[Effect of conditioning on the circulation of rat teeth].
Budapest, Hungary. In Fogorv Sz, 2000
In the present study we examined wether acid etching (test1: 15 s and test2: 60 s) alters the blood circulation of the pulp lower incisors, by applying it directly onto a thin layer of pulpal wall (40-50 microns) without any liner, and following the instructions provided by the manufacturer.
Monthly and seasonal variations in the frequency of congenital anomalies.
La Plata, Argentina. In Int J Epidemiol, 1990
No seasonal variation was proven (p less than 0.01) for any malformation type in any of the three series of data by means of Walter and Elwood's test, or Hewitt et al's non-parametric test2 applied to seven instances with sample sizes smaller than 50 cases.