Effect of Alcohol-based and Alcohol-free Mouthwashes on Wettability and Surface Characteristics of Silicone Soft Denture Liners: An In Vitro Study

other mucosal infections.Proper cleaning of the liners is therefore vital to reduce microbial load, maintain oral health, and extend the lifespan of the prosthesis. 8or denture hygiene, mechanical methods such as brushing are commonly recommended. 9However, these techniques may inadvertently damage the soft-liner surface, leading to surface IntroductIonEdentulism, or the loss of natural teeth, significantly impacts the quality of life for millions globally, especially within aging populations. 1 Complete or partial dentures are commonly used to restore function and esthetics, with soft denture liners playing a critical role in improving comfort for those with sensitive or resorbed oral tissues. 2,3These liners, especially those made from silicone-based materials, offer essential cushioning and adaptability, enhancing the fit and reducing discomfort by distributing masticatory forces evenly. 4In contrast to acrylicbased soft liners, which are susceptible to hardening over time due to plasticizer loss, silicone-based liners retain their elasticity and resilience, making them a preferred choice for long-term use. 5ilicone-based liners are particularly beneficial for individuals with irregular or atrophic alveolar ridges, fragile mucosa, or conditions such as bruxism that increase wear on the denturebearing tissues. 6However, maintaining the hygiene and integrity of these liners presents a unique set of challenges.Denture surfaces are prone to biofilm formation, as microorganisms such as Candida albicans and Streptococcus mutans readily colonize the moist, porous environment provided by the liner material. 7If unchecked, this colonization can lead to a range of complications, from unpleasant odors and discoloration to denture stomatitis and 1,2,