According to your situation, it may be that the first and second permanent molars are rotten and rotten beyond repair.
If the first molar is broken, you can only pull it out before making false teeth. If the second molar is broken and the third molar hasn't erupted, you can pull out the bad tooth and don't do denture for the time being, because the third molar may move forward gradually in the process of education eruption, and then replace the second molar, which is of course better than denture. Even if the third molar does not move forward in the future, the third molar is used as the abutment of the denture and then repaired.
Second molar, the effect will be much better