The Manufacture Of Transducer For Tooth Mobility

objectives: To produce transducer of tooth mobility and to test its clinical performance. Method:(1) Produced according the theory of electromagnetic induction and digitized singlechip technique, the transducer of tooth mobility can convert electric signal into digital signal to make for more accurate diagnoses. (2)According their different motilities, 80 teeth diagnosed by conventional method were collected and divided into four groups: normal group, Ⅰ°group,Ⅱ°group and Ⅲ°group. Then the transducer of tooth mobility measured all these teeth respectively and recorded all values. Different manipulators executed two diagnoses above. Result:(1) The transducer of tooth mobility was produced initially. (2) With statistical analyze of all values of four groups, there are significant statistical-discrepancy among these groups each other. Conclusion: Transducer of tooth mobility is convenient to test the mobility of pro-and post-tooth in clinic and basic research.