Cerec Speedfire Furnace Versus Infire Htc Speed Furnace: Comparison of Flexural and Fatigue Strength of Katana STML Zirconia with Different Sintering Programs
Abstract
This study investigated the effect of different sintering furnaces, the in Fire HTC Speed and the CEREC SpeedFire, on the flexural strength, fatigue strength, translucency, opalescence, and Weibull modulus of Katana STML zirconia bars. Material and Methods: Katana STML zirconia dental material specimens (bars) were cut according to ISO 6872 standards using a 3-dimensional beam milling file provided by Dentsply Sirona. The blocks measured 1.3mm x 4mm x 18mm post-sintering. Specimens were randomly assigned to groupings (strength-testing group and furnace) and sintered. After sintering, specimens were polished in accordance with ISO 6872. Specimens were then tested for their initial three-point bending flexural strength and following fatigue strength in the Instron universal testing machine, and a Weibull modulus was calculated from the results. Spectrophotometry was used to measure the translucency and opalescence of the post-sintered specimens.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 24, 2019
- Accession Number
- AD1127828
Entities
People
- Pamela S. Cotton
Organizations
- United States Army