Schedule 1 [EO-29] THE INFLUENCE OF ADDING NANOSILICA (THALASSIOSIRA SP DIATOM EXTRACT) ON THE COMPRESSIVE STRENGTH AND TENSILE STRENGTH OF GIC LUTING MATERIAL *Anisah Nabilah Ferry1, Aksani taqwim taqwim1, Mohammad Dharma Utama1, Irfan Dammar Dammar1 (1. Departement of Prosthodontics, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia)