1996 Volume 40 Issue 1 Pages 46-58
This study was conducted to estimate the biting force in the occluding phase during tapping movements in complete denture wearers.
The calculation of the biting force during isometric contractions of masticatory muscles has been reported in relation to actual force and masticatory muscular activities. The system was developed to quantify masticatory muscular activities during the occluding phase using the mandibular kinesiograph (K 6- I Diagnostic System) and electromyograph (Polygraph).
In this study, the subjects were ten complete denture wearers treated at Tsurumi University Dental Hospital. Scatter diagrams were obtainedfrom masticatory muscular activities and biting force in each subject using thissystem. Two curvilinear regression were calculated by the power curve and quadratic curve of the scatter diagram. These calculated values of the biting force were compared with conventional curvilinear regression test and known actual values.
The results were as follows.
1. The biting force could be extracted and quantified in the occluding phase during tapping movement. 2. By comparing with this calculation method with that of conventional curvilinear regression, theerrors in the value of biting force obtained by the power curve and the quadratic curve were significantly smaller than those obtained by conventional curvilinear regression (p>0.05).
