Q. I have a 4yr old with capped teeth. Her teeth were capped after a heart procedure & a dose of antibiotics, approximately 2 yrs ago. After the antibiotics her top teeth went grey & the enamel appeared to be “ridged” or like it melted away. Anyway the dentist suggested capping, she’s now with a new dentist. My daughter just had a check up & apparently the dentist feels there’s an infection in her gums, caused by one of the caps & wants to extract it. She said my daughter’s mouth is reacting to the material in the caps & this can occasionally happen. I just wanted a 2nd opinion on whether the problem is common & if extracting is the only answer.