Influence of Thermocycling on the Surface Topography and Bacterial Adhesion of Different Computer-aided Design/Computer-aided Manufacturing Ceramics after Immersion in Saudi Coffee
Year: 2026
Type: article
Abstract: integrity over time.4 Thermocycling serves as a vital laboratory method to simulate this aging process and predict a restoration's performance.5,6 Surface topography affects esthetic and functional properties of ceramic restorations, including light reflection, stain retention, IntroductIonThe integration of computer-aided design/computer-aided manufacturing (CAD/CAM) in restorative dentistry represents a paradigm shift and enables the precise fabrication of highperformance restorations.1 Materials include feldspathic leucitereinforced glass-ceramics, multilayer zirconia, zirconia-reinforced lithium silicate, and lithium disilicate glass-ceramics.Although feldspathic ceramics were historically preferred for anterior applications because of their optical properties and high survival rates, zirconia-based systems are now preferred in prosthodontic workflows because of their superior fracture resistance and a higher 5-year survival rate for zirconia crowns (96.6%) versus traditional ceramics (94.5%). 2 The long-term performance of CAD/CAM ceramic restorations depends on their ability to withstand dynamic oral stresses.Cyclic thermal fluctuations cause rapid temperature changes (5-55°C) up to 50 times daily.3 This repeated expansion and contraction generates mechanical stress, which can initiate microcracks and ultimately degrade the restoration's surface
Source: World Journal of Dentistry
Author: Mohammad A Alamri
Institution: King Khalid University
Language: English
Subfield: Orthodontics
Field: Dentistry
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W7129230288