Original Research Article
Year: 2018 | Month: July | Volume: 8 | Issue: 7 | Pages: 76-83
Color Stability of Resin Composite Restorative Materials Finished/Polished with Different Systems
Ahmad S. Al-Ghamdi1, Mohammed A. Al-Ateeg1, Mohammed G. Al-Otaibi1, Khalid H. Al-Rasheed1, Ahmed F. Al-Otaibi1, Nashaat M. Magdy2
1Intern, College of Dentistry, Prince Sattam Bin Abdulaziz University, KSA
2Assistant Professor of Conservative Dental Science, College of Dentistry, Prince Sattam Bin Abdulaziz University, KSA
Corresponding Author: Nashaat M. Magdy
ABSTRACT
Objective: To evaluate the effect of three different polishing systems on color stability of microfill, nanofill, and nanohybrid resin composites.
Materials and Methods: A total of 120 resin composite discs were prepared in split Teflon mold with dimension of 10 mm diameter and two mm thick. Specimens were equally divided into three groups according to restorative materials (microfill composite A, nanohybrid composite B and nanofill C); 40 specimens for each material (n=40). Ten specimens from each restorative material were remained without finishing/polishing and used as a control group. Color measurement of all specimens (unpolished, polished) were recorded before & after mechanical tooth brushing by spectrophotometer.
Results: There was statistically significant difference among the tested composite materials and polishing method (P <0.001). The nanofilled resin composite and the liquid polisher presented the least ΔE values. After tooth brushing, mean ΔE values was increased for three tested resin composite.
Conclusion: Nanofilled composite and liquid polisher showed the least color change between the tested resin composites and polishing systems.
Key words: Color stability, Nano-filled resin composite, Nano-hybrid resin composite & Finishing/Polishing.