Porcelain Fused Metal Crowns (PFM dental Crowns) are used to repair teeth with chips, cracks, and decay. They can also be used to replace missing tooth structure.
They are made of porcelain fused to metal and can last anywhere from 10 to 15 years. This makes them a popular choice for dental crowns.https://bellavisomedicalcenter.ae/dentistry/porcelain-fused-metal-crowns/
Metal Alloys
Porcelain Fused Metal Crowns (PFM dental Crowns) are one of the most popular fixed prosthodontic restorations. They are known for their reliability and long-term survival rates.
They consist of a thin, strong metal framework that perfectly fits the prepared tooth and is bonded to porcelain using a high-melting temperature alloy. This ensures that the porcelain can bond to the metal without changing its color.
A large number of PFMs had small deviations, mainly in the content of major constituents and/or additional elements. A smaller percentage of crowns had large deviations and elements that should not have been present in the relevant alloys, such as aluminum (Al) which were found in four crowns.
Lifelike Appearance
Porcelain Fused Metal Crowns (PFM Dental crowns) have a lifelike appearance that resembles the way a natural tooth looks.
PFM Dental crowns are a reliable, durable option for dental restorations. Their positive attributes make them a popular choice among dentists for restoring damaged, decayed, and missing teeth.
They are also less likely to damage the gum tissue than other restorations due to their softer, flexible construction and high resistance to biting forces. The main drawback with this type of restoration is the recession of gum tissue that occurs over time.
This can result in a dark line at the base of your gums that is not aesthetically pleasing, and may cause your dentist to reposition your tooth or recommend another dental treatment. It can also be a sign that you are grinding your teeth or have a severe habit of clenching your jaws.
3D Scanning
3D laser scanning is a non-contact process that utilizes light from a laser to capture angles and distances.In the case of reverse engineering, designers can use a manufactured part as a starting point for a new design, incorporating engineering optimization already inherent to the original piece.
Structured light scanning is an effective means of evaluating the fit and functionality of a product, ensuring that it works as expected. This cross-check allows manufacturers to build products that work properly.
Durability
Porcelain Fused Metal Crowns combine the ideal appearance of a ceramic crown with the strength and durability of metal. This combination is a great option for patients who want to avoid the discomfort of an All-ceramic crown but still need the strength and support that a metal restoration offers.Read more on BellaViso.
They are also an excellent choice for people with metal allergies because they tend to be less likely to cause an allergic reaction.
However, PFM’s do have some drawbacks. One of the main ones is the “black line” that sometimes shows up next to the gum line.
Another issue is that the metal framework of these restorations may eventually cause recession in the gum tissue. This can create an ugly gray ring that’s not aesthetically pleasing.
The best way to ensure that your porcelain fused to metal crown is a durable and long-lasting dental restoration is to care for it with the same diligence you do your natural teeth. This means avoiding biting on hard candies and ice, and not grinding your teeth during the night.
