| dc.description.abstract | Denture base is the part of the denture that is in contact with the soft tissues of the mouth underneath, which serves to correct mastication, improve facial aesthetics, receive pressure from the supporting teeth or residual tissue of the alveolar bone and a place to attach other denture components. Denture maintenance is needed to maintain the cleanliness of dentures and oral cavity tissues that can be done both herbal and non-herbal, namely chlorhexidine. Castor leaf (Ricinus communis) can be an alternative as an herbal denture disinfection material because it contains active compounds that are known to inhibit the growth of Candida albicans, such as flavonoids, saponins, tannins, and phenol compounds that can increase surface roughness. The purpose of this study was to determine the effect of heat cured acrylic resin denture base disinfection with castor leaf extract (Ricinus communis) 50% on surface roughness and impact strength. The design of this study is experimental laboratory. Research method by disinfection of heat cured acrylic resin denture base sample with castor leaf extract (Ricinus communis) 50% to see the value of surface roughness and impact strength after disinfection. The results were tested using univarian test and one way Anova test. The average surface roughness of heat cured acrylic resin after disinfection with castor leaf extract (Ricinus communis) 50% (C1) is 0.121 ± 0.041μm, disinfection with chlorhexidine (B1) is 0.105 ± 0.016 μm, disinfection with aquades (A1) is 0.088 ± 0.012 μm simulation 1 year. Disinfection with castor leaf extract (Ricinus communis) 50% (C2) was 0.137 ± 0.036 μm, disinfection with chlorhexidine (B2) was 0.140 ± 0.053 μm, disinfection with aquades (A2) was 0.127± 0.015 μm simulation 2 years. The average impact strength of heat cured acrylic resin denture base after disinfection with Castor Leaf Extract (Ricinus communis) 50% (C1) was 17.60 ± 0.894 J/mm2disinfection with chlorhexidine (B1) was 18.60 ± 5.128 J/mm2, disinfection with aquades (A1) was 18.20 ± 2.588 J/mm2 simulation 1 year. After disinfection of Assumption 2 years disinfection with castor leaf extract (Ricinus communis) 50% (C2) is 15.40 ± 2.966 J/mm2, disinfection with chlorhexidine (B2) is 17.40 ± 3.130 J/mm2, disinfection with aquades (A2) is 16.00 ± 0.707 J/mm2 simulation 2 years. One way Anova test results showed the effect of disinfection there was the effect of disinfection of heat cured acrylic resin with castor leaf extract (Ricinus communis) 50% and chlorhexidine 0,2% on surface roughness with a value of p = 0.025 1 year simulation and significance of p = 0.015 for 2 year simulation (p<0.05). There was no effect of heat cured acrylic resin denture base disinfection with castor leaf extract (Ricinus communis) 50% and chlorhexidine 0,2% on impact strength with with p = 0,947 value of 1 year simulation and p=0,422 significance of 2 years simulation (p>0.05). Based on the values obtained in this study, it can be concluded that 50% of castor leaf extract (Ricinus communis) for 1 year simulation has higher surface roughness than chlorhexidine and lower impact strength values than chlorhexidine, and castor leaf extract (Ricinus communis) 50% for a 2 year simulation has lower surface roughness than chlorhexidine and lower impact strength than chlorhexidine but is still within standard limits so that the use of castor leaf extract (Ricinus communis) 50 % as a disinfecting agent can be used both at 1 year and 2 year | en_US |
