A base-line study of the wear of burs used for chairside milling of ceramic crowns of different hardness: effect on internal fit and surface roughness. S. Afr. dent. j. [Internet]. 2020 Nov. 1 [cited 2024 Nov. 22];75(10):534-40. Available from: https://journals.assaf.org.za/index.php/sadj/article/view/10516