Frequently Asked Questions about Dental PMMA


What is the difference between PMMA and zirconia?

Zirconia implants last longer than PMMA dental implants and are ultimately the stronger material. They are difficult to break, crack, or chip. Zirconia implants look natural and feel great, while PMMA dental implants can become discolored over time.


What is the dental term PMMA?

The first use of polymethyl methacrylate (PMMA) as a dental device was for the fabrication of complete denture bases. Its qualities of biocompatibility, reliability, relative ease of manipulation, and low toxicity were soon seized upon and incorporated by many different medical specialties.


What are the indications for dental PMMA?

Polymethyl methacrylate (PMMA) is commonly used for prosthetic dental applications, including the fabrication of artificial teeth, denture bases, dentures, obturators, orthodontic retainers, temporary or provisional crowns, and for the repair of dental prostheses.


What are the disadvantages of PMMA in dentistry?

The disadvantages of using polymethyl methacrylate are poor impact resistance, wear and abrasion resistance, limited heat resistance (with its max resistance at about 80° C), and limited chemical resistance. It is also prone to attack by organic solvents, and cracking under load is possible.


What is a PMMA dental bridge?

PMMA is a resilient material that helps to reduce impact forces, ensuring that it does not get transferred to the implants. Easy to repair should the need arise. While it can become stained over time, it can be easily polished. It will not wear down opposing natural teeth.


How long do PMMA crowns last?

How long does it last? From 6 months to 2 years, without changing the color tone and maintaining the shape.


Can you bond PMMA to teeth?

The highest bond strength to both the heat-cured and the autopolymerizing PMMA was obtained by grinding grooves on the joint surface of an acrylic resin tooth before it was cured to the PMMA 

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