[Caries receptivity: a modern diagnostic protocol. II. The most important tests].

In this, the second part of the paper, the main clinical tests available today for carrying out early diagnosis of carioreceptivity are reviewed. On its own, measurement of the DMF-T index can classify an individual as carioactive or evaluate his "experience of caries", but it does non determine with any degree of certainty the probability of future caries. Measurement of stimulated salivary flow is important only when this is greatly reduced, as happens, for example, in xerostomy, but the finding of an almost normal flow is not on its own sufficient to make a diagnosis of carioreceptivity certain.

[Caries receptivity: a modern diagnostic protocol. I. The parameters to be considered].

In the first part of a larger study, the authors describe the concepts of caries activity and caries receptiveness. They analyse the numerous etiological factors involved in caries disease, together with the major clinical parameters which allow it to be diagnosed.

Zymographic characteristics of soluble and bound esterases in nervous tissues and brain tumors.

The Authors describe zymographic characteristics of non specific esterases in human and rat brain and in tumors of the nervous system. Bound and soluble esterases were evidenced using substrate and inhibitor systems in association with detergent extraction. In normal nervous tissues the results confirmed previous observations on the identity of the gray and white matter esterases, except for minor quantitative differences.