[Gingival bleeding test with a new tonometer and testing of a chlorhexidine containing dentifrice].

A novel gingival tonometer is introduced with which definable pressures from 8.2-196.7 p/mm2 on the gum can be exerted. Bleeding from the gum can be produced by definable pressure, relating the inflammatory condition to the pressure insult and so achieving objective measurements. In 53 cases of periodontitis marginalis the results of treatment with a mouthwash containing chlorhexidine was tested. The gingivitis was so far improved by one week's treatment with the rinsing combination that in 1287 periodontitis cases the pressure had to be doubled before bleeding was produced.