HYBRID EVENT: You can participate in person at Singapore or Virtually from your home or work.

8th Edition of International Conference on
Dentistry and Oral Health

March 25-27, 2024 | Singapore
Dental 2023

Fatma Makkeyah

Fatma Makkeyah, Speaker at CE Accredited Dental Conferences
The British University in Egypt, Egypt
Title : Surface roughness and colour stability of lithium disilicate ceramics after polishing with different intraoral polishing systems

Abstract:

Purpose: To investigate the effect of two polishing systems on the surface roughness and color stability of lithium disilicate ceramic.
Materials and Methods: Forty disc-shaped lithium disilicate samples were constructed and cemented into a cavity prepared onto the labial surface of freshly extracted bovine teeth; The samples were divided into four groups (10 samples per group); C: Control, SS: Scaling only, SE: Scaling followed by polishing using Eve Diapro lithium disilicate polishers, SD: Scaling followed by polishing using Diatech ShapeGuard ceramic polishing plus kit. The surface roughness was measured before scaling, after scaling, and finally after the polishing procedure. The color parameters were measured before and after the staining procedures using VITA Easyshade Advance 4.0 according to the CIE L*a*b* color order system.
Results: Both polishing systems significantly decreased the surface roughness of the disilicate ceramic and was accompanied by a significant decrease in the color change. However, the color change in the polished group was significantly higher than that of the control glazed group.
Conclusion: The surface roughness and color stability of lithium disilicate ceramics can be enhanced by recent polishing systems, however, it shows different topography than the glazed ceramic surface.

Biography:

Fatma Makkeyah is a lecturer of Fixed Prosthodontics at the Faculty of Dentistry, The British University in Egypt. She has experience in dentistry since graduation from the Faculty of Oral and Dental Medicine, Cairo University in 2002. She has been working in dental education for more than 15 years starting as a demonstrator of fixed prosthodontics at the Faculty of Dentistry, Misr University for Science and Technology, then as an assistant lecturer of fixed prosthodontics at the Faculty of Dentistry, The British University in Egypt.

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