I am long since retired and have traveled the 800 miles to Mexico for affordable dental work. I had three root canal and crowns done by Dr. Castillo and each failed within weeks. All three teeth broke off at the gum line disclosing the fact that NO POSTS HAD BEEN INSTALLED. I contacted Dr. Castillo and he suggested I come back and have implants done. If a dentist cannot do a root canal honestly and competently I would never trust him to do an implant. read more