Comparative Evaluation of Surface Roughness of Injection Molded, CAD–CAM Milled and Rapid Prototyped Resin Denture Base Surfaces: An In Vitro Study
Year: 2025
Type: article
Abstract: The effectiveness of a material as a denture base depends on several acceptable factors, including its availability, ease of handling and processing, affordability, ease of repair, low solubility, improved fit, and longevity.8,9 The presence of surface or subsurface voids in a denture has been reported to enable the colonization of oral microorganisms, thus affecting its physical, esthetic, and hygienic properties.8 With evolution in the field of computer-aided designcomputer-aided manufacturing (CAD-CAM) (either additive or IntroductIonEdentulism, defined as "the state of being without any natural teeth," is considered to be an impediment impacting both patients' quality of life and their nutrition.1 Literature highlights the prevalence of edentulism among patients aged 50 years and above in India as 16.3%.1 Despite the availability of various modern treatments for missing teeth, removable complete or partial dentures made of acrylic resins are widely used in the rehabilitation of elderly edentulous patients in many parts of the world. 2 Numerous microorganisms, such as bacteria, fungi, viruses, and protozoa, are nurtured in the oral cavity, making it the secondlargest and diversified microbiome next to the gastrointestinal (GI) tract.It harbors >700 species of bacteria and is invaded mainly by Streptococcus, Lactobacillus, Actinomyces, Neisseria, Veillonella, and Candida species.3 The process of plaque formation on natural teeth and on the denture surface is similar.Plaque consists of various microbes, mostly bacteria and fungi, and this is considered to be of greater significance as it can lead to a series of soft tissue changes.4 Microbial contamination of acrylic denture surfaces occurs very rapidly and clings to the resin surfaces, increasing the risk of denture-induced stomatitis.5 The denture base acts as a physical biofilm reservoir and favors greater expression of virulence factors.6 Microbes can persist within the micropores on the denture surface, as these areas are often not effectively eliminated by mechanical or chemical cleaning methods.7
Authors: Gajapathi Balaraman, Yogesh PB, Rahmath Shameem Shafiullah, Bharanija Kalidasan, Joanna Gracy P, Farhin Fathima
Institution: Meenakshi Ammal Dental College and Hospital
Language: English
Subfield: Orthodontics
Field: Dentistry
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W4412964336