RENATA DAMAYANTI, 020513498 (2012) KEBOCORAN TEPI RESTORASI RESIN KOMPOSIT HIBRIDA AKIBAT PERENDAMAN DALAM AIR PERASAN CITRUS LIMON BURM f. Skripsi thesis, UNIVERSITAS AIRLANGGA.

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Abstract

Background: Citrus limon burm f. juice (lemon juice) is one of popular beverages because of its benefit. Lemon juice has low pH in about 2,88. Geraldo said that drink low pH beverages can cause composite resin degradation. Since lemon juice has low pH, it might cause microleakage on hybrid composite resin restoration. The influence of lemon juice toward microleakage of hybrid composite resin restoration of the teeth is still unknown so that a research should be conducted. Purpose: To know the microleakage of hybrid composite resin restoration after immersed in lemon juice for 5 minutes a day for 14 days. Method: Two groups of sample i.e. group 1: ten restorated teeth put into desiccator for 14 days, group 2 : ten restorated teeth immersed in lemon juice for 5 minutes a day for 14 days. Each group was stroraged in incubator 35 degrees celcius. Then microleakage was observed with digital microscope. Penetration of methylen blue 0,5% was scored on a scale of 0 to 4 applied in every sample. Result: The data was analyzed with Mann – Whitney Test. There was a significant differences between group 1 and group 2 Conclusion: The immersion of hybrid composite resin restoration in lemon juice for 5 minutes a day for 14 days causes microleakage of hybrid composite resin restoration

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