zirconia crowns

When it come to improving the quality of your smile, there are a few options available. There's the zirconia crown or PFM , gold-based, and porcelain fused to metal crown. However, the two most popular choices now include the PFM and the zirconia crowns, which are known for their maximum strength and great aesthetics. But which of the two is the better option? Let's look at this comparison on porcelain fused to metal crown vs zirconia crown, focusing on the features and limitations of each.

Porcelain Fused to Metal (PFM)

Ever since the latter part of the 1950s, PFM crowns have been used by dentists for their patients who are in need of a reliable way of restoring their teeth. With its established and proven track record, it remains as a classic choice of some dentists and patients until now. To fabricate this type of crown, a thin thimble-like metal is prepared to fit over the affected tooth. Then, it's fused with a thin layer of porcelain to make the crown appear like the natural tooth in terms of the color and shape.

What's good about PFM crowns? For the most part, these are very strong and durable. Whether you use the crowns for the back or front teeth, these are expected to last for a long time. Moreover, they look quite natural and blend well with the shade of your original teeth. This is why you won't feel uncomfortable about smiling or opening your mouth since these crowns have the similar appearance as the rest of your teeth – making them perfect as replacement for your front teeth.

On the other hand, there are some concerns that may arise from using PFM crowns. One of these is the dark line that tends to show at the edge of the crown. This is the metal portion that's located underneath the porcelain surface of the crown, which may be visible to the naked eye. Although it's possible for the crown's edge to be positioned underneath the gum line, there's still an instance for the dark line to appear. This happens once the gums begin to recede, which means there's no way to hide the dark line.

It's true that PFM crowns match the color of your natural teeth. But if you stare at the crown closely, it's still not as natural-looking, as compared to all-ceramic options. Keep in mind that the crown still has a metal structure, and it can be difficult to mask it entirely with porcelain since the latter is opaque and not very translucent.

We've mentioned that you can vouch on the durability of a PFM crown. Yet, you can't dismiss the fact that it can still potentially break off or chip over time. Once the porcelain breaks, a repair work may be possible, but without a guarantee that the issue won't recur in the future. Thus, a new crown may need to be made over time. If it's only a minor chipping, though, polishing or smoothing over the area can solve the issue.

Zirconia Crowns

Zirconia crowns are made of zirconia - it is a type of metal oxide that don't have the similar qualities of a conventional ceramic. In terms of aesthetics, it's one of the finest you can find, along with its indestructible quality. These features make zirconia the typical choice of patients who require a reliable bridge and crown material.

Zirconia crowns are known for their exceptional strength. There is no risk of fracture or breakage regardless of the food you eat or chew with this crown. The aesthetics is also flawless, so it's not surprising that this material is the preferred core material for bridges and crowns since some staining or glazing may be done to enhance the natural appeal.

Dental technicians produce zirconia crowns using 3D printing or a milling machine that's CAD CAM-assisted. The result include a superior fit and higher level of comfort because the crown's layers are customized according to the natural teeth of the patient. Zirconia is also safe, and it does not cause allergic reactions to patients because of the biocompatibility aspect of this material.

Bottom Line

At the end of the day, it helps to compare and weigh your options when choosing the best crown material for you. By looking at the features of the different choices available, you can ensure your comfort and satisfaction with your decision.



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