Treatment outcomes of fixed or removable implant-supported prostheses in the edentulous maxilla. Part II: Clinical findings
Identifieur interne : 009122 ( Main/Merge ); précédent : 009121; suivant : 009123Treatment outcomes of fixed or removable implant-supported prostheses in the edentulous maxilla. Part II: Clinical findings
Auteurs : Nicola U. Zitzmann [Suisse] ; Carlo P. Marinello [Suisse]Source :
- The Journal of Prosthetic Dentistry [ 0022-3913 ] ; 2000.
English descriptors
- KwdEn :
- Abutment, Abutment screw, Attachment level, Biologic, Bone level, Bone loss, Bone quality, Clin, Clin periodontol, Clinical parameters, Complication, Dentistry, Edentulous, Edentulous maxilla, First year, Fracture, Gingival index, Gold screws, Healing period, Implant, Implant failure, Implant length, Implant placement, Implant prostheses, Implant survival, Insertion, Marginal bone level, Marinello, Maxilla, Maxillary, Maxillary implants, Mechanical complications, Months group, Mucosal, Mucosal hyperplasia, Oral maxillofac implants, Osseointegrated implants, Overdenture, Overdenture prostheses, Overdentures, Periodontal, Plaque index, Prosthesis, Prosthesis designs, Prosthesis insertion, Prosthesis placement, Prosthesis survival, Prosthet dent, Prosthetic, Prosthetic dentistry, Radiograph, Removable, Removable overdenture prostheses, Removable overdentures, Removable prostheses, Removable prosthodontics, Retreatment, Significant differences, Time group, Treatment outcomes, Veneering, Wald test, Zitzmann.
- Teeft :
- Abutment, Abutment screw, Attachment level, Biologic, Bone level, Bone loss, Bone quality, Clin, Clin periodontol, Clinical parameters, Complication, Dentistry, Edentulous, Edentulous maxilla, First year, Fracture, Gingival index, Gold screws, Healing period, Implant, Implant failure, Implant length, Implant placement, Implant prostheses, Implant survival, Insertion, Marginal bone level, Marinello, Maxilla, Maxillary, Maxillary implants, Mechanical complications, Months group, Mucosal, Mucosal hyperplasia, Oral maxillofac implants, Osseointegrated implants, Overdenture, Overdenture prostheses, Overdentures, Periodontal, Plaque index, Prosthesis, Prosthesis designs, Prosthesis insertion, Prosthesis placement, Prosthesis survival, Prosthet dent, Prosthetic, Prosthetic dentistry, Radiograph, Removable, Removable overdenture prostheses, Removable overdentures, Removable prostheses, Removable prosthodontics, Retreatment, Significant differences, Time group, Treatment outcomes, Veneering, Wald test, Zitzmann.
Abstract
Abstract: Statement of problem: There is a widespread belief that maxillary overdenture prostheses are associated with a higher frequency of complications and require more maintenance than fixed implant prostheses. Purpose: This prospective clinical study compared the treatment outcomes of fixed and removable implant-supported restorations in the edentulous maxilla with the main emphasis on the clinician’s point of view. Material and methods: Ten patients were treated with fixed screw-retained implant prostheses (group 1), and 10 patients were treated with removable implant-supported overdentures (group 2) in the edentulous maxilla. Recall was scheduled at 6-month intervals to investigate the prosthodontic treatment outcomes, including implant survival, prosthesis time until retreatment, and maintenance issues. Clinical parameters gingival index (GI), plaque index (PI), the clinical attachment level, and radiographic marginal bone levels measured, along with any biologic and mechanical complications were recorded. Results: Patients were followed over a mean period of 39 months (SD=7; group 1) and 27 months (SD=10; group 2) after implant placement. Cumulative implant survival was 97.6% for group 1 and 94.4% for group 2 after an 18-month observation period. The mean time until retreatment after prostheses insertion was 23.4 months for group 1 and 19.8 months for group 2 (n.s.). In both groups, the increase over time in the radiographically investigated bone level was found to be significant. The indices given for the mucosal health and oral hygiene status (GI and PI) were highly correlated in both groups at each recall appointment, but no significant differences were found between groups 1 and 2. Conclusion: In groups 1 and 2, comparable prosthodontic treatment outcomes were achieved. The majority of mechanical complications could be managed chairside during recall visits and did not require additional appointments, so that the time and costs involved in providing maintenance were kept down. (J Prosthet Dent 2000;83:434-42.)
Url:
DOI: 10.1016/S0022-3913(00)70038-2
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<term>Bone level</term>
<term>Bone loss</term>
<term>Bone quality</term>
<term>Clin</term>
<term>Clin periodontol</term>
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<term>Dentistry</term>
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<term>Edentulous maxilla</term>
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<term>Fracture</term>
<term>Gingival index</term>
<term>Gold screws</term>
<term>Healing period</term>
<term>Implant</term>
<term>Implant failure</term>
<term>Implant length</term>
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<term>Implant prostheses</term>
<term>Implant survival</term>
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<term>Marginal bone level</term>
<term>Marinello</term>
<term>Maxilla</term>
<term>Maxillary</term>
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<term>Mucosal hyperplasia</term>
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<term>Osseointegrated implants</term>
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<term>Overdenture prostheses</term>
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<term>Marinello</term>
<term>Maxilla</term>
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<term>Maxillary implants</term>
<term>Mechanical complications</term>
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<term>Mucosal hyperplasia</term>
<term>Oral maxillofac implants</term>
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<term>Overdenture prostheses</term>
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<term>Prosthesis designs</term>
<term>Prosthesis insertion</term>
<term>Prosthesis placement</term>
<term>Prosthesis survival</term>
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<front><div type="abstract" xml:lang="en">Abstract: Statement of problem: There is a widespread belief that maxillary overdenture prostheses are associated with a higher frequency of complications and require more maintenance than fixed implant prostheses. Purpose: This prospective clinical study compared the treatment outcomes of fixed and removable implant-supported restorations in the edentulous maxilla with the main emphasis on the clinician’s point of view. Material and methods: Ten patients were treated with fixed screw-retained implant prostheses (group 1), and 10 patients were treated with removable implant-supported overdentures (group 2) in the edentulous maxilla. Recall was scheduled at 6-month intervals to investigate the prosthodontic treatment outcomes, including implant survival, prosthesis time until retreatment, and maintenance issues. Clinical parameters gingival index (GI), plaque index (PI), the clinical attachment level, and radiographic marginal bone levels measured, along with any biologic and mechanical complications were recorded. Results: Patients were followed over a mean period of 39 months (SD=7; group 1) and 27 months (SD=10; group 2) after implant placement. Cumulative implant survival was 97.6% for group 1 and 94.4% for group 2 after an 18-month observation period. The mean time until retreatment after prostheses insertion was 23.4 months for group 1 and 19.8 months for group 2 (n.s.). In both groups, the increase over time in the radiographically investigated bone level was found to be significant. The indices given for the mucosal health and oral hygiene status (GI and PI) were highly correlated in both groups at each recall appointment, but no significant differences were found between groups 1 and 2. Conclusion: In groups 1 and 2, comparable prosthodontic treatment outcomes were achieved. The majority of mechanical complications could be managed chairside during recall visits and did not require additional appointments, so that the time and costs involved in providing maintenance were kept down. (J Prosthet Dent 2000;83:434-42.)</div>
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