They are fairly lenient on what I consider cosmetic dentistry. Have been in similar situations with regards to unspent HSA and once had all my fillings replaced with tooth colored resin ones. Turns out my old school ones (silver/amalgam) can lead to cracked teeth over time so they consider it legit. Also had a crown/bridge replaced with a cubic zirconia one that has no visible metal at the gumline. That worked too because the newest ones are healthier for you gums supposedly. So get anything metal out of your mouth, it’s better for time travel/teleporting as well.
.
