Can cavities still form around a veneer?
Yes — porcelain cannot decay, but the tooth around and behind it can.
A veneer covers only the front surface of a tooth. The back, the sides, the root, and the thin margin where porcelain ends are all natural tooth — and every one of them can develop decay if plaque stays.
Where decay hides on veneered teeth
The highest-risk zone is the margin: decay starting there can travel under the shell, where it is invisible from outside and quiet at first. Sensitivity, a darkening edge, or floss that starts to catch are the usual early clues.
Daily flossing at the margins and regular checkups with bitewing X-rays catch these lesions while they are small. Decay risk varies widely with saliva, diet, and hygiene habits, so keep the recall schedule your dentist sets rather than waiting for symptoms.
MediIndex articles are for general information only and are not medical advice, diagnosis, or advertising. Outcomes vary by individual — consult a board-certified specialist for personal decisions.