Evaluation of Color Change Before and After Polymerization of Laminate Veneer Restorations

Özişçi, Özlem; Küçükeşmen, H. Cenker

doi:10.4103/njcp.njcp_1814_21

Cited by 3 publications

(3 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The color change seen in Group CH might be attributed to the presence of unreacted camphorquinone molecules, which tend to turn yellow after 24 hours of light polymerization. 31 This justified our results, which showed increase in (b*) positive value (yellowness) in CH Group. It might also be due to the type of restorative material, where translucent zirconia can limit the amount of curing light transmission compared to lithium disilicate, subsequently significantly affecting the degree of resin-cement conversion leaving unreacted camphorquinone molecules.…”

Section: After Cementationsupporting

confidence: 90%

Effect of resin cement type on the final color of high translucent zirconia before and after thermocycling: an in vitro study.

Alnaggar,

Hassanin,

Ezzat

2024

Advanced Dental Journal

View full text Add to dashboard Cite

Aim: Advancements in dental cements were made to enhance bonding to zirconia. However, their effect on the color stability of the restoration is still unclear. The purpose of this study was to compare the effect of amine-free MDP-containing dual-cured self-adhesive resin cement versus light-cured resin cement on the final color of monolithic high translucent zirconia before and after thermocycling. Subjects and methods: Twenty high translucent zirconia discs, shade A2 (0.5 mm thickness, 10 mm diameter) were obtained, air abraded and randomly divided in two groups (n=10) according to the cement type used; Group CH: cemented by choice 2 (light-cured resin cement; control), Group ZC: cemented by ZR-Cem (amine-free MDP-containing dual-cured self-adhesive resin cement; intervention). Specimens were cemented to PMMA discs and subjected to thermocycling. Color was assessed after cementation and after thermocycling using laboratory spectrophotometer. After testing for normality, collected data revealed parametric distribution and were expressed as mean and standard deviation. Data were statistically analyzed at a level of significance (P ≤ 0.05). Results: After cementation, color change was significantly lower in Group ZC (ΔE= 2) than in Group CH (ΔE= 3.8). However, after thermocycling, it was significantly higher in Group ZC (ΔE= 3.63) than Group CH (ΔE= 2.47), being within the clinically accepted range. Conclusion: Resin cement type and aging affect the final color of thin high translucent zirconia restorations. Light-cured resin cement has more resistance to artificial aging compared to amine-free MDP-containing dual-cured resin cement.

show abstract

Section: After Cementationsupporting

confidence: 90%

Effect of resin cement type on the final color of high translucent zirconia before and after thermocycling: an in vitro study.

Alnaggar,

Hassanin,

Ezzat

2024

Advanced Dental Journal

View full text Add to dashboard Cite

show abstract

“…The aesthetic outcomes can be improved because of the high level of biomimetics in adhesive materials. For example, Ozisci et al studied the effect of translucent adhesive resin cement on the final color of ceramic laminate veneer restorations before and after polymerization [77]. The in vivo study results suggest that the effect of light polymerization on the translucent resin cement is crucial to determining the final color of the restoration during shade selection and fabrication.…”

Section: The Color Effect Of Micro-veneermentioning

confidence: 99%

Research Progress and Clinical Application of All-Ceramic Micro-Veneer

Jiang²,

Yang

et al. 2023

Materials

View full text Add to dashboard Cite

Anterior teeth problems affect the patient’s daily eating, communication, social activities, self-confidence, and mental health. The trend in dentistry is to address anterior tooth problems with minimally invasive and aesthetic treatments. With the development of adhesive materials and ceramics, micro-veneers have been proposed as an alternative treatment for enhancing the aesthetic appearance and avoiding unnecessary tooth reduction. A micro-veneer is a veneer that can be cemented to the surface without or with minimal tooth preparation. These benefits include no need for anesthesia, postoperative insensitivity, good adhesion to enamel, reversibility of treatment, and higher patient acceptance. However, the micro-veneer repair is suitable only for specific cases and must be strictly controlled regarding indication. Treatment planning is a crucial step to achieving functional and aesthetic rehabilitation, and following the clinical protocol is helpful for the longevity and success of micro-veneer restorations. However, more precise and predictable tooth preparation methods, such as minimally invasive microscopic tooth preparation and digitally guided veneer preparation, are recommended rather than the traditional free-hand method. Therefore, this paper clarifies micro-veneers and compares them with other restorations to gain a deeper and more comprehensive understanding. The authors also review indications, materials, cementation, and effect evaluation of micro-veneers to provide clinicians with valuable information. In conclusion, micro-veneers are minimally invasive treatments that provide good restoration results when used appropriately and are worthy of promotion for the aesthetic restoration of anterior teeth.

show abstract

“…L* measures the color’s luminance or lightness, a* evaluates its red-green content, and b* evaluates its yellow-blue content [ 17 ]. Thus, the mean color change (ΔE*) values can be determined using L*a*b* [ 18 , 19 ]. Elamin et al described the use of digital spectrophotometry units in analysis the shade guided among different groups of patients [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Comparison of the Degree of Staining of Computer-Aided Design-Computer-Aided Manufacture (CAD-CAM) Ceramic Veneers by Green Tea, Coffee, and Coca-Cola Using a Digital Spectrophotometer

Wadei

2023

Med Sci Monit

View full text Add to dashboard Cite

Background The majority of dental professionals currently recognize lithium disilicate E-max ceramic veneers as a the most widely used, conservative, and effective cosmetic materials in dentistry. This study aimed to compare the degree of surface changes – roughness (Ra), depth (Rz), and mean color changes (Δ E 00 ) – of computer-aided design-computer-aided manufactured (CAD/CAM) ceramic veneers materials of varying thicknesses caused by staining by green tea, coffee, and Coca-Cola using digital spectrophotometer. Material/Methods This study was conducted at King Khalid University, College of Dentistry. Lithium disilicate glass ceramic (LDGC) material was used to create 60 rectangular slices using the CAD/CAM system. The material thickness and the type of beverage were measured. The specimens were immersed in beverages according to the manufacturer’s instructions. Specimen description and tomography were completed with a 3D noncontact surface metrology using interferometry. The “VITA Easy-Shade” spectrophotometer was used to measure Δ E 00 . It was recorded after 2 weeks for different material thicknesses after immersing samples in green tea, coffee, and Coca-Cola staining materials. Results Significant changes in ceramic thickness were found in Ra and Rz of 0.07 and 1.00 mm after 14 days of staining. Coca-Cola showed a significant difference in Ra and Rz with 1.00 mm thickness measurement compared to the 0.07 mm group with ≤ of 0.05, which was considered statistically significant. Highest Δ E 00 were recorded among samples stained by Coca-Cola, followed by coffee, for both thicknesses. Conclusions Those findings support previous studies using spectrophotometric analysis of staining of CAD-CAM ceramic veneers that Coca-Cola followed by coffee resulted in the greatest color Δ E 00 change.

show abstract

Evaluation of Color Change Before and After Polymerization of Laminate Veneer Restorations

Cited by 3 publications

References 24 publications

Effect of resin cement type on the final color of high translucent zirconia before and after thermocycling: an in vitro study.

Effect of resin cement type on the final color of high translucent zirconia before and after thermocycling: an in vitro study.

Research Progress and Clinical Application of All-Ceramic Micro-Veneer

Comparison of the Degree of Staining of Computer-Aided Design-Computer-Aided Manufacture (CAD-CAM) Ceramic Veneers by Green Tea, Coffee, and Coca-Cola Using a Digital Spectrophotometer

Contact Info

Product

Resources

About