Effect of Lime Leaves (Citrus aurantifolia) on Color Changes and Hardness of Nanohybrid Composite Resin Dewi Liliany Margaretta (a), Tansza Setiana Putri (a*), Regina Alexandra (b)
a) Department of Dental Materials, Faculty of Dentistry, Universitas Trisakti, Indonesia
*tansza[at]trisakti.ac.id
b) Undergraduate Student, Faculty of Dentistry, University Trisakti, Indonesia
Abstract
Background: Nanohybrid resin composite is a combination of nanosized and microsized particles, engineered to enhance both strength and aesthetics in dental restorations. However, resin composites can be prone to discoloration and a reduction in surface hardness when exposed to acidic environments. Lime leaves (Citrus aurantifolia), utilized in cooking and known for their health benefits, have a pH range of 4.78 - 5.23. Due to its acidic properties, it can affect the composite resin characteristics. Objective: To analyze the effect of lime leaves (Citrus aurantifolia) on color changes and hardness of nanohybrid composite resin. Method: The research method was laboratory experimental with a post-test control group design with a sample size of 30 nanohybrid composite resin Filtek Z250 XT A3 shade were shaped cylindrical with a 10 mm diameter and a 2 mm height using a stainless steel mold which was divided into 3 groups. The treatment group was immersed for 30 minutes for 12 and 15 days. Samples in control group were immersed in artificial saliva for 24 hours. The color change was measured using the VITA Easyshade V and hardness using a Vickers Microhardness Tester. Results: The Mann Whitney test results of color changes delta-E and delta-L p= 0.000, delta-H p= 0.003, hardness p=0.004 and control p=0.002. Post Hoc Tukey have significant differences of changes color delta-C p=0.002 compare to control group. Conclusion: The color change and hardness of the nanohybrid resin composite decreases, and overall color change occurs after immersion in lime leaves for 12 and 15 days.
Keywords: Lime leaves- Nanohybrid composite resin- Color change- Hardness
