Will zirconia crowns cause tooth decay?

How Cavities Form

Cavities primarily develop from plaque buildup on teeth. When food particles linger on the tooth surface and are not adequately cleaned away, bacteria thrive on these remnants, producing acids that erode the tooth's enamel. Over time, this creates small holes that expand and lead to tooth decay.

Plaque forms when bacteria feed on food residues left on teeth, especially after sugary or starchy meals. Without proper cleaning, this buildup eventually hardens into tartar, damaging the enamel and making it easier for cavities to develop.

Does Zirconia Develop Plaque?

One key advantage of zirconia crowns is their resistance to plaque buildup. Unlike natural tooth enamel, zirconia does not conduct temperature changes, which prevents food and bacteria from sticking to the surface as easily. This property makes it less likely for tartar to form on the crown itself.

However, while the zirconia crown remains cavity-resistant, natural teeth beneath or adjacent to the crown can still develop plaque if the crown placement is not done properly. Any gaps or unsealed areas between the crown and the natural tooth can allow bacteria to infiltrate, leading to potential decay of the underlying tooth structure.

Conclusion

In short, zirconia crowns themselves do not get cavities, but the underlying tooth can still be susceptible to decay if the crown is improperly installed. For a comprehensive look at the pros and cons of zirconia, read our article What is the Downside of Zirconia Crowns? Vsmile is a leading dental materials supplier in China, offering high-quality products to meet diverse dental needs. If you have any questions or require further assistance, please reach out to us directly.