Maxillary anterior and mandibular posterior residual ridge resorption in patients wearing a mandibular implant‐retained overdenture
Identifieur interne : 004683 ( Main/Exploration ); précédent : 004682; suivant : 004684Maxillary anterior and mandibular posterior residual ridge resorption in patients wearing a mandibular implant‐retained overdenture
Auteurs : N. Tymstra [Pays-Bas] ; G. M. Raghoebar [Pays-Bas] ; A. Vissink [Pays-Bas] ; H. J. A. Meijer [Pays-Bas]Source :
- Journal of Oral Rehabilitation [ 0305-182X ] ; 2011-07.
Descripteurs français
- Wicri :
- topic : Groningue.
English descriptors
- KwdEn :
- Anterior maxilla, Anterior maxillary, Blackwell publishing, Bone resorption, Center groningen, Combination syndrome, Complete dentures, Conventional denture, Conventional group, Dental implants, Denture, Denture group, Edentulous, Edentulous maxilla, Groningen, Group mandibular overdenture, Implant, Implantretained, Lower border, Mandible, Mandibular, Mandibular overdenture, Mandibular overdentures, Maxilla, Maxillary, Maxillofacial surgery, Overdenture, Overdentures, Panoramic radiographs, Posterior mandible, Posterior mandibular, Present study, Prosthet dent, Radiograph, Reference area, Reference points, Residual, Residual ridge, Residual ridge resorption, Resorption, Ridge resorption.
- Teeft :
- Anterior maxilla, Anterior maxillary, Blackwell publishing, Bone resorption, Center groningen, Combination syndrome, Complete dentures, Conventional denture, Conventional group, Dental implants, Denture, Denture group, Edentulous, Edentulous maxilla, Groningen, Group mandibular overdenture, Implant, Implantretained, Lower border, Mandible, Mandibular, Mandibular overdenture, Mandibular overdentures, Maxilla, Maxillary, Maxillofacial surgery, Overdenture, Overdentures, Panoramic radiographs, Posterior mandible, Posterior mandibular, Present study, Prosthet dent, Radiograph, Reference area, Reference points, Residual, Residual ridge, Residual ridge resorption, Resorption, Ridge resorption.
Abstract
Summary The mandibular implant‐retained overdenture could improve masticatory function compared to the conventional complete denture. However, increased forces exerted by the overdenture could increase residual ridge resorption of the maxillary anterior and mandibular posterior areas. The aim of this study was to compare the effect of the mandibular implant‐retained overdenture using two or four dental implants, or the conventional complete denture on resorption of the residual ridge of the maxillary anterior and mandibular posterior areas over a period of 10 years. In total, 120 patients, 30 patients treated with an overdenture on two implants (two‐implant group), 30 patients with an overdenture on four implants (four‐implant group) and 60 patients treated with a conventional full denture (conventional group), participated in this study. On panoramic radiographs, made before and 10 years after treatment, proportional area measurements were applied to determine changes in bone height. After 10 years, a statistically significant amount of bone resorption had occurred in the anterior maxilla in the two‐implant group and in the four‐implant group. A significant amount of bone resorption had occurred in the posterior mandible in all three groups. There were no statistically significant differences between the groups in both areas. Patients presented large individual differences. It is concluded that patients rehabilitated with implant‐retained mandibular overdentures are not subjected to more residual ridge resorption in the anterior maxilla when compared to patients wearing a conventional full denture. Regarding the mandibular posterior residual ridge, resorption was irrespective of wearing an implant‐retained mandibular overdenture or a conventional mandibular denture.
Url:
DOI: 10.1111/j.1365-2842.2010.02180.x
Affiliations:
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Tymstra</name><affiliation wicri:level="3"><country>Pays-Bas</country><placeName><settlement type="city">Groningue</settlement><region nuts="2" type="province">Groningue (province)</region></placeName><wicri:orgArea>Department of Oral and Maxillofacial Surgery, University Medical Center Groningen, University of Groningen</wicri:orgArea></affiliation></author><author><name sortKey="Raghoebar, G M" sort="Raghoebar, G M" uniqKey="Raghoebar G" first="G. M." last="Raghoebar">G. M. Raghoebar</name><affiliation wicri:level="3"><country>Pays-Bas</country><placeName><settlement type="city">Groningue</settlement><region nuts="2" type="province">Groningue (province)</region></placeName><wicri:orgArea>Department of Oral and Maxillofacial Surgery, University Medical Center Groningen, University of Groningen</wicri:orgArea></affiliation></author><author><name sortKey="Vissink, A" sort="Vissink, A" uniqKey="Vissink A" first="A." last="Vissink">A. Vissink</name><affiliation wicri:level="3"><country>Pays-Bas</country><placeName><settlement type="city">Groningue</settlement><region nuts="2" type="province">Groningue (province)</region></placeName><wicri:orgArea>Department of Oral and Maxillofacial Surgery, University Medical Center Groningen, University of Groningen</wicri:orgArea></affiliation></author><author><name sortKey="Meijer, H J A" sort="Meijer, H J A" uniqKey="Meijer H" first="H. J. A." last="Meijer">H. J. A. 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However, increased forces exerted by the overdenture could increase residual ridge resorption of the maxillary anterior and mandibular posterior areas. The aim of this study was to compare the effect of the mandibular implant‐retained overdenture using two or four dental implants, or the conventional complete denture on resorption of the residual ridge of the maxillary anterior and mandibular posterior areas over a period of 10 years. In total, 120 patients, 30 patients treated with an overdenture on two implants (two‐implant group), 30 patients with an overdenture on four implants (four‐implant group) and 60 patients treated with a conventional full denture (conventional group), participated in this study. On panoramic radiographs, made before and 10 years after treatment, proportional area measurements were applied to determine changes in bone height. After 10 years, a statistically significant amount of bone resorption had occurred in the anterior maxilla in the two‐implant group and in the four‐implant group. A significant amount of bone resorption had occurred in the posterior mandible in all three groups. There were no statistically significant differences between the groups in both areas. Patients presented large individual differences. It is concluded that patients rehabilitated with implant‐retained mandibular overdentures are not subjected to more residual ridge resorption in the anterior maxilla when compared to patients wearing a conventional full denture. Regarding the mandibular posterior residual ridge, resorption was irrespective of wearing an implant‐retained mandibular overdenture or a conventional mandibular denture.</div></front></TEI><affiliations><list><country><li>Pays-Bas</li></country><region><li>Groningue (province)</li></region><settlement><li>Groningue</li></settlement></list><tree><country name="Pays-Bas"><region name="Groningue (province)"><name sortKey="Tymstra, N" sort="Tymstra, N" uniqKey="Tymstra N" first="N." last="Tymstra">N. Tymstra</name></region><name sortKey="Meijer, H J A" sort="Meijer, H J A" uniqKey="Meijer H" first="H. J. A." last="Meijer">H. J. A. Meijer</name><name sortKey="Meijer, H J A" sort="Meijer, H J A" uniqKey="Meijer H" first="H. J. A." last="Meijer">H. J. A. Meijer</name><name sortKey="Raghoebar, G M" sort="Raghoebar, G M" uniqKey="Raghoebar G" first="G. M." last="Raghoebar">G. M. Raghoebar</name><name sortKey="Vissink, A" sort="Vissink, A" uniqKey="Vissink A" first="A." last="Vissink">A. Vissink</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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