Nicodemo, César Augusto Zanlorenzi, et al. “Micro-Hardness of Acrylic Resin Utilized for Provisional Crowns: Effect of Different Polymerization Techniques and PH-Cycling”. Brazilian Dental Science, vol. 16, no. 2, June 2013, pp. 44-50, doi:10.14295/bds.2013.v16i2.896.