Signs a crown needs attention
- A crown that feels loose or has come off entirely
- A visible crack or chip in the crown itself
- Persistent discomfort, swelling or a bad taste near the tooth
- Gum recession that leaves a dark line visible at the edge of an older metal-ceramic crown
- A crown that simply looks tired next to newer, brighter restorations
Why crowns eventually need replacing
Even a well-made crown does not last forever. The cement or bonding seal can weaken over years, decay can develop at the margin where the crown meets the natural tooth, and older metal-ceramic crowns in particular can show a visible grey line as gums recede with age.
What the assessment involves
Before any replacement, the underlying tooth needs a proper look, ideally with an X-ray, to check whether decay has developed underneath the crown or whether the tooth itself needs further treatment, such as a root canal, before a new crown can be fitted.
Occasionally, what looks like a failing crown is actually a healthy crown on a tooth that has simply developed a new problem elsewhere, which is exactly why a diagnosis matters before jumping to a replacement.
Choosing the new material
Replacing an older metal-ceramic crown with a modern metal-free material such as zirconia or e.max often solves the grey-line problem permanently, since neither contains any metal substructure to show through as gums recede. Our guide to zirconia, e.max and metal-ceramic crown materials compares the options in more depth.
The replacement process
The old crown is removed, the tooth is reassessed and reprepared if needed, and a fresh digital scan is taken. At Dentalmed, the new crown is then designed and milled in our own in-house laboratory, so the shade and shape can be matched precisely to your other teeth, often within the same short visit.