What is the name of dental exact speciality that would best be suited
for treating chronic bruxism? Geo: Los Angeles

Don't know if this helps, but maybe:

http://answers.google.com/answers/threadview?id=560485

common cases of bruxism should be controlled by general practioner
dentists, but in some cases, the patient might seek an oral surgeon's
consultation.
many treatments are available but no single treatment is always
successful. but in my exprience, the NTI-TSS (nociceptive trigeminal
inhibition tension suppression system) device gives excellent results.