Dear practo user
There is no cause for concern over small patches over milk teeth. Pictures show no destructive lesion. So for now, there is no option but to brush correctly twice daily and make sure no food gets lodged between teeth. All of them are milk teeth that will eventually fall and get replaced by permanent ones later in life.
Next Steps
use kidodent or cheerio gel toothpaste for kids
consult a paediatric dental surgeon if available
Health Tips
careful brushing and regular monitoring of oral hygiene is important instead of worrying