Argirov, Rusi, and Petia Pechalova. “Deflection of Needles, Used for Local Anesthesia in the Dental Practice – Comparative Study”. Proceedings of the Bulgarian Academy of Sciences 77, no. 8 (August 29, 2024): 1236–1242. Accessed November 13, 2024. https://www.proceedings.bas.bg/index.php/cr/article/view/599.