Restorative Dentistry & Endodontics

Seyedeh Mahsa Sheikh-Al-Eslamian

2 Articles

Shade reproduction and the ability of lithium disilicate ceramics to mask dark substrates: Maryam Iravani, Sayna Shamszadeh, Narges Panahandeh, Seyedeh Mahsa Sheikh-Al-Eslamian, Hassan Torabzadeh; Restor Dent Endod 2020;45(3):e41. Published online July 16, 2020; DOI: https://doi.org/10.5395/rde.2020.45.e41

Objectives

This study aimed to evaluate the ability of lithium disilicate ceramics to reproduce the A2 shade and to mask A4 substrates.

Materials and Methods

Twenty-four discs (8 mm in diameter, shade A2) of high translucency (groups 1–3) and low translucency (groups 4–6) of IPS e.max ceramic with different thicknesses (0.5, 0.75, and 1 mm) were fabricated as monolithic structures. In addition, discs of medium opacity (group 7–8) with different core/veneer combinations (0.3 mm/0.7 mm and 0.5 mm/0.5 mm) were fabricated as bilayer structures. Specimens were superimposed on an A4 substrate (complex). The color changes of the complex were measured using a spectrophotometer on a black background, and the ΔE values of the complex were compared with either the A4 substrate or the A2 shade tab. One-way analysis of variance, the Tukey honest significant difference test, and the Fisher test were used to analyze the data (p < 0.05).

Results

Significant between-group differences were found for comparisons to both the A4 substrate and the A2 shade (p < 0.05). When compared with the A4 substrate, the ΔE values in all groups were in the non-acceptable range. When compared with the A2 shade, the ΔE values in all groups, except groups 2 and 3, were in the clinically acceptable range.

Conclusions

All translucencies and thicknesses masked the underlying dark substrate. However, the low-translucency IPS e.max Press better reproduced the A2 shade.

Citations

Citations to this article as recorded by

Masking capacity of minimally invasive lithium disilicate restorations on discolored teeth—The impact of ceramic thickness, the material's translucency, and the cement color
Kevser Pala, Eva Maria Reinshagen, Thomas Attin, Jürg Hüsler, Ronald E. Jung, Alexis Ioannidis
Journal of Esthetic and Restorative Dentistry.2024; 36(1): 107. CrossRef
Comparing the color match of monolithic CAD-CAM dental ceramics with the VITA Classical shade guide
Mohammadjavad Shirani, Maryam Emami, Ramin Mosharraf, Omid Savabi, Mehrdad Akhavankhaleghi, Kamran Azadbakht
The Journal of Prosthetic Dentistry.2024; 132(3): 605. CrossRef
Quantitative examination of factors influencing the colour reproduction ability of lithium disilicate glass-ceramics
József Saláta, Ferenc Szabó, Péter Csuti, Melinda Antal, Péter Márton, Péter Hermann, Judit Borbély, Emese Ábrám
BMC Oral Health.2024;[Epub] CrossRef
Aesthetic restoration using liner-treated lithium disilicate laminate veneers in discolored teeth after endodontic treatment : A case report
Ji-Hyun Kim, Min-Soo Bae, Yeon-Hee Park, Jung-Jin Lee, Tae-Sung Bae3, Jae-Min Seo
Korean Journal of Dental Materials.2023; 50(2): 91. CrossRef
Can we use the translucency parameter to predict the CAD/CAM ceramic restoration aesthetic?
Jie Wang, Jiawei Yang, Kaige Lv, Hongming Zhang, Hui Huang, Xinquan Jiang
Dental Materials.2023; 39(3): e1. CrossRef
Final Color of CAD-CAM Produced Thin Lithium Disilicate Ceramics Cemented with Different Colored Resin Cements on Darker Backgrounds
Merve BANKOĞLU GÜNGÖR
ADO Klinik Bilimler Dergisi.2023; 12(2): 234. CrossRef
Masking Ability of Monolithic and Layered Zirconia Crowns on Discolored Substrates
Cristina Gasparik, Manuela Maria Manziuc, Alexandru Victor Burde, Javier Ruiz-López, Smaranda Buduru, Diana Dudea
Materials.2022; 15(6): 2233. CrossRef
Effects of background color and thickness on the optical properties of CAD-CAM resin-matrix ceramics
Afnan F. Alfouzan, Sarah M. Alnafaiy, Lama S. Alsaleh, Noor H. Bawazir, Hanan N. Al-Otaibi, Sara M. Al Taweel, Huda A. Alshehri, Nawaf Labban
The Journal of Prosthetic Dentistry.2022; 128(3): 497.e1. CrossRef
Effect of CAD/CAM Ceramic Thickness on Shade Masking Ability of Discolored Teeth: In Vitro Study
Passent Ellakany, Marwa Madi, Nourhan M. Aly, Zainb S. Al-Aql, Maher AlGhamdi, Abdulrahman AlJeraisy, Adel S. Alagl
International Journal of Environmental Research and Public Health.2021; 18(24): 13359. CrossRef

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Effect of water storage on flexural strength of silorane and methacrylate-based composite resins: Narges Panahandeh, Hassan Torabzadeh, Hani Naderi, Seyedeh Mahsa Sheikh-Al-Eslamian; Restor Dent Endod 2017;42(4):309-315. Published online November 6, 2017; DOI: https://doi.org/10.5395/rde.2017.42.4.309

Abstract PDF PubReader ePub

Objectives

This study assessed the effect of water storage on the flexural strength (FS) of low shrinkage composites.

Materials and Methods

A total of 165 bar-shaped specimens (2 × 2 × 25 mm) were fabricated of 2 low shrinkage composites (Filtek P90 [3M ESPE], GC Kalore [GC International]) and a conventional methacrylate-based composite (Filtek Z250 [3M ESPE]). The specimens were subjected to 3-point bending test at 6 time intervals, namely: immediately after curing, at 24 hours, 1 week, 1 month, 6 months, and 1 year following storage in wet and dry conditions. The FS of the specimens were measured by applying compressive load at a crosshead speed of 1.0 mm/min. Data was analyzed using 3-way analysis of variance (ANOVA) and Tukey's test.

Results

Three-way ANOVA revealed significant interactions between time, type of composite, and storage condition (p = 0.001). Tukey's multiple comparison test revealed significant reductions in FS of all composites after 6 months and 1 year of storage in distilled water compared to dry condition.

Conclusions

Filtek P90 showed the highest and GC Kalore showed the lowest FS after 1 year storage in distilled water. The immediate high strength of Filtek Z250 significantly decreased at 1 year and its final value was lower than that of Filtek P90.

Citations

Citations to this article as recorded by

Effects of Bio-Aging on Mechanical Properties and Microbial Behavior of Different Resin Composites
Yuke Shou, Lanzhi Deng, Xiaoyu Huang, Xinyu Peng, Xinxuan Zhou, Zheng Wang, Yannan Huang, Bina Yang, Haohao Wang, Min Zhang, Lei Cheng
Biomolecules.2023; 13(7): 1125. CrossRef
Changes in color and contrast ratio of resin composites after curing and storage in water
Marlus da Silva Pedrosa, Fernando Neves Nogueira, Vitor de Oliveira Baldo, Igor Studart Medeiros
The Saudi Dental Journal.2021; 33(8): 1160. CrossRef
Ageing of Dental Composites Based on Methacrylate Resins—A Critical Review of the Causes and Method of Assessment
Agata Szczesio-Wlodarczyk, Jerzy Sokolowski, Joanna Kleczewska, Kinga Bociong
Polymers.2020; 12(4): 882. CrossRef
Color stability of nanohybrid composite resins in drinks
Juliana Jendiroba Faraoni, Isabela Barbosa Quero, Lívia Semedo Schiavuzzo, Regina Guenka Palma-Dibb
Brazilian Journal of Oral Sciences.2019; 18: e191601. CrossRef
Mechanical Degradation of Different Classes of Composite Resins Aged in Water, Air, and Oil
Weber Adad Ricci, Priscila Alfano, Saulo Pamato, Carlos Alberto dos Santos Cruz, Jefferson Ricardo Pereira
BioMed Research International.2019; 2019: 1. CrossRef
Effects of water and microbial-based aging on the performance of three dental restorative materials
Xinxuan Zhou, Suping Wang, Xian Peng, Yao Hu, Biao Ren, Mingyun Li, Liying Hao, Mingye Feng, Lei Cheng, Xuedong Zhou
Journal of the Mechanical Behavior of Biomedical Materials.2018; 80: 42. CrossRef

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