For sure, stuff like implants, cosmetic dentistry, braces, crowns etc. still cost a non-trivial amount (though hopefully most are once in a lifetime things).
Yeah - I had a dental bone graft a few months back and I certainly hope its a once in a lifetime thing!
NB No criticism of the dentist that did it - took two dentists and an assistant nearly 5 hours and they have an impressive amount of kit...
A Cerec crown created on a CNC machine with the aid of 3D imaging costs about 500 GBP at my dentist in Norway including the work.