I Have A Five Year Old Grandson Who Had His

I have a five year old grandson who had his first dentist visit today, the dentist said his 1yr molars had stopped growing. A few years ago, his finger and toenails fell off and his hair quit growing for a for couple months. A dermatologist at the time said he had a viral infection that cause the problem with the hair and nails, would that also cause problems with his teeth?