Yawar Ali Abidi, Sameer Quraeshi, Syed Ahmed Omer, Murtaza Raza Kazmi, Saqib Rashid.
Effect Of Different Lipsticks On Nanofilled Composite Resin At Different Contact Time After Photoactivation.
J Pak Dent Assoc Jan ;23(3):95-9.

OBJECTIVES: To evaluate the effects of staining of two types lipsticks (one with common fixer other with ultra fixer) on the color stability of resin-based composite restorative material at different time intervals. METHODOLOGY: Ninety disc-shaped specimens (10×2 mm) were prepared from Nanofilled composite. Filtek Supreme XT (3M ESPE, St. Paul, MN, USA). Discs were polished and divided in to 9 groups according to time elapsed after curing (0 hour, 1 hour, and 24 hours) and contact with different lipstick (lipstick with common fixer, lipstick with ultra fixers). Color measurements (L*, a*, b*) of each specimen were taken with a spectrophotometer (Data color; SF 600; Plus-CT; USA) according to the CIELAB color scale. For control group discs did not have any contact with lipsticks. For lipsticks group discs were stained at different time intervals (0 hour, 1 hour and 24 hours). Color analysis was done before and after staining. Discs were stored in artificial saliva at 370c. STATISTICAL ANALYSIS: The color change value E* were calculated. Data were analyzed using a 2-way analysis of variance with repeated measurement at a significance level of 0.05 and Tukey’s Honestly Significant Difference (HSD) for multiple comparisons. RESULTS: All specimens displayed color changes after curing, and there was a statistically significant difference between both lipsticks and time periods (P<0.05); however, the change was not visually perceptible (E*<3.3) for control group and group with common fixer. Color change for group with ultra fixer was visually perceptible (E*>3.3). CONCLUSIONS: Groups with ultra fixer caused greater staining than other groups. Therefore, lipstick wearers should be warned to avoid the use of lipsticks with ultra fixer after receiving composite restoration in anterior teeth for at least 24 hours.

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