When grinding your teeth (bruxism), neck muscle activity is 1.4 to 3.3 times more than their resting state.
Source: Laibovitz B, Temporomandibular Disorders and Headache: A Review of the Literature. Oral Health, June 2006, Vol 96, No 6, pg 12-18.
Hans Skariah, B.Sc., DMD
Promenade Court Dental Health Group in Mississauga
2233 Hurontario St., Mississauga, ON, Canada
(1/2 km north of the QEW in the Dome Building)