The teaching staff at Al-Mustaqbal University College, Department of Dentistry, the assistant teacher, Baha Al-Ansari, participated on Wednesday and Thursday 17-18 November 2021 in the Second International AL-Ameed University Conference for Medical Sciences. Where he talked about the effect of adding polyamide micro-particles and nanoparticles of silicon dioxide on some mechanical properties of room-temperature vulcanized silicon flexible for maxillofacial before and after artificial aging.