Had root canal and crown 1/17. Developed cavity a year later.

He used a laser on gums and put temporary crown on. when novocaine wore off -- had pain in tooth and gums. after almost a week went back to dentist -- said rinse with 1/2 peroxide and 1/2 water. 3 days later called emergency number. sent me to periodontist -- took x-rays and examined talked about doing implant instead. put me on antibiotic -- told me to come back in 2 weeks and we'd discuss what should be done.