Crack in crown??

[Buggy]

Hi,

I've had trouble with a crown off and on for a while. I've had x-rays, CBCT, and have been told by an endo and dentist there is no issue. This tooth has been root canaled. I looked at the crown today, and it looks like there is crack on the top...I'm going back to the dentist on Thursday for a different permanent crown placement, so I will have her look again. I posted pictures to get your input. THANKS!

 

[MattKW]

I don't see a crack. Please point out where you mean. If you're having trouble with this tooth, an Xray showing the full RCT would be essential to post up here.

 

[Buggy]

I don't see a crack. Please point out where you mean. If you're having trouble with this tooth, an Xray showing the full RCT would be essential to post up here.

 

[MattKW]

Nice looking RCT. Both mesial canals, and appears also two distal canals well filled with no sign of abscess. The access cavity into the crown is quite conservative, and has caused minimal damage to the crown.
No sign of crack in original photo of crown. Good margins on crown. If a crown cracks, you'll find that a part of it will fall off or you'll start to have difficulty eating due to the altered bite.

 

[Buggy]

Thank you for responding. I appreciate it.