Umfang:
Online-Ressource
ISSN:
1942-4426
Inhalt:
Purpose: To examine the screw preload, coefficient of friction (COF), and tightening torque needed to overcome the thread friction of an implant-abutment-screw complex. Materials and Methods: In a customized load frame, 25 new implant-abutment-screw complexes including uncoated titanium alloy screws were torqued and untorqued 10 times each, applying 25 Ncm. Results: Mean preload values decreased significantly from 209.8 N to 129.5 N according to the number of repetitions. The overall COF increased correspondingly. There was no comparable trend for the thread friction component. Conclusion: These results suggest that the application of a used implant-abutment-screw complex may be unfavorable for obtaining optimal screw preload.
In:
volume:30
In:
number:6
In:
year:2017
In:
pages:542-544
In:
The international journal of prosthodontics, Lombard, Ill. : Quintessence Publ. Co., 1988-, 30, Heft 6 (2017), 542-544, 1942-4426
Sprache:
Englisch
URN:
urn:nbn:de:101:1-2023060109251920952235
URL:
https://doi.org/10.11607/ijp.5286
URL:
https://nbn-resolving.org/urn:nbn:de:101:1-2023060109251920952235
URL:
https://d-nb.info/1291160469/34