Serveur d'exploration sur le patient édenté

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Changes in the edentulous maxilla in persons wearing implant-retained mandibular overdentures

Identifieur interne : 008F80 ( Main/Exploration ); précédent : 008F79; suivant : 008F81

Changes in the edentulous maxilla in persons wearing implant-retained mandibular overdentures

Auteurs : Timo O. N Rhi [Finlande] ; Mariëlle E. Geertman [Pays-Bas] ; Miluska Hevinga [Pays-Bas] ; Hanan Abdo [Pays-Bas] ; Warner Kalk [Pays-Bas]

Source :

RBID : ISTEX:EEDBF3D7C619997E70426F14853929E95F9E2092

Descripteurs français

English descriptors

Abstract

Abstract: Statement of Problem: It has been suggested that risk for severe resorption in the anterior maxilla is increased in persons wearing mandibular implant-retained overdentures. However, little information is available about the changes in the edentulous maxilla after mandibular implant treatment. Purpose: This study determined the possible changes in the width of the maxillary residual ridge 6 years after receiving mandibular implant-supported or implant-mucosa–supported overdentures and evaluated the association between the anatomic changes and subjective complaints with maxillary complete dentures. Methods and Material: The subjects for this study (n = 55), enrolled among the participants of a prospective clinical trial, were randomly assigned into 3 groups treated with: (a) implant-supported overdentures on a transmandibular implant system (n = 21); (b) implant-mucosa–supported overdentures on 2 IMZ implants (n = 20); or (c) conventional complete dentures (n = 14). A lingual contact occlusion concept with anterior open bite was used for tooth arrangement in all subjects. Diagnostic casts were made at baseline, and again at the 6-year follow-up. Most prominent points perpendicular to the crest of residual ridge were located in the incisor, canine, and premolar regions, after which the width of the ridge was recorded at these points with a Boley gage. Subjects’ opinions on their dentures were evaluated with a questionnaire. Results: Significant reduction in the width of the ridge was found in all measurement areas (mean difference = 0.4 to 0.6 mm; P <.0001). However, changes were small and not associated with the type of prosthetic restoration in the mandible. In subjects with implant-mucosa–supported overdentures, complaint of loose maxillary denture correlated with the decrement of residual ridge width. Conclusion: The width of residual ridge decreases with time, despite the type of mandibular prosthetic restoration. (J Prosthet Dent 2000;84:43-9.)

Url:
DOI: 10.1067/mpr.2000.107113


Affiliations:


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<term>Aged</term>
<term>Alveolar Bone Loss (etiology)</term>
<term>Analysis of Variance</term>
<term>Bone resorption</term>
<term>Canine</term>
<term>Cast evaluations</term>
<term>Centric occlusion</term>
<term>Chi-Square Distribution</term>
<term>Clinical findings</term>
<term>Complete denture</term>
<term>Complete dentures</term>
<term>Dent</term>
<term>Dental Models</term>
<term>Dental Prosthesis, Implant-Supported (adverse effects)</term>
<term>Dentistry</term>
<term>Denture</term>
<term>Denture Retention</term>
<term>Denture causes pain</term>
<term>Denture, Complete, Lower (adverse effects)</term>
<term>Denture, Complete, Upper</term>
<term>Denture, Overlay (adverse effects)</term>
<term>Edentulous</term>
<term>Edentulous maxilla</term>
<term>Female</term>
<term>Follow-Up Studies</term>
<term>Frontal contact</term>
<term>Humans</term>
<term>Implant</term>
<term>Imso overdenture</term>
<term>Incisive papilla</term>
<term>Incisor</term>
<term>Jaw, Edentulous (pathology)</term>
<term>Lateral forces</term>
<term>Loose maxillary denture</term>
<term>Male</term>
<term>Mandible</term>
<term>Mandibular</term>
<term>Mandibular implant treatment</term>
<term>Mandibular overdentures</term>
<term>Mandibular restoration</term>
<term>Maxilla</term>
<term>Maxillary</term>
<term>Maxillary Diseases (etiology)</term>
<term>Maxillary Diseases (pathology)</term>
<term>Maxillary denture</term>
<term>Maxillary dentures</term>
<term>Measurement error</term>
<term>Measurement sites</term>
<term>Middle Aged</term>
<term>Molar</term>
<term>Molar regions</term>
<term>Mouth Mucosa (pathology)</term>
<term>Multivariate Analysis</term>
<term>Nijmegen</term>
<term>Occlusion</term>
<term>Oral function</term>
<term>Oral maxillofac implants</term>
<term>Overdenture</term>
<term>Overdentures</term>
<term>Patient Satisfaction</term>
<term>Prominent points</term>
<term>Prosthesis</term>
<term>Prosthet</term>
<term>Prosthet dent</term>
<term>Prosthetic</term>
<term>Prosthetic dentistry</term>
<term>Residual</term>
<term>Residual ridge</term>
<term>Residual ridge width</term>
<term>Resorption</term>
<term>Sample size</term>
<term>Soft tissues</term>
<term>Statistics, Nonparametric</term>
<term>Time Factors</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr">
<term>Adulte d'âge moyen</term>
<term>Analyse de variance</term>
<term>Analyse multivariée</term>
<term>Facteurs temps</term>
<term>Femelle</term>
<term>Humains</term>
<term>Loi du khi-deux</term>
<term>Maladies du maxillaire supérieur (anatomopathologie)</term>
<term>Maladies du maxillaire supérieur (étiologie)</term>
<term>Mandibule</term>
<term>Modèles dentaires</term>
<term>Muqueuse de la bouche (anatomopathologie)</term>
<term>Mâchoire édentée (anatomopathologie)</term>
<term>Mâle</term>
<term>Overdenture (effets indésirables)</term>
<term>Prothèse dentaire complète inférieure (effets indésirables)</term>
<term>Prothèse dentaire complète supérieure</term>
<term>Prothèse dentaire implanto-portée (effets indésirables)</term>
<term>Résorption alvéolaire (étiologie)</term>
<term>Rétention d'appareil de prothèse dentaire</term>
<term>Satisfaction du patient</term>
<term>Statistique non paramétrique</term>
<term>Sujet âgé</term>
<term>Études de suivi</term>
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<term>Dental Prosthesis, Implant-Supported</term>
<term>Denture, Complete, Lower</term>
<term>Denture, Overlay</term>
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<term>Maladies du maxillaire supérieur</term>
<term>Muqueuse de la bouche</term>
<term>Mâchoire édentée</term>
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<term>Overdenture</term>
<term>Prothèse dentaire complète inférieure</term>
<term>Prothèse dentaire implanto-portée</term>
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<term>Maxillary Diseases</term>
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<term>Analysis of Variance</term>
<term>Bone resorption</term>
<term>Canine</term>
<term>Cast evaluations</term>
<term>Centric occlusion</term>
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<term>Clinical findings</term>
<term>Complete denture</term>
<term>Complete dentures</term>
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<term>Dental Models</term>
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<term>Implant</term>
<term>Imso overdenture</term>
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<term>Incisor</term>
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<term>Maxillary denture</term>
<term>Maxillary dentures</term>
<term>Measurement error</term>
<term>Measurement sites</term>
<term>Middle Aged</term>
<term>Molar</term>
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<term>Multivariate Analysis</term>
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<term>Occlusion</term>
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<term>Oral maxillofac implants</term>
<term>Overdenture</term>
<term>Overdentures</term>
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<term>Prominent points</term>
<term>Prosthesis</term>
<term>Prosthet</term>
<term>Prosthet dent</term>
<term>Prosthetic</term>
<term>Prosthetic dentistry</term>
<term>Residual</term>
<term>Residual ridge</term>
<term>Residual ridge width</term>
<term>Resorption</term>
<term>Sample size</term>
<term>Soft tissues</term>
<term>Statistics, Nonparametric</term>
<term>Time Factors</term>
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<term>Analyse de variance</term>
<term>Analyse multivariée</term>
<term>Facteurs temps</term>
<term>Femelle</term>
<term>Humains</term>
<term>Loi du khi-deux</term>
<term>Mandibule</term>
<term>Modèles dentaires</term>
<term>Mâle</term>
<term>Prothèse dentaire complète supérieure</term>
<term>Rétention d'appareil de prothèse dentaire</term>
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<div type="abstract" xml:lang="en">Abstract: Statement of Problem: It has been suggested that risk for severe resorption in the anterior maxilla is increased in persons wearing mandibular implant-retained overdentures. However, little information is available about the changes in the edentulous maxilla after mandibular implant treatment. Purpose: This study determined the possible changes in the width of the maxillary residual ridge 6 years after receiving mandibular implant-supported or implant-mucosa–supported overdentures and evaluated the association between the anatomic changes and subjective complaints with maxillary complete dentures. Methods and Material: The subjects for this study (n = 55), enrolled among the participants of a prospective clinical trial, were randomly assigned into 3 groups treated with: (a) implant-supported overdentures on a transmandibular implant system (n = 21); (b) implant-mucosa–supported overdentures on 2 IMZ implants (n = 20); or (c) conventional complete dentures (n = 14). A lingual contact occlusion concept with anterior open bite was used for tooth arrangement in all subjects. Diagnostic casts were made at baseline, and again at the 6-year follow-up. Most prominent points perpendicular to the crest of residual ridge were located in the incisor, canine, and premolar regions, after which the width of the ridge was recorded at these points with a Boley gage. Subjects’ opinions on their dentures were evaluated with a questionnaire. Results: Significant reduction in the width of the ridge was found in all measurement areas (mean difference = 0.4 to 0.6 mm; P <.0001). However, changes were small and not associated with the type of prosthetic restoration in the mandible. In subjects with implant-mucosa–supported overdentures, complaint of loose maxillary denture correlated with the decrement of residual ridge width. Conclusion: The width of residual ridge decreases with time, despite the type of mandibular prosthetic restoration. (J Prosthet Dent 2000;84:43-9.)</div>
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