Electronic system for the acquisition, processing and storage of bite force data Introduction and Objetive: This study describes the design and construction of an electronic system for a bite force sensor data acquisition, (Gnathodynamometer, GIB), that had been previously developed with the aim of storing human oclusal force data. The subjects are identified by their name and a 4 digit code. Materials and Methods: The system was developed to store bite force records of up to 60 people with 6 measurements per individual. The information can be stored in a memory system and can be downloaded to any computer by means of an RS232 port by means of a software application that was developed on a Borland-Delphi platform. The files are then formatted by the software application to a plain text (*.txt) which facilitates the data analysis by conventional tools. Results: A portable electronic device was obtained with the following measures: 19x14x5 cm and 528 gr of weight. The Gnathodynamometer calibration showed a determination coefficient R2 of 0.9997 and a resolution of 150gr. The reproducibility test in patients, showed an intraclass correlation coefficient for bite force between 0.9 and 0.97. Conclusion: A light and easy to operate system was developed that could be taken to the schools were bite force data gathering is required to be done in a secure an efficient way. Key Words: bite force, instrumentation, measurement equipment. Rev. CES Odont. 21(2) 39-45. 2008 Introduccion