Colour changes of two thermoplastic resins used for flexible partial dentures. - Maria Margarida Ferreira Sampaio-Fernandes; João Galhardo; Sandra Campos; Susana João Oliveira; José Carlos Reis-Campos; Roberto C. Stegun; Maria Helena Guimarães Figueiral da Silva (Comput. methods Biomech. Biomed. Eng. Imaging Vis., 2022)