A feldspathic veneer, which is the traditional forms of ceramic veneers, is made by painting a tooth model with different layers of ceramic. The resulting product is then baked. The baking reduces changes the veneer in different ways (for example it may shrink), so the process is repeated to get it right.
Pressed ceramic veneers, a new form of veneers, is currently gaining traction in its use. The fabrication process involves waxing a tooth to form a particular shape of the tooth, melting out the wax, injecting it with ceramic, and putting it under high pressure. The result is a high-quality veneer that has several advantages including these four:
The use of high pressure during the fabrication process strengthens the pressed veneers in such a way that is not possible in feldspathic veneers. This is pressure fits the ceramic particles tightly. These veneers are highly resistant to chipping and cracking. This makes them particularly suitable for those who have chronic teeth grinding (bruxism), which can damage weaker veneers.
Ease of Wearability
Artificial products cannot have the same texture as your natural body. This is why dental treatments, such as veneers, may cause some forms of wear and damage to your natural teeth. However, pressed ceramic veneers are less abrasive as compared to their feldspathic counterparts, which mean they also cause less damage.
As mentioned in the brief description of the fabrication process of veneers, the repeated painting and oven firing of feldspathic veneers changes its shape and fit. This means that what goes into the oven is not what comes out of it. Even though the processes are repeated to reduce the effect of the shrinking and warping, the result is rarely ideal. This is not the case with pressed ceramic, whose waxing and pressing results into a better fit.
Feldspathic veneers are translucent, which would be a good thing if you had perfectly colored teeth that don't change. Unfortunately, your teeth change color as you age. If you have feldspathic veneers, then expect them to change along with your teeth. This is not the case with pressed ceramic, which almost never change their shade.
It's clear that pressed ceramic veneers have several advantages over the conventional feldspathic. However, this doesn't mean that pressed ceramic veneers are the ideal treatment for every situation; they also have their shortcomings. For example, color control is more of a challenge in pressed ceramic than feldspathic veneers. Therefore, talk to your dentist to help you choose the best veneers for your situation.