Can a patients with dental crown do a MRI test of cervical spine?

Those crowns , seem to be old, and there is receding gums, but also you will need to change those crowns ,there is no other way to correct this.when you have crowns that do not fit, the most important  thing its to change them as soon as possible,because this line you see might be decay...

It should be safe, but it is always a risk. I suggest to my patients that they bite off slightly to one side on natural teeth or cut the harder fruit, such as apples, into slices before eating. Softer fruits should be fine.

I would agree that  the crown does not look very good and it may also be quite thin in spots as a lot of grinding was done.It should be redone, but the dentist should reevaluate the space available to do a crown. The tooth in front of the crown shows a lot of erosion on the biting surface....

Gold crowns generally have excellent fit and longterm service, but are not very aesthetic. Newer materials now available for crowns are all ceramic, white and highly aesthetic. In order to have your crown made to look like a tooth, the good crown would need to be removed and replaced with an all...

If the front tooth  with a dead nerve is totally calcified(no canal) then a root canal is not needed usually. If the canal is still present, then a root canal would need to be done. The single tooth can be bleached/whitened some from the inside and some from the outside..there are different...

Zirconia crowns are adjustable, especially if they have a layer of porcelain over the front and incisal edge.  It is really important that you determine that shortening one is the best answer for your smile.  And how you can tell is to take a sharpie black marker and just lightly color...