Zygoma fixture in the management of advanced atrophy of the maxilla: technique and long-term results.
Identifieur interne : 001368 ( Ncbi/Checkpoint ); précédent : 001367; suivant : 001369Zygoma fixture in the management of advanced atrophy of the maxilla: technique and long-term results.
Auteurs : Per-Ingvar Br Nemark [Suède] ; Kerstin Gröndahl ; Lars-Olof Ohrnell ; Peter Nilsson ; Björn Petruson ; Barbro Svensson ; Per Engstrand ; Ulf NannmarkSource :
- Scandinavian journal of plastic and reconstructive surgery and hand surgery [ 0284-4311 ] ; 2004.
Descripteurs français
- KwdFr :
- MESH :
English descriptors
- KwdEn :
- MESH :
- chemical : Dental Implants.
- diagnostic imaging : Jaw, Edentulous.
- methods : Dental Implantation, Endosseous.
- surgery : Jaw, Edentulous, Maxilla, Zygoma.
- Bone Transplantation, Dental Prosthesis Design, Humans, Radiography, Treatment Outcome.
Abstract
Despite refinements in surgical technique, including bone grafting and sophisticated prosthetic reconstructions, there are limitations to what can be achieved with bone-anchored fixed prostheses in patients with advanced atrophy of the maxillae. A new approach was suggested by a long-term study on onlay bone grafting and simultaneous placement of a fixture based on a new design: the zygoma fixture, and the aim of this study was to assess its potential. Twenty-eight consecutive patients with severely resorbed edentulous maxillae were included, 13 of whom had previously had multiple fixture surgery in the jawbone that had failed. A total of 52 zygoma fixtures and 106 conventional fixtures were installed. Bone grafting was deemed necessary in 17 patients. All patients have been followed for at least five years, and nine for up to 10 years. All patients were followed up with clinical and radiographic examinations, and in some cases rhinoscopy and sinoscopy as well. Three zygoma fixtures failed; two at the time of connection of the abutment and the third after six years. Of the conventional fixtures placed at the time of the zygoma fixture, 29 (27%) were lost. The overall prosthetic rehabilitation rate was 96% after at least five years of function. There were no signs of inflammatory reaction in the surrounding antral mucosa. Four patients with recurrent sinusitis recovered after inferior meatal antrostomy. To conclude, the zygoma fixture seems to be a valuable addition to our repertoire in the management of the compromised maxilla.
PubMed: 15202664
Affiliations:
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pubmed:15202664Le document en format XML
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<term>Dental Implantation, Endosseous (methods)</term>
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<term>Dental Prosthesis Design</term>
<term>Humans</term>
<term>Jaw, Edentulous (diagnostic imaging)</term>
<term>Jaw, Edentulous (surgery)</term>
<term>Maxilla (surgery)</term>
<term>Radiography</term>
<term>Treatment Outcome</term>
<term>Zygoma (surgery)</term>
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<keywords scheme="KwdFr" xml:lang="fr"><term>Conception de prothèse dentaire</term>
<term>Humains</term>
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<term>Maxillaire ()</term>
<term>Mâchoire édentée ()</term>
<term>Mâchoire édentée (imagerie diagnostique)</term>
<term>Os zygomatique ()</term>
<term>Pose d'implant dentaire endo-osseux ()</term>
<term>Radiographie</term>
<term>Résultat thérapeutique</term>
<term>Transplantation osseuse</term>
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<keywords scheme="MESH" qualifier="imagerie diagnostique" xml:lang="fr"><term>Mâchoire édentée</term>
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<keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Dental Implantation, Endosseous</term>
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<keywords scheme="MESH" qualifier="surgery" xml:lang="en"><term>Jaw, Edentulous</term>
<term>Maxilla</term>
<term>Zygoma</term>
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<term>Dental Prosthesis Design</term>
<term>Humans</term>
<term>Radiography</term>
<term>Treatment Outcome</term>
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<term>Humains</term>
<term>Implants dentaires</term>
<term>Maxillaire</term>
<term>Mâchoire édentée</term>
<term>Os zygomatique</term>
<term>Pose d'implant dentaire endo-osseux</term>
<term>Radiographie</term>
<term>Résultat thérapeutique</term>
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<front><div type="abstract" xml:lang="en">Despite refinements in surgical technique, including bone grafting and sophisticated prosthetic reconstructions, there are limitations to what can be achieved with bone-anchored fixed prostheses in patients with advanced atrophy of the maxillae. A new approach was suggested by a long-term study on onlay bone grafting and simultaneous placement of a fixture based on a new design: the zygoma fixture, and the aim of this study was to assess its potential. Twenty-eight consecutive patients with severely resorbed edentulous maxillae were included, 13 of whom had previously had multiple fixture surgery in the jawbone that had failed. A total of 52 zygoma fixtures and 106 conventional fixtures were installed. Bone grafting was deemed necessary in 17 patients. All patients have been followed for at least five years, and nine for up to 10 years. All patients were followed up with clinical and radiographic examinations, and in some cases rhinoscopy and sinoscopy as well. Three zygoma fixtures failed; two at the time of connection of the abutment and the third after six years. Of the conventional fixtures placed at the time of the zygoma fixture, 29 (27%) were lost. The overall prosthetic rehabilitation rate was 96% after at least five years of function. There were no signs of inflammatory reaction in the surrounding antral mucosa. Four patients with recurrent sinusitis recovered after inferior meatal antrostomy. To conclude, the zygoma fixture seems to be a valuable addition to our repertoire in the management of the compromised maxilla.</div>
</front>
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<name sortKey="Nannmark, Ulf" sort="Nannmark, Ulf" uniqKey="Nannmark U" first="Ulf" last="Nannmark">Ulf Nannmark</name>
<name sortKey="Nilsson, Peter" sort="Nilsson, Peter" uniqKey="Nilsson P" first="Peter" last="Nilsson">Peter Nilsson</name>
<name sortKey="Ohrnell, Lars Olof" sort="Ohrnell, Lars Olof" uniqKey="Ohrnell L" first="Lars-Olof" last="Ohrnell">Lars-Olof Ohrnell</name>
<name sortKey="Petruson, Bjorn" sort="Petruson, Bjorn" uniqKey="Petruson B" first="Björn" last="Petruson">Björn Petruson</name>
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