Root canals

[Healthy T]

I had consultation done recently where the dentist said that these two last back molars would both need root canals and crowns.

Is that my only option?I have not experienced any pain and the pulp itself seems to be healthy.

A filling has Fallen out on the last tooth, but I don’t see why it can not be refilled as normal filling.

Attached are the X-rays of these two last teeth. Any help in knowing if the if the diagnosis is just, is very much appreciated.

 

[MattKW]

Very low-res pics and not well aligned, but 1st molar appears to have an abscess, so an RCT is required, followed by a crown. 2nd molar will be a deep filling at best, but I can't tell if it will need RCT. A pulp sensibility test will show 1st molar to be non-vital ("dead"), and should show 2nd molar to be vital ("alive").