<![CDATA[Background: Cigarette smoke may cause discoloration of denture bases, thereby reducing their aesthetic quality. Therefore, an effective denture cleansing solution is needed. Commercial effervescent denture cleansers are commonly used; however, they are relatively expensive and not easily accessible for some communities.Aim: To evaluate the effect and effectiveness of sodium bicarbonate solution combined with apple cider vinegar at various concentrations in preventing discoloration of heat-cured acrylic resin denture bases exposed to cigarette smoke.Methods: This study used a laboratory experimental design with a post-test control group design. The samples were divided into five groups, consisting of two control groups and three treatment groups: sodium bicarbonate combined with 1 percent, 10 percent, and 20 percent apple cider vinegar. Each group was observed for 21 days. Color changes were measured daily, and the results were calculated using the Delta Eab formula and then averaged.Results: Significant differences were found between the negative control group and both the positive control group and the treatment groups. The findings indicated that the cleaning solution containing sodium bicarbonate and apple cider vinegar at concentrations of 1 percent, 10 percent, and 20 percent was effective in inhibiting discoloration of heat-cured acrylic resin denture bases exposed to cigarette smoke.Conclusion: Immersion of heat-cured acrylic resin denture bases exposed to filter cigarette smoke in a denture cleanser containing sodium bicarbonate and apple cider vinegar affected the inhibition of discoloration. The most effective concentration was 50 percent sodium bicarbonate combined with 20 percent apple cider vinegar.]]>
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