[New control technic for tooth mobility]

The method described, used to establish tooth mobility, is a refinement of the method of Mühlemann, 30 years old. The improvements include a larger sensitivity of the chain of measures, a better stabilizatiin of the intraoral fixatioin of the instruement, the utilization of a retainer on the tooth to be tested, which ensures the precision of the point of forcetesting. This point remains the same for all measurements. Finally, the recording of the test on paper allows for an objective comparison of the course of the case.