Influences of TiO2 and SiO2 nanofillers on the hardness and surface roughness of maxillofacial silicone elastomers after two years of outdoor tropical weathering: An in vitro study. - Mousa M; Elmarhoumy B; Salloum M; Zwiri A; Sghaireen M; Bahattab T; Almutairi A; Almuzaini N; Abdullah J (PloS one, 2026)