Abstract

IBRAHIM, Y; KHAN, SB  and  KARJIKER, F. Impact of different types of smoking on the discolouration of teeth and nanocomposites. S. Afr. dent. j. [online]. 2025, vol.80, n.7, pp.367-374. ISSN 0375-1562.  https://doi.org/10.17159/sadj.v80i07.19969.

BACKGROUND: Tobacco is a commonly used and misused psychoactive substance OBJECTIVE: Comparing the impact of different methods of smoking tobacco on tooth discolouration and colour stability of 3M^TM Filtek^TM Universal Nanohybrid composite MATERIALS AND METHODS: For this in vitro study, 40 sound premolars and 40 composite discs were randomly divided into 4 groups (N=10 teeth and N=10 composite discs per group). A machine mimicking smoking was utilised, exposing the study groups to tobacco smoke as follows: Group A to cigarette smoke, Group B to e-cigarette smoke, Group C to waterpipe smoke, and Group D was the control group. The study period was over 5 days, completing 10 cycles/day. Two readings were recorded, at baseline and on day 5 for each group. Colour changes for both teeth and composite discs were determined using a stereomicroscope. Statistical analysis included using the two-way mixed measures ANOVA with Bonferroni corrections RESULTS: The darkest colour was shown with cigarette smoke exposure in group A for the teeth and composite discs. A statistically significant difference in change of tooth and composite colours were observed (p-value < 0.001 CONCLUSION: All different tobacco consumption methods contributed some degree to tooth discolouration and composite colour change

Keywords : Cigarette smoking; E-cigarette smoking; Waterpipe smoking; Tooth Staining; Colour Stability; nanocomposite.

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