my baby is 13 months old. he got 8 to 9 teeth out of which the upper front teeth are getting a little blackish. can someone help me with the reason and solution to avoid it?

A. Hi maintain a habit of brushing your kid's teeth twice daily using small head soft bristles toothbrush along with rice grain size amount of kid's toothpaste.. consult with your nearest Pediatric dentist for proper clinical examination