MicroCT-based evaluation of the trabecular bone quality of different implant anchorage sites for masticatory rehabilitation of the maxilla.
Identifieur interne : 000401 ( PubMed/Corpus ); précédent : 000400; suivant : 000402MicroCT-based evaluation of the trabecular bone quality of different implant anchorage sites for masticatory rehabilitation of the maxilla.
Auteurs : Kristina Bertl ; Patrick Heimel ; Michaela Rökl-Riegler ; Lena Hirtler ; Christian Ulm ; Werner ZechnerSource :
- Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery [ 1878-4119 ] ; 2015.
English descriptors
- KwdEn :
- Atrophy, Bone Density (physiology), Cadaver, Cancellous Bone (diagnostic imaging), Dental Implants, Female, Humans, Jaw, Edentulous (diagnostic imaging), Jaw, Edentulous (surgery), Male, Maxilla (diagnostic imaging), Organ Size, Sex Factors, X-Ray Microtomography (methods), Zygoma (diagnostic imaging), Zygoma (surgery).
- MESH :
- chemical : Dental Implants.
- diagnostic imaging : Cancellous Bone, Jaw, Edentulous, Maxilla, Zygoma.
- methods : X-Ray Microtomography.
- physiology : Bone Density.
- surgery : Jaw, Edentulous, Zygoma.
- Atrophy, Cadaver, Female, Humans, Male, Organ Size, Sex Factors.
Abstract
In the severely atrophied maxilla, implant anchorage in the zygomatic bone is considered a viable alternative to conventional dental implants with preceding bone augmentation procedures. The present microCT-based study compared the trabecular bone quality of the maxilla and zygomatic bone. MicroCT scanning was conducted in 12 halves of cadaver heads (5 male, 7 female) with edentulous, atrophied maxillae. Relevant trabecular bone quality parameters were determined in the anterior and posterior maxilla and in the zygomatic bone and compared by region and sex. Any difference in mean values between the anterior maxilla and the zygomatic bone was insignificant. Comparison of both with the posterior maxilla presented significantly higher values for bone volume fraction, surface density, and trabecular thickness and number, and significantly lower values for specific bone surface, structure model index, and trabecular separation. A significant sex-specific difference was not detected. The present microCT-based analysis is, to the best of our knowledge, the first intra-individual comparison of different implant anchorage sites for masticatory rehabilitation of the maxilla. The trabecular compartment of the zygomatic bone offered bone quality and, thus, an implant bed comparable with those of the anterior maxilla, and both were superior to the posterior maxilla.
DOI: 10.1016/j.jcms.2015.04.008
PubMed: 26027862
Links to Exploration step
pubmed:26027862Le document en format XML
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<affiliation><nlm:affiliation>Division of Oral Surgery, University Clinic of Dentistry, Medical University of Vienna (Head: Prof. Christian Ulm, DMD, MD), Sensengasse 2a, A-1090 Vienna, Austria; Department of Periodontology, Faculty of Odontology, University of Malmö, Sweden. Electronic address: kristina.bertl@meduniwien.ac.at.</nlm:affiliation>
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<affiliation><nlm:affiliation>Karl Donath Laboratory for Hard Tissue and Biomaterial Research, Division of Oral Surgery, Medical University of Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria; Ludwig Boltzmann Institute for Clinical and Experimental Traumatology, Vienna, Austria.</nlm:affiliation>
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<author><name sortKey="Rokl Riegler, Michaela" sort="Rokl Riegler, Michaela" uniqKey="Rokl Riegler M" first="Michaela" last="Rökl-Riegler">Michaela Rökl-Riegler</name>
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<author><name sortKey="Hirtler, Lena" sort="Hirtler, Lena" uniqKey="Hirtler L" first="Lena" last="Hirtler">Lena Hirtler</name>
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<author><name sortKey="Rokl Riegler, Michaela" sort="Rokl Riegler, Michaela" uniqKey="Rokl Riegler M" first="Michaela" last="Rökl-Riegler">Michaela Rökl-Riegler</name>
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<term>Dental Implants</term>
<term>Female</term>
<term>Humans</term>
<term>Jaw, Edentulous (diagnostic imaging)</term>
<term>Jaw, Edentulous (surgery)</term>
<term>Male</term>
<term>Maxilla (diagnostic imaging)</term>
<term>Organ Size</term>
<term>Sex Factors</term>
<term>X-Ray Microtomography (methods)</term>
<term>Zygoma (diagnostic imaging)</term>
<term>Zygoma (surgery)</term>
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<keywords scheme="MESH" type="chemical" xml:lang="en"><term>Dental Implants</term>
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<term>Jaw, Edentulous</term>
<term>Maxilla</term>
<term>Zygoma</term>
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<keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>X-Ray Microtomography</term>
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<front><div type="abstract" xml:lang="en">In the severely atrophied maxilla, implant anchorage in the zygomatic bone is considered a viable alternative to conventional dental implants with preceding bone augmentation procedures. The present microCT-based study compared the trabecular bone quality of the maxilla and zygomatic bone. MicroCT scanning was conducted in 12 halves of cadaver heads (5 male, 7 female) with edentulous, atrophied maxillae. Relevant trabecular bone quality parameters were determined in the anterior and posterior maxilla and in the zygomatic bone and compared by region and sex. Any difference in mean values between the anterior maxilla and the zygomatic bone was insignificant. Comparison of both with the posterior maxilla presented significantly higher values for bone volume fraction, surface density, and trabecular thickness and number, and significantly lower values for specific bone surface, structure model index, and trabecular separation. A significant sex-specific difference was not detected. The present microCT-based analysis is, to the best of our knowledge, the first intra-individual comparison of different implant anchorage sites for masticatory rehabilitation of the maxilla. The trabecular compartment of the zygomatic bone offered bone quality and, thus, an implant bed comparable with those of the anterior maxilla, and both were superior to the posterior maxilla.</div>
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<Abstract><AbstractText>In the severely atrophied maxilla, implant anchorage in the zygomatic bone is considered a viable alternative to conventional dental implants with preceding bone augmentation procedures. The present microCT-based study compared the trabecular bone quality of the maxilla and zygomatic bone. MicroCT scanning was conducted in 12 halves of cadaver heads (5 male, 7 female) with edentulous, atrophied maxillae. Relevant trabecular bone quality parameters were determined in the anterior and posterior maxilla and in the zygomatic bone and compared by region and sex. Any difference in mean values between the anterior maxilla and the zygomatic bone was insignificant. Comparison of both with the posterior maxilla presented significantly higher values for bone volume fraction, surface density, and trabecular thickness and number, and significantly lower values for specific bone surface, structure model index, and trabecular separation. A significant sex-specific difference was not detected. The present microCT-based analysis is, to the best of our knowledge, the first intra-individual comparison of different implant anchorage sites for masticatory rehabilitation of the maxilla. The trabecular compartment of the zygomatic bone offered bone quality and, thus, an implant bed comparable with those of the anterior maxilla, and both were superior to the posterior maxilla.</AbstractText>
<CopyrightInformation>Copyright © 2015 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.</CopyrightInformation>
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