Dental crowns

There is no single figure, and any specific number offered without knowing the tooth should be treated with caution. What actually determines longevity is how much sound tooth remains underneath, whether the margin can be kept clean, whether the bite is balanced, and whether grinding is managed. A crown on a tooth with strong walls and good hygiene behaves very differently from one on a heavily broken-down root. The crown material itself rarely fails first; the tooth or the margin usually does.

Preparation is carried out under local anesthetic, so the appointment itself is not usually described as painful. Afterwards, sensitivity to cold and pressure is common for a period and normally settles. Persistent or worsening pain, particularly throbbing or pain that wakes you, is a different pattern and suggests the nerve is inflamed. That should be assessed instead of waited out. Tenderness in the gum around a new margin for a few days is usual.

A crown covers the whole visible tooth and requires the most reduction. An onlay covers part of it, replacing damaged cusps while leaving sound structure alone. A veneer is a thin facing on the front surface only, used mainly for appearance, not to hold a weakened tooth together. The general principle is to remove as little tooth as the situation allows, so if a crown is proposed it is fair to ask whether an onlay would achieve the same thing.

A crown is a shell; it needs a solid, correctly shaped foundation to sit on. Where decay or an old filling has been removed, a core build-up rebuilds the missing bulk so the crown has something to grip. It is a separate procedure with its own code and fee, which is why it appears as an extra line instead of being folded into the crown. If your quote is for a crown alone on a visibly broken tooth, ask whether a build-up is expected.

Back teeth that have had root canal treatment are commonly crowned because they have lost structure both to the original problem and to the access made during treatment, which leaves them prone to splitting. Front teeth with minimal loss are sometimes restored without a crown. It is a clinical judgment about how much sound tooth remains and what forces the tooth takes, so it should be explained in terms of your specific tooth instead of as an automatic rule.

Yes. The crown itself cannot decay, but the natural tooth underneath and the margin where the two meet certainly can, and this is one of the most common reasons crowns are eventually replaced. Because the decay starts under an opaque restoration it is often neither visible nor painful until it is well advanced, which is why radiographic review matters and why cleaning right at the gum line is more important on a crowned tooth, not less.

Keep it, do not attempt to recement it at home, and contact the practice. Why it came off matters: sometimes the cement has simply failed and it can be refitted, and sometimes it came off because the tooth underneath has decayed or fractured, in which case recementing would seal a problem in. The exposed prepared tooth can be sensitive in the meantime, and leaving it uncovered for a long period can allow the neighboring teeth to move so the crown no longer fits.

There is no universally best material. Appearance, the position of the tooth, how much space is available, the opposing teeth, whether you grind, and how the crown will be cemented all pull in different directions. A high-strength ceramic suited to a molar under heavy load is not the same product as a highly translucent ceramic chosen for a front tooth. The useful question is not which material is best in general but which is being chosen for your tooth and why.

Conventionally two: preparation with a temporary, then fitting after the laboratory has made it. Practices with chairside milling may complete it in one visit. Additional appointments are added when preliminary work is needed, a build-up, root canal treatment or crown lengthening, or where appearance is critical and a separate shade or trial appointment is worthwhile. The plan should tell you which of these apply to you before you start.

Front teeth are the hardest aesthetic work in dentistry because the result has to match a neighboring natural tooth exactly, in shade, translucency and the way it catches light. What helps is discussing appearance before preparation, choosing a material suited to appearance, not only to strength, and allowing for a shade appointment or trial where the case warrants it. It is reasonable to ask what the practice does if the appearance is not acceptable at the fit appointment.

Not necessarily: many crowned teeth have never had root canal treatment and never need it. A crown is sometimes placed alongside root canal treatment because the tooth needed both, but crowning alone does not require it. If root canal treatment is proposed alongside a crown, ask specifically what finding makes it necessary for this tooth.

There is no fixed answer, because longevity depends far more on how much sound tooth remains underneath, whether the margin can be kept clean, and whether the bite and any grinding are managed than on the material itself. Crowns most often fail through decay at the margin or fracture of the underlying tooth instead of the ceramic simply wearing out.