Its borderline case it may be treated by filling or rct! It depends how your body responds to it First step is removal of decay, at that very point it can be decided if filling or rct Usually a temporary filling is placed and if pain subsides, it is replaced by permanent else its going for RCT

Root canal is the best option ...Go for it

You should get root canal treatment done which is definitely the best solution to preserve this tooth.....

You should get an rct done.

Better that u do an RCT

Hi the x-ray clearly shows the decay is deep and it's very closer to the pulp chamber of the tooth it's better you go for root canal treatment for permanent solution.

Hi ,carious lesion is near to pulp horn so first go with the temporary filling with dical base n keep it on observation for 21 days if pain goes off then go for Permanand filling of laser/GIC...according to yr budget.if pain persists then it mean pulp(tooth nerve)is effected then RCT is compulsory with crowning bcz it’s masticatory tooth it may fracture without crown later on.