Can I get opinion on this crowned tooth that had RCT done on it?

[DimaDupani]

Apparently there's something beneath and it's bad. Tried to get opinions the dentist which did the RCT saw it but didn't act hopeless about it however i forgot to ask him more questions about it. Idk if he's a bad dentist trying to cover up his bad work.
Spoke to another dentist he said he wouldn't accept to do apicioectomy on it because of proximity to nerve.

 

[Dr M]

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