Propagation of the impact on the tooth caused by jaw tapping movement

The influence of mechanical stimulation on the human body is extremely impo rtant. We hypothesized that if tooth impact is propagated to other sites of the body, this impact will have some effect on those sites as well. The pu rpose of this study was to investigate the extent to which tooth impact was propagated in the head and neck. It was found that the waves recorded on t he upper canine are divided into a high frequency component and a low frequ ency component at a border of approximately 7 kHz. The amplitude of the imp ulse wave was 80.813 g for the low frequency component, and 177.839 g for t he high frequency component. In terms of propagated vibration from the cani ne, the amplitude of the low frequency component was larger than that of th e high frequency component, and greatest at the chin, followed in descendin g order by the zygomatic bone, forehead and vertebra prominens. For both fr equency components, the amplitude of the propagated vibrations was small co mpared with the impulse waves. These results provide a basis for future ana lysis of the influence of such impact on cell response.