Bruxism (aka grinding of teeth)
Continuing with the subject of tooth conditions we encounter daily, bruxism is very common. Estimates of prevalence of this damaging behavior based on studies range from 50 to 75% of the general population. It wears the teeth down, and accelerates once the tooth wear has progressed past the enamel layer. It also makes chewing muscles sore (such as the masseter and temporalis) which can then affect hyperactivity of other connected muscles in the neck and upper back.
There is a lot that is not understood about bruxism. Currently, theory states that it results from one (or more) of three causes: neurologic (central nervous system-based behavior, and this includes effects of meds ...