You can now do your idea of regenerating teeth structure. Just simply request in your own words. Keep in the intention of that specific tooth which requires this.
I didn’t want to suggest this earlier, as i felt you can first concentrate on pain relieving.
Regeneration can be tried for tooth structure , will require patience.
However if there is a cavity, it may require dental treatment.
I have used "REGENERATION OF BLOOD VESSELS TO HEART" for a senior citizen with blocked arteries. I did this with charging of drinking water along with Heart Serum.
I don’t know about the medical reports, but the patient got active, inspite of doctors losing hopes.
This was guided to me by @"Sanjay Roy-Certified VK Teacher" Sir. Thanks to Sanjay Sir for this guidance and Sharat Sir for beautiful VK !!