All of the following are acceptable treatment options for this patient's sensitivity EXCEPT:

Erosion from GERD causes loss of enamel and dentin but the pulp is almost never irreversibly inflamed unless the erosion is near-pulpal. Treatment follows a conservative escalation: eliminate the acid source, topical fluoride/desensitizers, bonded composite build-ups, and full-coverage crowns for severely compromised teeth. "RCT all teeth" is invasive, unnecessary, and violates the principle of minimally-invasive dentistry.