Kazemi, H.; Torshabi, M.; Zamanian, A.; Rezaei Esfahrood, Z. Effect of Nicotine on Attachment and Proliferation of Human Gingival Fibroblasts on Zirconia and Titanium Surfaces: Nicotine Effects on Cellular Behavior on Zirconia and Titanium. Regen Reconstr Restor 2025, 10.