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A Porcelain Fused to High Noble Metal Crown is a type of dental crown that combines the strength of a metal substructure (usually high noble metal like gold, platinum, or palladium) with the esthetic appeal of porcelain. The metal provides durability, while the porcelain gives a natural tooth-like appearance.
These crowns are made from a combination of Palladium (Pd), and/or Platinum (Pt)>= 60% (with at least 40% Gold (Au)); titanium and titanium alloys – Titanium (Ti) > 85%;
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What is a porcelain fused to high noble metal crown (PFM)?
A PFM crown is a type of dental crown that combines the strength of a metal substructure (usually high noble metal like gold, platinum, or palladium) with the esthetic appeal of porcelain. The metal provides durability, while the porcelain gives a natural tooth-like appearance.
Why choose a PFM crown?
PFM crowns are often chosen when a balance between strength and aesthetics is needed. The metal substructure provides durability and strength, while the porcelain outer layer mimics the natural color and translucency of the adjacent teeth.
What is a high noble metal?
High noble metals are alloys that contain a high percentage of precious metals such as gold, platinum, or palladium. These metals are known for their biocompatibility and resistance to corrosion.
Are PFM crowns noticeable?
PFM crowns can look natural and blend well with surrounding teeth. However, in some cases, a thin dark line may be visible near the gum line, especially if the gums recede over time.
How durable are PFM crowns?
PFM crowns are known for their durability and strength due to the metal substructure. They are suitable for both front and back teeth and can withstand biting and chewing forces.
Do PFM crowns require special care?
While PFM crowns do not require extensive special care, it is essential to maintain good oral hygiene practices, including regular brushing, flossing, and dental check-ups. Avoiding excessive force on the crown, such as biting hard objects, can also help prolong its lifespan.
Can PFM crowns cause allergies or reactions?
Allergic reactions to high noble metals used in PFM crowns are extremely rare. These metals are generally well-tolerated by the body, and dentists carefully choose materials based on the patient’s medical history.
How long do PFM crowns last?
The lifespan of PFM crowns can vary based on factors such as oral hygiene, biting forces, and overall dental health. With proper care, they can last for many years, often a decade or more.
Can PFM crowns be replaced with newer materials?
In some cases, PFM crowns may be replaced with newer materials like all-ceramic or zirconia crowns for improved esthetics. Your dentist can discuss options based on your specific needs and preferences.
Are PFM crowns expensive?
PFM crowns are generally more affordable than all-ceramic crowns but can vary in cost based on factors such as the choice of metal alloy and the complexity of the case. Dental insurance may cover a portion of the cost, depending on the plan.
It’s important to consult with a dentist for personalized advice and to discuss your specific situation. The information provided here is general in nature and may not apply to every individual case.