1 - Key requirements for dental FRCs

Abstract

The oral environment, where dental constructs and devices are used, is host to various different hostile features of the masticatory system. The oral cavity is the first part of digestive canal, with the additional functions of communication both phonetically and through gesture. As part of the digestive canal, the oral cavity places demands on dental biomaterials and restorations, both mechanically and chemically. Dentition also plays a significant role in the articulation of sounds. In the context of humans, dentition as a part of the oral cavity is of importance for social wellbeing. The natural appearance of teeth in terms of color shade, surface texture, and basic shape of the teeth, has important culturally-related meaning for humans. In the modern world, patients are well aware of the possibilities of dental treatments and how they can fulfill the needs of function and appearance. Another critical aspect of dental biomaterials and restorations relates to temporal properties. The ageing of restorations of whatever material changes the physical and other materials’ properties. Adequate mechanical strength, high surface gloss, and good resistance against wear are examples of requirements for dental restorations. Additionally, biological aspects of biofilm adsorption of proteins and microbes contribute to longevity of restorations, adjacent tissues, and treatment outcome. Complexity of the oral environment, in combination with the complex multiphasic dental biomaterials and dental devices in restorative and prosthetic dentistry, challenges the dental profession in its aim for long-lasting treatment outcomes.