Abstract | PURPOSE: The purpose of this prospective multicenter study was to evaluate and compare the clinical performance of laser-welded titanium fixed partial implant-supported prostheses with conventional cast frameworks. MATERIALS AND METHODS: Forty-two partially edentulous patients were provided with Brånemark system implants and arranged into 2 groups. Group A was provided with a conventional cast framework with porcelain veneers in one side of the jaw and a laser-welded titanium framework with low-fusing porcelain on the other side. The patients in group B had an old implant prosthesis replaced by a titanium framework prosthesis. The patients were followed for 3 years after prosthesis placement. Clinical and radiographic data were collected and analyzed. RESULTS: Only one implant was lost, and all prostheses were still in function after 3 years. The 2 framework designs showed similar clinical performance with few clinical complications. Only one abutment screw (1%) and 9 porcelain tooth units (5%) fractured. Four prostheses experienced loose gold screws (6%). In group A, marginal bone loss was similar for both designs of prostheses, with a mean of 1.0 mm and 0.3 mm in the maxilla and mandible, respectively. No bone loss was observed on average in group B. No significant relationship (P > 0.05) was observed between marginal bone loss and placement of prosthesis margin or prosthesis design. CONCLUSION: The use of laser-welded titanium frameworks seems to present similar clinical performance to conventional cast frameworks in partial implant situations after 3 years.
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Authors | T Jemt, P Henry, B Lindén, I Naert, H Weber, C Bergström |
Journal | The International journal of prosthodontics
(Int J Prosthodont)
2000 Jul-Aug
Vol. 13
Issue 4
Pg. 282-8
ISSN: 0893-2174 [Print] United States |
PMID | 11203643
(Publication Type: Clinical Trial, Comparative Study, Journal Article, Multicenter Study, Randomized Controlled Trial)
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Chemical References |
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Topics |
- Adolescent
- Adult
- Aged
- Alveolar Bone Loss
(diagnosis)
- Chi-Square Distribution
- Dental Casting Technique
- Dental Prosthesis, Implant-Supported
- Dental Restoration Failure
- Dental Soldering
(instrumentation)
- Dental Veneers
- Denture Design
- Denture, Partial, Fixed
- Female
- Humans
- Jaw, Edentulous, Partially
(rehabilitation)
- Lasers
- Life Tables
- Male
- Middle Aged
- Prospective Studies
- Statistics, Nonparametric
- Titanium
- Welding
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