In displacement controlled tests, the fatigue strength of eroded pipes with 100 mm in eroded axial length, 0.5 in normalized eroded depth and 90° in eroded angle was almost equal to that given by the design fatigue curve in ASME B&PV Code Sec.
One-year water storage affected the bond strength to eroded and non-eroded dentin similarly.
Both working hypotheses therefore had to be rejected as (1) there were significant differences in bond strength to eroded versus non-eroded dentin surfaces for the different surface-preparation techniques tested, and (2) this effect was most prominent for the eroded specimens, although most test groups showed a clear decrease in bonding effectiveness after 1-year water storage.
The high decrease in bond strength to eroded dentin after ageing was corroborated by TEM that revealed enhanced nano-leakage (silver deposition) and less stainable collagen fibrils.
On 16 samples (eight eroded, eight non-eroded) per preparation group, rectangular composite restorations (Tetric EvoCeram, Ivoclar Vivadent, Schaan, Liechtenstein; shade A3, batch no. L58159) were placed for micro-tensile bond strength testing (μTBS).
This explains the lower strengths of the eroded concrete.
Whereas O-FL confirmed his well-known superiority in long-term bond strength to "normal" non-eroded dentin, it performed clearly less effectively onto eroded dentin.
Eroded dirt washes into the Chesapeake, making the water cloudy.
Eroded stock prices played a role in the General Mills deal as well.
For estimating the dominant period, we find the Hybrid period estimation method empirically to be the most effective for both eroded and approximate periodicity, combining the strengths of autocorrelation and the IPDFT in the two types of imperfect periodicity respectively.
There were no differences in bonding effectiveness to eroded and non-eroded dentin surfaces irrespective of which surface preparation technique was employed.
