Work

Effect of tobacco and other habitual dietary staining agents on the optical properties of lithium disilicate molar crowns: A laboratory study

Year: 2025

Type: article

Abstract: INTRODUCTION: The treatment of choice for posterior teeth is full-coverage crowns, but these materials should not be color-affected by external factors such as tobacco use. This laboratory study aimed to evaluate the mean color change (ΔE*) values of lithium aluminum disilicate (LAD) full anatomical ceramic crowns after staining in different adverse materials consumed in different countries worldwide. METHODS: tests were used to assess significance differences between groups. The significance level was set at p<0.05. RESULTS: The ΔE* changed after immersion in all solutions except for the control group. The highest average ΔE* values and standard deviation were observed with yerba mate 6.3 ± 2.0, followed by shammah 4.6 ± 0.9, whereas the lowest ΔE* was recorded for the mixture of fruit juice 3.2 ±1.3. One-way ANOVA test showed a significant difference between the group of yerba mate, with p<0.001. Pearson's correlation coefficient test was used to assess the statistical relationship of ΔE* among groups. A highly positive significant correlation was found between shammah and Nescafe (r=0.798). A medium correlation was found between khat with yerba mate (r=0.520) and snuff and control groups (r=0.474), without significant differences. CONCLUSIONS: The overall recorded ΔE* values for LAD full anatomical ceramic crowns following 2 weeks of staining in different staining media were marginally higher than the clinically acceptable values except for the fruit-juice group.

Source: Tobacco Induced Diseases

DOI: 10.18332/tid/208433