Three-dimensional analysis of the internal structure of the mandibular condyle in dentulous and edentulous jaws using micro-CT.
Identifieur interne : 005610 ( Main/Exploration ); précédent : 005609; suivant : 005611Three-dimensional analysis of the internal structure of the mandibular condyle in dentulous and edentulous jaws using micro-CT.
Auteurs : Masanori Sugisaki [Japon] ; Hiroko Agematsu ; Satoru Matsunaga ; Hideki Saka ; Koji Sakiyama ; Yoshinobu IdeSource :
- Cranio : the journal of craniomandibular practice [ 0886-9634 ] ; 2009.
Descripteurs français
- KwdFr :
- Adulte, Adulte d'âge moyen, Cadavre, Condyle mandibulaire (anatomopathologie), Condyle mandibulaire (imagerie diagnostique), Densité osseuse (physiologie), Denture, Femelle, Humains, Imagerie tridimensionnelle (), Mandibule (anatomopathologie), Mandibule (imagerie diagnostique), Microtomographie aux rayons X (), Mâchoire édentée (anatomopathologie), Mâchoire édentée (imagerie diagnostique), Mâle, Sujet âgé, Sujet âgé de 80 ans ou plus, Traitement d'image par ordinateur ().
- MESH :
- anatomopathologie : Condyle mandibulaire, Mandibule, Mâchoire édentée.
- imagerie diagnostique : Condyle mandibulaire, Mandibule, Mâchoire édentée.
- physiologie : Densité osseuse.
- Adulte, Adulte d'âge moyen, Cadavre, Denture, Femelle, Humains, Imagerie tridimensionnelle, Microtomographie aux rayons X, Mâle, Sujet âgé, Sujet âgé de 80 ans ou plus, Traitement d'image par ordinateur.
English descriptors
- KwdEn :
- Adult, Aged, Aged, 80 and over, Bone Density (physiology), Cadaver, Dentition, Female, Humans, Image Processing, Computer-Assisted (methods), Imaging, Three-Dimensional (methods), Jaw, Edentulous (diagnostic imaging), Jaw, Edentulous (pathology), Male, Mandible (diagnostic imaging), Mandible (pathology), Mandibular Condyle (diagnostic imaging), Mandibular Condyle (pathology), Middle Aged, X-Ray Microtomography (methods).
- MESH :
- diagnostic imaging : Jaw, Edentulous, Mandible, Mandibular Condyle.
- methods : Image Processing, Computer-Assisted, Imaging, Three-Dimensional, X-Ray Microtomography.
- pathology : Jaw, Edentulous, Mandible, Mandibular Condyle.
- physiology : Bone Density.
- Adult, Aged, Aged, 80 and over, Cadaver, Dentition, Female, Humans, Male, Middle Aged.
Abstract
This study clarifies the internal structure of the mandibular condyle in dentulous and edentulous jaws; three-dimensional observation and morphological measurements were performed using micro-CT. The materials used in this study were 14 mandibular condyles each removed from the dentulous and edentulous cadavers. Internal structures of the mandibular condyle were morphologically analyzed in three anatomical planes. Additionally, morphometrical observations of the trabecular bone structure at five regions of interest and cortical bone thickness were performed. The mandibular condyle of dentulous jaws consisted predominantly of regularly aligned plate-shaped trabeculae. Conversely, edentulous jaws were predominantly irregularly aligned narrow rod-shaped trabeculae. The results of morphometrical analysis showed that trabecular separation (Tb.Sp) in the central region of the mandibular condyle most closely reflected the difference between dentulous and edentulous jaws. These results suggest that, in edentulous jaws, reduced masticatory function due to tooth loss affects the internal structures of mandibular condyle.
DOI: 10.1179/crn.2009.013
PubMed: 19455918
Affiliations:
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