Effect of different beverages and storage period on bis-acryl color stability using two assessment methods - Bastos, Natalia Almeida; Bitencourt, Sandro Basso; Mello, Igor Peixoto de; Abreu, Celina W. de; Bombonatti, Juliana Fraga Soares; Silva, Mariana M. (Journal of Esthetic and Restorative Dentistry, 2020)