Why Veneers Aren't a Cover-Up for Decay
A porcelain veneer is a thin shell bonded to the front surface of a tooth, similar in concept to a false fingernail bonded over a real one. It changes how the tooth looks, but it doesn't remove bacteria or reverse decay happening underneath the enamel. If a cavity is left untreated and a veneer is placed over it, the decay keeps progressing in a spot that's now much harder to see and treat, because it's sealed under porcelain. That's why an exam and X-rays come before any cosmetic planning — we need to know what's actually going on with the tooth, not just what it looks like from the front. This is also true for teeth that look perfectly fine to the eye: early decay often isn't visible without X-rays, which is one reason imaging is part of any real veneer evaluation rather than a formality.