Abstract
The aim of the current paper is to review the available literature reporting on comparative studies of heat-cured resins and three-dimensionally printed biomaterials for denture bases in terms of their composition, properties, fabrication techniques and clinical performance. The methodology included applying a search strategy, defining inclusion and exclusion criteria, selecting studies to summarize the results. Searches of PubMed, Scopus, and Embase databases were performed independently by three reviewers to gather literature published between 2018 and 2021. A total of 135 titles were obtained from the electronic databases, and the application of exclusion criteria resulted in the identification of 42 articles pertaining to conventional and 3D printed technology for removable dentures. The main disadvantages of the heat-cured resins for removable dentures are that they require lots of special equipment, skilled personnel and time. Emerging technologies, such as 3D printed dentures, have the potential to alleviate these problems allowing for faster patient rehabilitation. With the development of digital dentistry, it is becoming increasingly necessary to use 3D printed resin materials for the manufacturing of removable dentures. However, further research is required on the existing and developing materials to allow for advancement and increase its application in removable prosthodontics.
Highlights
Several different resins are used in prosthetic dental medicine, according to their composition and method of processing for the purposes of removable prosthetics
The purpose of this paper is to review the available literature on the juxtaposition of the heat-cured resins and the three-dimensionally printed biomaterials for denture bases, in terms of their composition, properties, fabrication techniques and clinical performance
The tensile strength is approximately 60 MPa, the density—1.19 g/cm3, and the modulus of elasticity—approximately 2.4 GPa. This type of material is extremely stable: it does not discolor in ultraviolet light and exhibits remarkable aging properties [9]
Summary
Several different resins are used in prosthetic dental medicine, according to their composition and method of processing for the purposes of removable prosthetics. All types of dental resins have a satisfactory aesthetic and functional effect. They are easy to process and provide relatively good functional stability. Despite the number of advantages, they have some characteristic disadvantages—they undergo significant volumetric and optical changes in the conditions of the oral cavity after a certain period of time, which are expressed in their shrinkage and coloring [1]. The absorption of water, the intake of coloring foods and beverages, adversely affect the removable prosthetic restoration. This is a cause of discomfort during masticatory function, deterioration of aesthetic qualities and over time—the patient’s dissatisfaction [2]
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