Design and construction of a transducer for bite force registration

Juan F. Isaza, Gaylord S. Throckmorton, Samuel I. Roldán

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


This study describes the development of a system for quantification of human biting forces by (1) determining the mechanical properties of an epoxy resin reinforced with carbon fiber, (2) establishing the transducer's optimal dimensions to accommodate teeth of various widths while minimizing transducer thickness, and (3) determining the optimal location of strain gages using a series of mechanical resistance and finite element (FE) analyses. The optimal strain gage location was defined as the position that produced the least difference in strain pattern when the load was applied by teeth with two different surface areas. The result is a 7.3-mm-thick transducer with a maximum load capacity beyond any expected maximum bite force (1500 N). This system includes a graphic interface that easily allows acquisition and registration of bite force by any health-sciences or engineering professional.

Original languageEnglish (US)
Pages (from-to)1146-1149
Number of pages4
JournalJournal of Biomechanics
Issue number8
StatePublished - May 29 2009


  • Bite force
  • Carbon fiber
  • Electric extensiometry
  • Finite elements method
  • Strain gage

ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine
  • Biomedical Engineering
  • Rehabilitation


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