Skip to main content

Recordings of jaw muscle activity during hypertonic saline injections into the masseter muscle and during controlled biting tasks

Healthy adult volunteers are wanted to take part in a research study into the changes that occur in the function of jaw muscles when they are experiencing pain.

This study will investigate whether there are changes during teeth clenching by exploring the electrical activity of the smallest functional component of jaw muscles before and during pain experience.

Participation will involve attending the Jaw Function and Orofacial Pain Research Unit at Westmead Hospitals for a total of two sessions: you will have an impression made of your teeth in the first session; and jaw function experimentation in the second session, including controlled muscle pain induction, questionnaires and computed tomography imaging.

The first session will last approximately half an hour and the second session will take approximately two and a half hours of your time. Participation in this study will not cost you anything.

Ethics committee approval number: X19-0064


You may be eligible to participate in this study if you:

  • are aged 18 years and over
  • have no ongoing pain conditions,
  • are not diagnosed with temporomandibular disorders
  • are not diagnosed with significant medical/psychological disorders.

How to participate

If you have any questions or would like further details or if you are interested in assisting with this research, please contact the study facilitators: Dr Terry Whittle or Professor Greg Murray or phone 8890 7734.