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Clinical evaluation of implants retaining edentulous maxillary obturator prostheses

Identifieur interne : 009E74 ( Main/Exploration ); précédent : 009E73; suivant : 009E75

Clinical evaluation of implants retaining edentulous maxillary obturator prostheses

Auteurs : E. D. Roumanas ; R. D. Nishimura ; B. K. Davis ; J. Beumer Iii

Source :

RBID : ISTEX:195EF19E5EE3A711D11D0F6B16DF880EA141027D

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English descriptors

Abstract

Abstract: Purpose. Fabricating a maxillary obturator can be challenging. Placement of implants can have a dramatic effect on the stability and retention of the prosthesis in the edentulous maxillectomy patient. This article provides clinical retrospective analysis of osseointegrated implants used to retain maxillary obturators. Material and Methods. Patient charts and radiographs were reviewed to determine implant status, bone loss patterns, and implant survival rates. Twenty-six patients were included with 102 implants placed, from which there were 19 intact withdrawals (implants lost because of recurrent disease or patient death), five implants with unknown status, 24 implant failures, and 54 functional implants. Results. The overall survival rate for implants in this patient population was 69.2%. The percent implant survival rate was 63.6% for the irradiated group (67.0% before radiation, 50.0% after radiation) and 82.6% for the nonirradiated group. Implants located in anterior sites demonstrated statistically significant differences in annual bone height changes compared with posterior sites. Conclusions. The majority of implant failures (18 of 24) occurred either at stage II surgery or before loading. Implants placed during tumor resection, implants placed within the maxillectomy defects, and implants receiving postoperative radiation demonstrated low survival rates. (J Prosthet Dent 1997;77:184-90.)

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DOI: 10.1016/S0022-3913(97)70233-6


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<term>Adequate alveolar bone</term>
<term>Adult</term>
<term>Aged</term>
<term>Aged, 80 and over</term>
<term>Anterior</term>
<term>Anterior implants</term>
<term>Ball attachment system</term>
<term>Bone graft</term>
<term>Bone height</term>
<term>Bone loss</term>
<term>Case report</term>
<term>Clinical mobility</term>
<term>Clinical report</term>
<term>Defect</term>
<term>Dentistry</term>
<term>Differential pattern</term>
<term>Dramatic effect</term>
<term>Edentulous maxillary resection patients</term>
<term>Edentulous maxillectomy patient</term>
<term>Female</term>
<term>Final restoration</term>
<term>First year</term>
<term>Frequency distributions</term>
<term>Functional implants</term>
<term>Graft</term>
<term>Graft procedure</term>
<term>Graft procedures</term>
<term>Humans</term>
<term>Immediate implant placement</term>
<term>Immediate placement</term>
<term>Implant</term>
<term>Implant failures</term>
<term>Implant location</term>
<term>Implant placement</term>
<term>Implant site</term>
<term>Implant sites</term>
<term>Implant status</term>
<term>Implant surgery</term>
<term>Implant survival rate</term>
<term>Implant survival rates</term>
<term>Implant threads</term>
<term>Intact withdrawals</term>
<term>Jaw, Edentulous (diagnostic imaging)</term>
<term>Jaw, Edentulous (rehabilitation)</term>
<term>Limited accessibility</term>
<term>Male</term>
<term>Many years</term>
<term>Maxilla (surgery)</term>
<term>Maxillary</term>
<term>Maxillary Neoplasms (rehabilitation)</term>
<term>Maxillary Neoplasms (surgery)</term>
<term>Maxillary obturator</term>
<term>Maxillary obturators</term>
<term>Maxillary resection patients</term>
<term>Maxillectomy</term>
<term>Maxillectomy defect</term>
<term>Maxillectomy defects</term>
<term>Maxillectomy patients</term>
<term>Maxillofac</term>
<term>Maxillofacial Prosthesis</term>
<term>Maxillofacial prosthetics</term>
<term>Medical center</term>
<term>Mesial</term>
<term>Middle Aged</term>
<term>Nonirradiated group</term>
<term>Number2 roumanas</term>
<term>Obturator</term>
<term>Oral implants</term>
<term>Oral maxillofac implants</term>
<term>Oral maxillofac surg</term>
<term>Osseointegrated implants</term>
<term>Osseointegration</term>
<term>Overall survival rate</term>
<term>Palatal Obturators</term>
<term>Patient charts</term>
<term>Patient death</term>
<term>Patient population</term>
<term>Posterior alveolus</term>
<term>Posterior implants</term>
<term>Posterior sites</term>
<term>Prostheses and Implants</term>
<term>Prosthesis</term>
<term>Prosthet dent</term>
<term>Prosthetic</term>
<term>Prosthetic dentistry</term>
<term>Pterygoid plates</term>
<term>Radiation status</term>
<term>Radiograph</term>
<term>Radiography</term>
<term>Recurrence</term>
<term>Removable prosthodontics</term>
<term>Resection</term>
<term>Retentive elements</term>
<term>Retrospective Studies</term>
<term>Retrospective analysis</term>
<term>Roumanas</term>
<term>Severe bone loss</term>
<term>Sinus</term>
<term>Sphenoid Bone (surgery)</term>
<term>Surgical</term>
<term>Surgical defect</term>
<term>Surgical defect type</term>
<term>Surgical resection</term>
<term>Survival rates</term>
<term>Tissue bars</term>
<term>Titanium implants</term>
<term>Treatment Outcome</term>
<term>Tumor resection</term>
<term>Vertical bone loss</term>
<term>Zygoma (surgery)</term>
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<term>Adulte</term>
<term>Adulte d'âge moyen</term>
<term>Femelle</term>
<term>Humains</term>
<term>Maxillaire ()</term>
<term>Mâchoire édentée (imagerie diagnostique)</term>
<term>Mâchoire édentée (rééducation et réadaptation)</term>
<term>Mâle</term>
<term>Obturateurs palatins</term>
<term>Os sphénoïde ()</term>
<term>Os zygomatique ()</term>
<term>Ostéo-intégration</term>
<term>Prothèse maxillofaciale</term>
<term>Prothèses et implants</term>
<term>Radiographie</term>
<term>Résultat thérapeutique</term>
<term>Sujet âgé</term>
<term>Sujet âgé de 80 ans ou plus</term>
<term>Tumeurs du maxillaire supérieur ()</term>
<term>Tumeurs du maxillaire supérieur (rééducation et réadaptation)</term>
<term>Études rétrospectives</term>
</keywords>
<keywords scheme="MESH" qualifier="diagnostic imaging" xml:lang="en">
<term>Jaw, Edentulous</term>
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<keywords scheme="MESH" qualifier="imagerie diagnostique" xml:lang="fr">
<term>Mâchoire édentée</term>
</keywords>
<keywords scheme="MESH" qualifier="rehabilitation" xml:lang="en">
<term>Jaw, Edentulous</term>
<term>Maxillary Neoplasms</term>
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<keywords scheme="MESH" qualifier="rééducation et réadaptation" xml:lang="fr">
<term>Mâchoire édentée</term>
<term>Tumeurs du maxillaire supérieur</term>
</keywords>
<keywords scheme="MESH" qualifier="surgery" xml:lang="en">
<term>Maxilla</term>
<term>Maxillary Neoplasms</term>
<term>Sphenoid Bone</term>
<term>Zygoma</term>
</keywords>
<keywords scheme="Teeft" xml:lang="en">
<term>Adequate alveolar bone</term>
<term>Adult</term>
<term>Aged</term>
<term>Aged, 80 and over</term>
<term>Anterior</term>
<term>Anterior implants</term>
<term>Ball attachment system</term>
<term>Bone graft</term>
<term>Bone height</term>
<term>Bone loss</term>
<term>Case report</term>
<term>Clinical mobility</term>
<term>Clinical report</term>
<term>Defect</term>
<term>Dentistry</term>
<term>Differential pattern</term>
<term>Dramatic effect</term>
<term>Edentulous maxillary resection patients</term>
<term>Edentulous maxillectomy patient</term>
<term>Female</term>
<term>Final restoration</term>
<term>First year</term>
<term>Frequency distributions</term>
<term>Functional implants</term>
<term>Graft</term>
<term>Graft procedure</term>
<term>Graft procedures</term>
<term>Humans</term>
<term>Immediate implant placement</term>
<term>Immediate placement</term>
<term>Implant</term>
<term>Implant failures</term>
<term>Implant location</term>
<term>Implant placement</term>
<term>Implant site</term>
<term>Implant sites</term>
<term>Implant status</term>
<term>Implant surgery</term>
<term>Implant survival rate</term>
<term>Implant survival rates</term>
<term>Implant threads</term>
<term>Intact withdrawals</term>
<term>Limited accessibility</term>
<term>Male</term>
<term>Many years</term>
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<term>Maxillary obturator</term>
<term>Maxillary obturators</term>
<term>Maxillary resection patients</term>
<term>Maxillectomy</term>
<term>Maxillectomy defect</term>
<term>Maxillectomy defects</term>
<term>Maxillectomy patients</term>
<term>Maxillofac</term>
<term>Maxillofacial Prosthesis</term>
<term>Maxillofacial prosthetics</term>
<term>Medical center</term>
<term>Mesial</term>
<term>Middle Aged</term>
<term>Nonirradiated group</term>
<term>Number2 roumanas</term>
<term>Obturator</term>
<term>Oral implants</term>
<term>Oral maxillofac implants</term>
<term>Oral maxillofac surg</term>
<term>Osseointegrated implants</term>
<term>Osseointegration</term>
<term>Overall survival rate</term>
<term>Palatal Obturators</term>
<term>Patient charts</term>
<term>Patient death</term>
<term>Patient population</term>
<term>Posterior alveolus</term>
<term>Posterior implants</term>
<term>Posterior sites</term>
<term>Prostheses and Implants</term>
<term>Prosthesis</term>
<term>Prosthet dent</term>
<term>Prosthetic</term>
<term>Prosthetic dentistry</term>
<term>Pterygoid plates</term>
<term>Radiation status</term>
<term>Radiograph</term>
<term>Radiography</term>
<term>Recurrence</term>
<term>Removable prosthodontics</term>
<term>Resection</term>
<term>Retentive elements</term>
<term>Retrospective Studies</term>
<term>Retrospective analysis</term>
<term>Roumanas</term>
<term>Severe bone loss</term>
<term>Sinus</term>
<term>Surgical</term>
<term>Surgical defect</term>
<term>Surgical defect type</term>
<term>Surgical resection</term>
<term>Survival rates</term>
<term>Tissue bars</term>
<term>Titanium implants</term>
<term>Treatment Outcome</term>
<term>Tumor resection</term>
<term>Vertical bone loss</term>
</keywords>
<keywords scheme="MESH" xml:lang="fr">
<term>Adulte</term>
<term>Adulte d'âge moyen</term>
<term>Femelle</term>
<term>Humains</term>
<term>Maxillaire</term>
<term>Mâle</term>
<term>Obturateurs palatins</term>
<term>Os sphénoïde</term>
<term>Os zygomatique</term>
<term>Ostéo-intégration</term>
<term>Prothèse maxillofaciale</term>
<term>Prothèses et implants</term>
<term>Radiographie</term>
<term>Résultat thérapeutique</term>
<term>Sujet âgé</term>
<term>Sujet âgé de 80 ans ou plus</term>
<term>Tumeurs du maxillaire supérieur</term>
<term>Études rétrospectives</term>
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<front>
<div type="abstract" xml:lang="en">Abstract: Purpose. Fabricating a maxillary obturator can be challenging. Placement of implants can have a dramatic effect on the stability and retention of the prosthesis in the edentulous maxillectomy patient. This article provides clinical retrospective analysis of osseointegrated implants used to retain maxillary obturators. Material and Methods. Patient charts and radiographs were reviewed to determine implant status, bone loss patterns, and implant survival rates. Twenty-six patients were included with 102 implants placed, from which there were 19 intact withdrawals (implants lost because of recurrent disease or patient death), five implants with unknown status, 24 implant failures, and 54 functional implants. Results. The overall survival rate for implants in this patient population was 69.2%. The percent implant survival rate was 63.6% for the irradiated group (67.0% before radiation, 50.0% after radiation) and 82.6% for the nonirradiated group. Implants located in anterior sites demonstrated statistically significant differences in annual bone height changes compared with posterior sites. Conclusions. The majority of implant failures (18 of 24) occurred either at stage II surgery or before loading. Implants placed during tumor resection, implants placed within the maxillectomy defects, and implants receiving postoperative radiation demonstrated low survival rates. (J Prosthet Dent 1997;77:184-90.)</div>
</front>
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