Effects of Monomer Composition of Urethane Methacrylate Based Resins on the C=C Degree of Conversion, Residual Monomer Content and Mechanical Properties oleh Codruta Sarosi, Marioara Moldovan, Andrada Soanca, Alexandra Roman, Timea Gherman, Ancuta Trifoi, Andrea Maria Chisnoiu, Stanca Cuc, Miuta Filip, Georgiana Florentina Gheorghe, Radu Marcel Chisnoiu