Effects of Different Glaze Treatments on the Optical Properties and Roughness of Lithium Disilicate Ceramics
Journal Title: Cumhuriyet Dental Journal - Year 2019, Vol 22, Issue 1
Abstract
Objectives: To investigate effects of different glaze procedures on the colour, translucency, and roughness of lithium disilicate (LDS) ceramics after short-term ageing.Materials and Methods: Eighteen LDS specimens (thickness: 0.6 mm) were divided into three groups (paste (EP), spray (ES), and powder–liquid glaze (EL)) based on the type of glaze treatment (n=6). After glaze firings, specimens were thermally aged (5000 cycles). Before and after thermocycling, the colour, translucency, and roughness values of the specimens were measured. Before and after thermocycling, the translucency and roughness data were analysed using a one-way analysis of variance (ANOVA) and compared using a Wilcoxon signed-rank test. Changes in colour, translucency, and roughness data were analysed using one-way ANOVA, and the correlations between them were analysed using Spearman’s correlation analysis (p=.05).Results: The EL group showed the highest and clinically unacceptable colour change value (p≤.005). Before and after ageing, the EL group exhibited higher translucency than the other groups (p<.001), and the EL and EP groups exhibited higher roughness values than the ES group (p≤.001). Wilcoxon signed-rank test results showed that although a significant difference between the initial and final translucency values was observed in the EL group (p=.028), no significant differences between the initial and final roughness values were observed in each group. Only in the EL group, a significant correlation was found between the colour and translucency change values (r=0.943, p=.005).Conclusions: After short-term ageing, based on the evaluation of the LDS ceramics' colour and translucency changes, ES and EP treatments are preferable for glazing. When dentists select a material (EP, EL, ES) for glazing LDS ceramics, they should consider the effects of this material on the optical properties and surface roughness of LDS ceramics.
Authors and Affiliations
Meryem Gülce Subaşı, Gülce Alp
Keywords
Related Articles
- EP ID EP481391
- DOI 10.7126/cumudj.500975
- Views 89
- Downloads 0
Comparison of Anxiety and Perception Levels of Patients Undergoing Initial Periodontal Treatment Using Different Instruments
Objectives The aim of this study is to compare perception and anxiety levels of patients who are received different anesthesia and instruments prior to periodontal treatment.Material and MethodsThe study performed in the...
Effects of Speed Sintering on Multilayered Monolithic Zirconia
Objective:In dentistry, different products are being developed in order to shorten the chairside but the interactions between these materials needs further investigations. This study aims to investigate the two different...
A HISTOMORPHOMETRIC EVALUATION OF THE EFFECTS OF PLATELET-RICH FIBRIN AND RIFAMYCIN IN COMBINATION WITH AN ALLOGRAFT ON BONE AUGMENTATION WITH SIMULTANEOUS IMPLANT PLACEMENT IN RABBIT TIBIA
Objective: To evaluate the potential of platelet-rich fibrin (PRF) and rifamycin to enhance guided bone augmentation with simultaneous high-profile dental implant placement in a rabbit tibia model. Materials and Method...
Radiographic Investigation of The Relationship Between Dental Malocclusions And Dental Anomalies on the Turkish Population
Objectives: The aim of this study was to investigate the relationship between various dental anomalies and dental malocclusions/vertical growth patterns. Materials and Methods: The study was carried out on panoramic rad...
Evaluation of Caffeic Acid Phenethyl Ester Administration in Chronically Stressed Rats with Experimental Periodontitis.
Objectives: The aim of the present study was to investigate the therapeutic effects of systemic caffeic acid phenethyl ester treatment on oxidative stress and alveolar bone destruction in lipopolysaccharide (LPS)-induced...