The Effect of Smoking on Felspathic Porcelain and Zirconia Crowns

The use of ceramics in restorative dentistry is highly popular due to their biocompatibility, pleasing aesthetics, insolubility, and hardness. However, cigarette smoking remains widespread and significantly impacts the long - term aesthetic outcomes of restorations. This study investigates the color stability and stainability of feldspathic porcelain and zirconia crowns in their polished and glazed states, with particular focus on exposure to cigarette smoke. The study compares color changes between these two materials using the Vita Shade system. Forty patients were included, and their crowns were assessed for color changes over time. The findings indicate that both materials experience significant color shifts, with smoking being a notable contributing factor. The study highlights the need for further research on color stability in the context of new dental materials.