Analysis of daytime variations in gingival crevicular fluid: a circadian periodicity?
Within the limits of the present study, it can be suggested that daytime variations did not have significant impact on GCF volume. The sampling methodology had no apparent impact on the circadian periodicity of GCF.
These results suggest that the decline from the premorbid baseline, rather than current level of functioning, best predicts the extent of brain damage reflected in the rCBF abnormality, a finding independent of demographic variance.