PNIPU: Fiberglass dentures

2021: Creating a Frame for Glass Fiber Dentures

March 12, 2021 it became known about the creation in Russia of a framework for dentures based on fiberglass. It is 78% stronger than the plastic analog. A new development was noted by scientists at Perm National Research Polytechnic University (PNIPU).

Typically, acrylic plastic based on polymethyl methacrylate is used to make the prosthesis substrate. It accurately reproduces the surface of human tissue with which the prosthesis contacts, but this material is not strong enough.

Metal alloys are used to protect the prosthesis from damage. But they do not always adhere firmly to plastic, which can cause microcracks and chips. The developers of PNIPU improved the design, strengthening the plastic base with a special frame made of strong and light glass fiber Trinia. This material is similar in structure to plastic and provides chemical contact with it. Fiberglass has already shown effectiveness in physical, mechanical and technological properties in orthopedic structures, the PNIPU said.

In Russia, PNIPU created a framework for dentures based on fiberglass, it is 78% stronger than plastic

Biomechanics compared the properties of three samples of prostheses made of plastic: without additives, with strengthening with a Renfert metal mesh and with a framework made of Trinia. The tests were held on the basis of the Scientific Center for Powder Materials Science of Perm Polytechnic.

According to the creators, the fiberglass base increased the strength of the structure by 77.7% compared to plastic analogues without additives and by 55.7% when compared with samples with a metal mesh. In addition, it turned out to be twice as resistant to crack formation.

According to PNIPU, by March 2021, about 5 million people in Russia use partial or complete removable dental prostheses. Companies annually produce about 1 million prostheses for patients with complete lack of teeth.^[1]

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