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Göteborgs universitets publikationer

Laser-Welded Titanium Frameworks Supported by Implants in the Partially Edentulous Mandible: A 10-Year Comparative Follow-Up Study

Författare och institution:
Anders Örtorp (-); Torsten Jemt (Institutionen för odontologi)
Publicerad i:
Clinical Implant Dentistry and Related Research, 10 ( 3 ) s. 128-139
Artikel, refereegranskad vetenskaplig
Sammanfattning (abstract):
Background: Long-term knowledge of different framwork materials in the partially edentulous implant patient is not available. Purpose: To report and compare 10-year data on freestanding implant-supported partial prostheses with laser-welded titanium (test) and conventional gold-alloy (control) frameworks. Materials and Methods: Altogether, 52 partially edentulous patients were consecutively provided with laser-welded prostheses (n=60) in the partially edentulous lower jaw (test group). A control group of 52 randomly selected patients with gold-alloy castings (n= 60) was used for comparison. Clinical and radiographic 10-year data was retrospectively colledted and evaluated for both groups. Results: The overall 10-years implant Cumulative Survival Rate (CSR) was 93.0% (loaded implants; 96.4%), with a 10-year implant CSR of 91.5% and 94.7% for test and control implants, respectively (p>0.05). Out of a total of 22 lost implants, 17 implants (77.3%) were shorter than 10 mm. The overall 10-year prosthesis CSR was 93.7%, with a corresponding 10-year CSR of 88.4% and 100% for test and control groups, respectively (p<0.05). Average 10-year bone loss was 0.46 (SD 0.47) mm and 0.69 (SD 0.53) mm for the test and control group (p<0.001), respectively. Only 1.0% of implants had >3 mm accumulated bone loss after 10 years. Ten of the prostheses in both groups had mechanical problems (8.3%). None of the frameworks or implants fractured, but more fraktures of porcelain veneers were observed in the test group (p<0.05). Conclusions: The protocol of implant treatment in the partially edentulous jaw functions well during 10 years although prosthetic maintenance was required. However, laser-welded titanium framework presented more problems as compared to gold-alloy frameworks. More loaded implants were lost in the test group (p<0.05), and higher incidence of porcelain chipping was noted in the test group (p<0.05). However, bone loss was on an average lower for the test group during the 10-year of follow-up (p<0.001).
Ämne (baseras på Högskoleverkets indelning av forskningsämnen):
Klinisk medicin ->
Odontologi ->
Oral protetik
complications, framework design, fixed prostheses, laser-welding, implants, veneering material
Postens nummer:
Posten skapad:
2008-01-24 10:26
Posten ändrad:
2012-05-24 15:50

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