The Health Benefits of Invisalign
Most people think, “I don’t need invisalign, my teeth aren’t too crooked.” But did you know that in addition to improving tooth alignment, invisalign treatment helps to improve dental form and function?
What is the difference between an all porcelain crown and a porcelain fused to metal crown?
What is a Porcelain Fused to Metal or PFM crown?
Porcelain-fused-to-metal crowns (PFMs) have been successfully used for many years, providing reliable, long-lasting restorations. In recent years, an increasing number of dentists are choosing zirconia restorations. The number of PFM crowns done by dentists is lower compared with all porcelain crowns. Some dentists use zirconia or all-ceramic restorations almost exclusively, particularly when placing a single crown.
While the reliability and durability of PFMs are beyond question, it can be difficult to create highly esthetic restorations because of the underlying metal. The underyling metal must be masked with opaque porcelain and may remain slightly visible even after layering with porcelain. Opaque also prevents light from passing through the restoration as it would with a natural tooth. Another potential problem with PFM restorations is gum recession. Over time, as gum tissue recedes, the metal margin of the PFM is exposed, creating a grayish colored line that isn’t esthetically pleasing. One way to overcome this problem is to use a porcelain margin, but this may not always be a practical solution. PFM crowns are layered with feldspathic porcelain, which is a relatively weak material that wears opposing teeth at a very high rate. This can be a problem for patients who grind their teeth.
Why Choose Zirconia Restorations?
Zirconia restorations offer clinicians several advantages, and the introduction of newer and more esthetically pleasing zirconia materials has greatly increased their appeal.
What are some features of zirconia restorations?
- Zirconia provides high-strength which is beneficial for patients who grind their teeth . Zirconia is a stronger material than porcelain fused to metal which has a higher probability of fracturing if someone grinds their teeth or bites into something hard.
- The high biocompatibility of zirconia will not cause allergies in patients who have allergic reactions to PFM restorations
- Zirconia has good soft tissue, or gum, response which is useful for patients suffering from gum irritation caused by PFM or metal restorations.
- Zirconia restorations are precision-fitted, so margins are extremely accurate and the crowns fit the teeth better.
- Zirconia is resistant to hot and cold, which reduces sensitivity
- Less tooth structure is required to be removed to have a zirconia crown placed which is beneficial to the tooth.
- Zirconia is more esthetic than a PFM crown, it can mask underlying tooth discoloration.
Patients leave Shine DDS in Bensonhurst Brooklyn eager to show off their bright new smile to all their friends and family.
Click here to schedule your own personalized consultation with Dr. Shine. You can also give us a call at 718-751-0101 or send us an email at info@shinedds.com.
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