MURRIETA Dentist. Dr. Doug Cast provides TMJ, TMD, TMJ mouth guard, TMJ specialist, TMJ treatment, TMJ Pain Management, TMJ alternative treatment, TMJ pain relief to patients suffering from jaw pain, grinding teeth, clenching teeth, facial pain, lock jaw, difficulty chewing, facial swelling, neck pain, migraines, mouth pain, jaw tightness in Temecula, Winchester, Caynon Lake, Fallbrook. Temecula Dentist providing TMJ in MURRIETA, California.