Pengaruh Jumlah dan Ukuran Nanopartikel Cangkang Telur terhadap Sifat Fisik Resin Akrilik Swapolimerisasi pada Gigi Tiruan Cekat Sementara

Abstract

Temporary fixed restoration is defined as fixed denture to improve esthetic, stabilization and or teeth function for a limited period of time, which will be replaced by definitive restoration. Temporary fixed restoration is critical in full mouth rehabilitation, which involves some teeth preparation, especially provisional for oral cavities for a relatively long time (6-12 weeks). In some cases, such as crown lengthening, it usually takes 2-3 months until the periodontal tissue is healthy again and permanent fixed denture can be fitted. The same thing with implant placement, which needs 3 to 6 months of osseointegration before definitive restoration placement. The most used material for temporary fixed restoration is acrylic resin. It has good esthetic, easy of use, cheap, has many colors, and good wear resistance. However, it is easy to fracture and absorbs water and has poor color stability. To overcome this shortage, especially to strengthen acrylic resin for long term use, reinforcing material is being added, such as eggshells. This study aims to determine the effect of adding eggshell nanoparticle to self-polymerized or self-cure acrylic resin material on water sorption and color stability of temporary fixed restoration. This type of research is an experimental laboratory with post-test only control group design. Research starts off by producing 5%, 10% and 15% eggshell nanoparticles with 1-50 nm and 51-100 nm sizes to be added to self-cure material of temporary fixed restoration, then tested. Water sorption was tested by weighing sample using digital analytics balance while color stabilization was measured using spectrophotometer. Data were analyzed using ANOVA, LSD, T-test and DSC. Results show significant effect of the addition of 5% and 10% eggshell nanoparticles with sizes of 1-50 nm and 51-100 nm to self-cure acrylic resin on water sorption and color stability of temporary fixed restoration with p<0,05. This study also indicates that there is no effect of the size of eggshell nanoparticle 1-50 nm and 51-100 nm to self-cure acrylic resin on water sorption and color stability of temporary fixed restoration with p>0.05. In conclusion, the addition of 5% and 10% eggshell nanoparticles to interim acrylic resin materials can be used in cases that require a long time before definitive denture.