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Use of 4 immediately loaded zygomatic fixtures for retreatment of atrophic edentulous maxilla after complications of maxillary reconstruction.

Identifieur interne : 004B15 ( Main/Exploration ); précédent : 004B14; suivant : 004B16

Use of 4 immediately loaded zygomatic fixtures for retreatment of atrophic edentulous maxilla after complications of maxillary reconstruction.

Auteurs : Marcos Rikio Kuabara [Brésil] ; Edilson José Ferreira ; Jéssica Lemos Gulinelli ; Sônia Regina Panzarini

Source :

RBID : pubmed:20485054

Descripteurs français

English descriptors

Abstract

This article reports the 20-month clinical outcome of the use of 4 zygomatic implants with immediate occlusal loading and reverse planning for the retreatment of atrophic edentulous maxilla after failed rehabilitation with autogenous bone graft reconstruction and maxillary implants. The intraoral clinical examination revealed mispositioned and loosened implants underneath a maxillary complete denture. The panoramic radiograph showed 6 maxillary implants. One implant was displaced into the right maxillary sinus, and the implant anchored in the region of tooth 21 was fractured. The other implants presented peri-implant bone loss. The implants anchored in the regions of teeth 21 to 23 and 11 to 13 were first removed. After 2 months, the reverse planning started with placement of 4 zygomatic fixtures, removal of the implants migrated into the sinus cavity and anchored in the region of tooth 17, and installation of a fixed denture. After 20 months of follow-up, no painful symptoms, peri-implant inflammation or infection, implant instability, or bone resorption was observed. The outcomes of this case confirm that the zygoma can offer a predictable anchorage and support function for a fixed denture in severely resorbed maxillae.

DOI: 10.1097/SCS.0b013e3181d809c3
PubMed: 20485054


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Le document en format XML

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<term>Adult</term>
<term>Alveolar Ridge Augmentation</term>
<term>Atrophy</term>
<term>Bone Resorption</term>
<term>Bone Transplantation</term>
<term>Dental Abutments</term>
<term>Dental Implants</term>
<term>Dental Prosthesis, Implant-Supported</term>
<term>Dental Restoration Failure</term>
<term>Denture Retention</term>
<term>Denture, Complete, Upper</term>
<term>Denture, Overlay</term>
<term>Humans</term>
<term>Jaw, Edentulous (diagnostic imaging)</term>
<term>Jaw, Edentulous (rehabilitation)</term>
<term>Jaw, Edentulous (surgery)</term>
<term>Male</term>
<term>Maxilla (diagnostic imaging)</term>
<term>Maxilla (surgery)</term>
<term>Radiography, Panoramic</term>
<term>Retreatment</term>
<term>Zygoma (diagnostic imaging)</term>
<term>Zygoma (surgery)</term>
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<term>Adulte</term>
<term>Atrophie</term>
<term>Humains</term>
<term>Implants dentaires</term>
<term>Maxillaire ()</term>
<term>Maxillaire (imagerie diagnostique)</term>
<term>Mâchoire édentée ()</term>
<term>Mâchoire édentée (imagerie diagnostique)</term>
<term>Mâchoire édentée (rééducation et réadaptation)</term>
<term>Mâle</term>
<term>Os zygomatique ()</term>
<term>Os zygomatique (imagerie diagnostique)</term>
<term>Overdenture</term>
<term>Piliers dentaires</term>
<term>Prothèse dentaire complète supérieure</term>
<term>Prothèse dentaire implanto-portée</term>
<term>Radiographie panoramique</term>
<term>Reconstruction de crête alvéolaire</term>
<term>Reprise du traitement</term>
<term>Résorption osseuse</term>
<term>Rétention d'appareil de prothèse dentaire</term>
<term>Transplantation osseuse</term>
<term>Échec de restauration dentaire</term>
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<term>Dental Implants</term>
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<term>Jaw, Edentulous</term>
<term>Maxilla</term>
<term>Zygoma</term>
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<term>Mâchoire édentée</term>
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<term>Jaw, Edentulous</term>
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<term>Mâchoire édentée</term>
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<term>Jaw, Edentulous</term>
<term>Maxilla</term>
<term>Zygoma</term>
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<term>Adult</term>
<term>Alveolar Ridge Augmentation</term>
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<term>Bone Resorption</term>
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<term>Dental Prosthesis, Implant-Supported</term>
<term>Dental Restoration Failure</term>
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<term>Male</term>
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<term>Humains</term>
<term>Implants dentaires</term>
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<term>Mâchoire édentée</term>
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<term>Piliers dentaires</term>
<term>Prothèse dentaire complète supérieure</term>
<term>Prothèse dentaire implanto-portée</term>
<term>Radiographie panoramique</term>
<term>Reconstruction de crête alvéolaire</term>
<term>Reprise du traitement</term>
<term>Résorption osseuse</term>
<term>Rétention d'appareil de prothèse dentaire</term>
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<front>
<div type="abstract" xml:lang="en">This article reports the 20-month clinical outcome of the use of 4 zygomatic implants with immediate occlusal loading and reverse planning for the retreatment of atrophic edentulous maxilla after failed rehabilitation with autogenous bone graft reconstruction and maxillary implants. The intraoral clinical examination revealed mispositioned and loosened implants underneath a maxillary complete denture. The panoramic radiograph showed 6 maxillary implants. One implant was displaced into the right maxillary sinus, and the implant anchored in the region of tooth 21 was fractured. The other implants presented peri-implant bone loss. The implants anchored in the regions of teeth 21 to 23 and 11 to 13 were first removed. After 2 months, the reverse planning started with placement of 4 zygomatic fixtures, removal of the implants migrated into the sinus cavity and anchored in the region of tooth 17, and installation of a fixed denture. After 20 months of follow-up, no painful symptoms, peri-implant inflammation or infection, implant instability, or bone resorption was observed. The outcomes of this case confirm that the zygoma can offer a predictable anchorage and support function for a fixed denture in severely resorbed maxillae.</div>
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