Journal of AdvancedMedical and Dental Sciences Research

Introduction: The success of removable complete or partial denture depends on esthetics, comfort, and function. In an edentulous individual with a complete or a partial denture prosthesis the masticatory load and functional stresses are transmitted to the bone through mucoperiosteum. These functional stresses lead to chronic soreness, pathologic changes to oral tissues, and subsequent bone loss resulting in loss of accurate adaptation of the denture to the underlying tissues. Soft liner materials, when used with ill fitting dentures, are constantly kept in a wet environment of either saliva or denture cleanser that affects their sorption and solubility. These in turn have detrimental effect on other properties. Aim: To evaluate the effect of denture cleanser on sorption and solubility of different soft liners and tissue conditioners. Materials and methods: Metal disc was fabricated to make the mould space for soft liner samples. Four materials were used, long term and short term acrylic liners; long term and short term silicone liners. Each of these were divided into four groups: first control group– all liners were kept in artificial saliva for entire period of study. Second group- liners were immersed daily in cleanser for 2 hour and then transferred to artificial saliva for rest of the day. Similarly samples of third and fourth groups were immersed in cleanser for 6 and 10 hours respectively and transferred to artificial saliva. Sorption and solubility tests were conducted and statistical analysis done. Results: Solubility values of all groups were higher than the quoted ADA specifications. Conclusion: Overall, silicones performed better than acrylics. Long term silicone was most stable. Short term acrylic was most unstable. The 10 hour immersion in denture cleanser caused significantly high sorption and solubility.