What "no-prep" means
No-prep veneers refer to attaching a thin shell with little to no shaping of the tooth surface beforehand. This is an approach that may be considered for specific tooth conditions, such as smaller or inward-positioned teeth. It isn't something that applies equally to every tooth or every person.
When it may be considered
When teeth are smaller and there's existing space, or when alignment is set slightly inward, a minimal-reduction design may be considered. Even then, the final design is adjusted through mock-ups and simulation.
When it may not be appropriate
When teeth already protrude, are noticeably darker, or are unevenly aligned, some minimal reduction may still be needed. Forcing a no-prep approach under these conditions can lead to excessive thickness, an unnatural result, or gum irritation.
Limits of reversibility
Even without visible reduction, some surface treatment during bonding may occur, and this should be treated as a change that cannot be fully reversed. Claims that the process is "fully reversible" should be viewed with caution.
Frequently asked questions
This article is general information, not a diagnosis or a recommendation for treatment. Individual results vary, and any treatment plan requires an in-person examination at a Partner clinic.