Document Detail


Implant-supported welded titanium frameworks in the edentulous maxilla: a 5-year prospective multicenter study.
MedLine Citation:
PMID:  12475159     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: This study evaluated the 5-year clinical and radiographic performance of fixed implant-supported maxillary prostheses with either welded titanium or conventional cast-gold alloy frameworks. MATERIALS AND METHODS: Fifty-eight consecutive patients were provided with 349 osseointegrated Brånemark system implants in the edentulous maxilla at six different implant centers. Twenty-eight of the patients received, at random, prostheses with laser-welded titanium frameworks, and the remaining 30 patients had prostheses with conventional cast-gold alloy frameworks. Clinical and radiographic data were collected for 5 years after prosthesis placement. RESULTS: The titanium and cast-gold framework groups exhibited similar cumulative survival and success rates (CSR). The 5-year implant CSR from time of placement was 91.4% and 94.0%, respectively, and from prosthesis delivery the rate was 94.9% and 95.6%, respectively. The corresponding 5-year prosthesis CSRs were 96.4% and 93.3%. One patient from each group lost all the implants and turned to complete dentures within the first year of function. Another patient with a cast-gold framework had the prosthesis replaced after 4 years, basically because of problems with the veneering material. No fractures of implant components were observed during the follow-up period. Bone loss was on average 0.59 mm (SD 0.97 mm) during 5 years, with no statistical difference between the two groups. CONCLUSION: Welded titanium frameworks presented a similar favorable clinical performance as conventional cast-gold alloy frameworks in fixed implant-supported prostheses in the edentulous maxilla after 5 years in function. Implant failures were concentrated in only a few patients in each study group.
Authors:
Torsten Jemt; Birgitta Bergendal; Kristina Arvidson; Tord Bergendal; L D S d Ulf Karlsson; Bengt Linden; Torgil Rundcrantz; Inger Wendelhag
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Publication Detail:
Type:  Clinical Trial; Journal Article; Multicenter Study; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The International journal of prosthodontics     Volume:  15     ISSN:  0893-2174     ISO Abbreviation:  Int J Prosthodont     Publication Date:    2002 Nov-Dec
Date Detail:
Created Date:  2002-12-11     Completed Date:  2003-03-05     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8900938     Medline TA:  Int J Prosthodont     Country:  United States    
Other Details:
Languages:  eng     Pagination:  544-8     Citation Subset:  D    
Affiliation:
Brånemark Clinic, Public Dental Health, Göteborg, Sweden. torsten.jemt@vgregion.se
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Alveolar Bone Loss / classification,  radiography
Dental Casting Investment / chemistry
Dental Implants
Dental Prosthesis Design
Dental Prosthesis, Implant-Supported*
Dental Restoration Failure
Dental Soldering*
Denture Design*
Denture Retention
Esthetics, Dental
Female
Follow-Up Studies
Gold Alloys / chemistry
Humans
Jaw, Edentulous / radiography,  rehabilitation*,  surgery
Male
Maxilla / surgery*
Middle Aged
Osseointegration
Prospective Studies
Statistics, Nonparametric
Survival Analysis
Titanium / chemistry*
Treatment Outcome
Chemical
Reg. No./Substance:
0/Dental Casting Investment; 0/Dental Implants; 0/Gold Alloys; 7440-32-6/Titanium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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