**New Trends for the Processing of Poly(Methyl Methacrylate) Biomaterial for Dental Prosthodontics New Trends for the Processing of Poly(Methyl Methacrylate) Biomaterial for Dental Prosthodontics**

DOI: 10.5772/intechopen.69066

Ma. Concepción Arenas-Arrocena, Liliana Argueta-Figueroa, René García-Contreras, Omar Martínez-Arenas, Berenice Camacho-Flores, María del Pilar Rodriguez-Torres, Javier de la Fuente-Hernández and Laura S. Acosta-Torres Ma. Concepción Arenas-Arrocena, Liliana Argueta-Figueroa, René García-Contreras, Omar Martínez-Arenas, Berenice Camacho-Flores, María del Pilar Rodriguez-Torres, Javier de la Fuente-Hernández and Laura S. Acosta-Torres Additional information is available at the end of the chapter

Additional information is available at the end of the chapter

http://dx.doi.org/10.5772/intechopen.69066

#### **Abstract**

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Rehabilitation of masticatory function in patients with absent teeth with removable dentures is an established form of treating partial or complete dentition in edentulous patients. The developments in recent decades with dental implants dominate current dental research. However, medical contraindications, a negative attitude toward implants, or financial limitations on the part of the patients limit their universal applicability, so the rehabilitation with dental prostheses still makes up a significant portion of everyday clinical practice. Conversely, removable dentures are used in the critical conditions of the oral cavity. There are about 500 strains of microorganisms in the mouth, which form the biofilm in an acidic environment causing several issues, such as denture stomatitis, deterioration of the periodontal status of the remaining teeth, or carious lesions in the supporting teeth. Therefore, it is very important to choose a suitable material for the prosthesis. Poly(methyl methacrylate) (PMMA) is an acrylic resin usually used with a long tradition for prosthetic purposes. The aim of this chapter is to present the trends for the processing of PMMA. It includes the chemical synthesis, conventional thermal processing of this acrylic resin, the new processing technique assisted with ultrasound, the antibacterial effect on PMMA with nanoparticles, and the cytotoxicity, genotoxicity, and mutagenesis of this material.

**Keywords:** thermal polymerization, acrylic resin, biomaterial, polymer, dental materials, acrylic resin

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© 2017 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

© 2016 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution,
