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- Title
Clinical Experiences with Laser-Welded Titanium Frameworks Supported by Implants in the Edentulous Mandible: A 10-Year Follow-Up Study.
- Authors
Örtorp, Anders; Jemt, Torsten
- Abstract
Background: Long-term follow-up studies for more than 5 years are not available on laser-welded titanium frameworks. Purpose: To report and compare 10-year data on implant-supported prostheses in the edentulous mandible provided with laser-welded titanium frameworks and conventional gold alloy frameworks. Materials and Methods: Altogether, 155 patients were consecutively treated with prostheses at abutment level with two generations of fixed laser-welded titanium frameworks (test groups). A control group of 53 randomly selected patients with conventional gold alloy castings was used for comparison. Clinical and radiographic 10-year data were collected for the three groups. Results: All patients followed-up for 10 years ( n=112) still had fixed prostheses in the mandible (cumulative success rate CSR] 100%). The overall 10-year cumulative success rate (CSR) was 92.8 and 100.0% for titanium and gold alloy frameworks, respectively. Ten-year implant cumulative survival rate (CSR) was 99.4 and 99.6% for the test and control groups, respectively. Average 10-year bone loss was 0.56 (SD 0.45) mm for the titanium group and 0.77 (SD 0.36) mm for the control group ( p < 0.05). The most common complications for titanium frameworks were resin or veneer fractures, soft tissue inflammation, and fractures (12.9%) of the metal frame. Loose and fractured implant screw components were below 3%. Conclusion: Excellent overall long-term results with 100% CSR could be achieved with the present treatment modality. Fractures of the metal frames and remade prostheses were more common for the laser-welded titanium frameworks, and the first generation of titanium frameworks worked poorly when compared with gold alloy frameworks during 10 years ( p < 0.05). However, on average more bone loss was observed for implants supporting gold alloy frameworks during 10 years. The reasons for this difference are not clear.
- Subjects
TITANIUM castings; ARTIFICIAL implants; MANDIBLE; GOLD alloys; OSSEOINTEGRATED dental implants; LASER welding; INFLAMMATION
- Publication
Clinical Implant Dentistry & Related Research, 2006, Vol 8, Issue 4, p198
- ISSN
1523-0899
- Publication type
Article
- DOI
10.1111/j.1708-8208.2006.00020.x