A detecting system which is used to detect the stress of false tooth is expressed

and a kind of MEMS capacitance pressure sensor is embedded in the pedestal of false tooth in the system.According to the principle of capacitance pressure sensor

the MEMS craft is adopted to develop the pressure sensor.By encapsulation craft of embedding sensor

some of square holes（its side length is 2 mm）are dug in the base of synthetic resin whose material is the same to the pedestal of false tooth

and the sensor is embedded distributedly in these holes.Then an equipment is made to load the pressure on the false tooth to test its action on the pedestal of false tooth.The test reaults show that the system is able to measure the stress on the pedestal of false teeth and its distributing when the teeth are occluded.The sensor is fine in its performance and has good stability to express the relationship between input and output and is applicable to measuring the strength on the lower structure of the oral cavity especially under the foul circumstance in oral cavity.