EFFECT OF DENTIN PRETREATMENT REGIMENS USING GRAPE SEED EXTRACT ON MICROSHEAR BOND STRENGTH AND COLOR STABILITY | ||||
| Egyptian Dental Journal | ||||
| Article 15, Volume 62, Issue 1 - January (Part 5), January 2016, Page 1177-1188 PDF (1.69 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/edj.2016.95436 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Maha E. Elkorashy1; Dalia I. Sherief2 | ||||
| 1Lecturer, Operative Dentistry Department, Faculty of Dentistry, Fayoum University | ||||
| 2Lecturer, Biomaterials Department, Faculty of Dentistry, AinShams University | ||||
| Abstract | ||||
| Objective: To investigate the effect of 10% and 15% Proanthocyanidin (PA) rich grape seed extract (GSE) applied for 60s and 120s and removed either by wiping or rinsing on microshear bond strength (µSBS) and color stability (ΔE). methods: Sound bovine incisors were used in the study. The labial surfaces were ground to expose flat dentine surfaces. The specimens were divided into 9 groups; control group without any pretreatment and 8 groups pretreated with 10 % and 15% GSE, applied for 60s and 120s and then removed either by wiping with wet cotton or rinsing with water. Microshear bond strength (µSBS) was tested using a universal testing machine at a cross head speed of 0.5mm/min. A spectrophotometer was used for color measurement (ΔE) of the specimens using CIE (L*a*b*). Data were tabulated and statistically analyzed. Results: All pretreatment groups showed significantly higher µSBS values than the control group which showed the lowest value (19.63±3.07). Group VIII showed the highest µSBS value (31.96±2.77) and the highest ΔE (3.14±0.38). All pretreatment groups showed a clinically accepted color change with a ΔE < 3.3. Conclusion: The use of GSE in different regimens improved resin-dentin bond strength and demonstrated clinically accepted color change. The use of 15% GSE applied for 120s and wiped with wet cotton is the recommended regimen. | ||||
| Keywords | ||||
| Grape seed extract; dentin pretreatment; bond strength; color stability | ||||
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