my son age is 6yrs 8mnths upper front 4 teeth broke. down teeth all coming . But above teeth front 4 teeth little also not coming out. why

A. There is no reason to buy the only thing could be that the gums are not ready for that eruption as of now which is why it’s not happening but don’t worry it will come over the period and when the weather you will see the gun are ready the eruption will start happening