I don’t have specific information on the visa requirements, but the embassy will want to see a detailed treatment plan outlining how long the procedure will take. If they see that it’s only a two-week process, they will likely reject the application.
I would recommend opting for a more extensive dental treatment, such as Crystal Smile or Invisalign, to increase the chances of obtaining a 5-year Visa. I’m currently undergoing Invisalign treatment and successfully received a DTV visa for it.
A crown procedure typically takes a maximum of two weeks, which is not considered a long enough treatment to qualify for a 5-year Dental Treatment Visa (DTV).