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Effect Of Prophylactic Pastes On Surface Roughness And Gloss Of Esthetic Dental Restorative Materials, Thani Alsharari
Effect Of Prophylactic Pastes On Surface Roughness And Gloss Of Esthetic Dental Restorative Materials, Thani Alsharari
Student Theses, Dissertations and Capstones
Objective: To evaluate the average surface roughness (Ra) and gloss (GU) of four different commonly used ceramics, four resin composites and human enamel after application of four different types of prophylactic pastes. Material and methods: A total of two hundred and forty specimens, composed of four types of ceramics and four types of resin composites were prepared to test the hypothesis. Twenty specimens were assigned to the first two ceramic groups: Lithium disilicate (LiSi2), and Feldspathic ceramic (FP). The third ceramic group, Zirconia (Zi) included one-hundred and twenty specimens divided into two groups of sixty specimens each (IPS e.max ZirCAD …
Evaluation Of Microshear Bond Strength Of Light-Cured Composite For Cementation Of Ceramic Veneer, Khalid Motlaq
Evaluation Of Microshear Bond Strength Of Light-Cured Composite For Cementation Of Ceramic Veneer, Khalid Motlaq
Student Theses, Dissertations and Capstones
Brief background and goal/ research question: Ceramic restorations were introduced as indirect restorative materials that combine high esthetics with superior mechanical properties. However, an important requirement for successful function of these restorations is adequate adhesion between the restoration material and tooth structure. The use of CAD/CAM restorations is steadily increasing, proper function and longevity of these restorations depends on good adhesion to the underlying substrate as well as operator technique. Preheated composite has been recommended by some clinicians and investigators for the adhesive luting of porcelain laminate veneers based on its good marginal adaptation and perceived superior mechanical durability when …
Effect Of Ceramic Thickness On The Final Color Of Veneer Restorations, Zainab M. Alsadah
Effect Of Ceramic Thickness On The Final Color Of Veneer Restorations, Zainab M. Alsadah
Student Theses, Dissertations and Capstones
Background: The integration of ceramic veneer thickness and substrate color are very challenging factors that dentists and lab technicians should control to achieve a good color match. The reproduction of a natural and homogenous color can be laborious when laminate veneers of 0.4 to 1.2 mm thick are cemented over a dark underlying substrate. Objective: The purpose of this in vitro study was to investigate the association of different ceramic veneer thicknesses cemented on different tooth substrate colors and its influence on final color match of ceramic veneers. Material and methods: Ninety slices IPS e-max CAD (Ivoclar Vivadent, Amherst, NY, …