey="Shildkraut M">M Shildkraut</name></author><author><name sortKey="Wood, Dp" uniqKey="Wood D">DP Wood</name></author><author><name sortKey="Hunter, Ws" uniqKey="Hunter W">WS Hunter</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Tsiklakis, K" uniqKey="Tsiklakis K">K Tsiklakis</name></author><author><name sortKey="Syriopoulos, K" uniqKey="Syriopoulos K">K Syriopoulos</name></author><author><name sortKey="Stamatakis, Hc" uniqKey="Stamatakis H">HC Stamatakis</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Wilson, J" uniqKey="Wilson J">J Wilson</name></author><author><name sortKey="Nairn, Ri" uniqKey="Nairn R">RI Nairn</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Williamson, Eh" uniqKey="Williamson E">EH Williamson</name></author><author><name sortKey="Caves, Sa" 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Almeida</name><name sortKey="Fernandes, Alfredo Julio" sort="Fernandes, Alfredo Julio" uniqKey="Fernandes A" first="Alfredo Júlio" last="Fernandes">Alfredo Júlio Fernandes</name><name sortKey="Henriques, Joao Cesar Guimaraes" sort="Henriques, Joao Cesar Guimaraes" uniqKey="Henriques J" first="João César Guimarães" last="Henriques">João César Guimarães Henriques</name><name sortKey="Machado, Asbel Rodrigues" sort="Machado, Asbel Rodrigues" uniqKey="Machado A" first="Asbel Rodrigues" last="Machado">Asbel Rodrigues Machado</name><name sortKey="Machado, Naila Aparecida De Godoi" sort="Machado, Naila Aparecida De Godoi" uniqKey="Machado N" first="Naila Aparecida De Godoi" last="Machado">Naila Aparecida De Godoi Machado</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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