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Color Stability and Micro-Hardness of Bulk-Fill Composite Materials after Exposure to Common Beverages.

ABSTRACT: OBJECTIVES:To assess the color stability and surface microhardness of Bulk-Fill composite materials available in the Saudi Arabia market. METHODS:Five composite materials (Filtek Z350, Filtek Bulk-Fill, Tetric N-Ceram Bulk-Fill, Sonic Fill 2, and SDR) were investigated. Samples (n = 20; 10 mm in diameter and 2 mm in thickness) were fabricated using a stainless-steel mold and were immersed in tea, coffee, berry juice, and distilled water (control). Baseline (T0) shades of specimens were recorded using a spectrophotometer and after 10 (T1), 30 (T2), 60 (T3), and 90 days (T4) of immersion. Measurements were obtained against a black background and CIE L*a*b* data was used to calculate ?E for each group. Vickers microhardness values were obtained at T0 and T4. Data was analyzed using mixed model repeated measure ANOVA at 0.05 significance level. RESULTS:Time, material, and solution effects have statistically significant effect on ?E. Tea was the most staining solution. Z350 was associated with the highest ?E values while SDR showed the lowest values. No other materials showed significant difference between each other. Solutions were statistically different from each other. All materials were different from each other regarding microhardness. CONCLUSION:Bulk-Fill materials showed more color stability but lower microhardness values compared to universal resin control.

SUBMITTER: Bahbishi N

PROVIDER: S-EPMC7040906 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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Color Stability and Micro-Hardness of Bulk-Fill Composite Materials after Exposure to Common Beverages.

Bahbishi Nora N Mzain Waad W Badeeb Bayan B Nassar Hani M HM

Materials (Basel, Switzerland) 20200209 3

<h4>Objectives</h4>To assess the color stability and surface microhardness of Bulk-Fill composite materials available in the Saudi Arabia market.<h4>Methods</h4>Five composite materials (Filtek Z350, Filtek Bulk-Fill, Tetric N-Ceram Bulk-Fill, Sonic Fill 2, and SDR) were investigated. Samples (<i>n</i> = 20; 10 mm in diameter and 2 mm in thickness) were fabricated using a stainless-steel mold and were immersed in tea, coffee, berry juice, and distilled water (control). Baseline (T<sub>0</sub>) s ...[more]

PMID: 32050415

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Project description:BackgroundDespite recent advances in restorative dentistry adhesive restorations may cause postoperative sensitivity which leads to restoration failure.AimThis study aimed to compare and evaluate the incremental and bulk fill resin Composite postoperative sensitivity in class II posterior restorations bonded with two adhesive systems (self-etch and etch-and-rinse).MethodsSixty patients were randomly selected, their age range from twenty-five to forty years old, divided into two groups according to the packing technique of resin composite material; incremental Tetric Evoceram and Tetric Evoceram bulk-fill resin composite. Thirty patients (n = 30) for incremental Tetric Evoceram resin composite restorations and according to the adhesive systems used they were equally divided (n = 15 teeth).Thirty patients (n = 30) for Tetric Evoceram bulk-fill resin composite restorations and according to the adhesive systems used (etch and rinse or self-etch), they were equally divided (n = 15 teeth). Post-operative pain assessed at 24 hours, 1 week and 1 month using the Visual Analog Scale Score (VAS). Each patient was instructed to put a mark on the VAS line at home to point out the intensity of pain at each assessment period. The problem of measuring the pain that pain tolerance of individuals may be different from the others. This may be due to different reasons, and it is not always because of a problem in the restoration.ResultsAfter 1 day, 1 week as well as 1 month, no statistically significant disagreement between the two resin composite types using self-etch adhesive strategy and total-etch adhesive strategy. Also, when the two adhesive systems were compared using Bulk Fill resin composite and incremental Nano resin composite no statistically significant disagreement between the two adhesive systems after 1 day, 1 week as well as 1 month.ConclusionThe post-operative hypersensitivity is related to many factors as the procedure of cavity preparation, adhesive approach, and type of resin composite used and placement technique of the resin composite.

Dataset Information

Color Stability and Micro-Hardness of Bulk-Fill Composite Materials after Exposure to Common Beverages.

Publications

Color Stability and Micro-Hardness of Bulk-Fill Composite Materials after Exposure to Common Beverages.

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