Article
Polymer Science
Allegra Comba, Gaetano Paolone, Andrea Baldi, Alessandro Vichi, Cecilia Goracci, Giulia Bertozzi, Nicola Scotti
Summary: This study evaluated the effects of substrate and cement shades on the translucency and color of CAD/CAM materials, and found that the final translucency and color of ceramic restorations are significantly influenced by ceramic material, cement shade, and substrate color.
Article
Dentistry, Oral Surgery & Medicine
Murat Alkurt, Zeynep Yesil Duymus, Seyma Yildiz
Summary: The effect of 10% carbamide peroxide and 6% hydrogen peroxide home bleaching agents on the translucency and color of monolithic zirconia was assessed. The study found that bleaching agents can significantly change the translucency and color of zirconia, suggesting caution should be taken when using home bleaching agents for patients with zirconia restorations.
DENTAL MATERIALS JOURNAL
(2022)
Article
Dentistry, Oral Surgery & Medicine
Pablo Machado Soares, Ana Carolina Cadore-Rodrigues, Maria Gabriela Packaeser, Atais Bacchi, Luiz Felipe Valandro, Gabriel Kalil Rocha Pereira, Marilia Pivetta Rippe
Summary: The study aimed to evaluate the masking ability of different ceramic materials over different implant abutment materials. The results showed that bilayer systems (Zir+Pc) had the most predictable masking ability, while monolithic ceramics were not able to effectively mask discolored substrates. Increasing the thickness of the restorative material improved the masking ability of all materials tested.
JOURNAL OF PROSTHETIC DENTISTRY
(2022)
Article
Materials Science, Multidisciplinary
Mallika Shetty, Saurabh Jain, Tushar Milind Wankhede, Mohammed E. Sayed, Zahid Mohammed, Sanath Shetty, Mohammed Hussain Dafer Al Wadei, Saeed M. Alqahtani, Ahlam Abdulsalam Ahmed Othman, Mashael Adullah Alnijaiban, Alhanouf K. Alnajdi, Tariq Ibrahim Akkam, Saad Saleh AlResayes, Abdulkarim Hussain Alshehri, Fawzia Ibraheem Shaabi
Summary: This study evaluated the changes in translucency, contrast ratio, and color of CAD/CAM zirconia after accelerated artificial aging at different sintering temperatures. The results showed that an increase in sintering temperature led to an increase in translucency, while contrast ratio and color change were not significant.
Article
Dentistry, Oral Surgery & Medicine
Yu-Ching Liu, Tzu-Hao Lin, Yuh-Yih Lin, Suh-Woan Hu, Jeng-Fen Liu, Chun-Chuan Yang, Min Yan
Summary: The study compared the optical properties of two generations of rapid sintered translucent zirconia, showing that rapid sintering is a feasible method for shortening manufacturing time, with imperceptible and acceptable color differences.
JOURNAL OF DENTAL SCIENCES
(2022)
Article
Dentistry, Oral Surgery & Medicine
Linah M. Ashy, Adnan Al-Mutairi, Tariq Al-Otaibi, Lulwa Al-Turki
Summary: The study compared the color stability of high-translucency monolithic zirconia ceramics with lithium disilicate under different resin cements after thermocyclic aging. The results showed that at a 1 mm thickness, there was no significant difference in color stability between the two materials.
Article
Dentistry, Oral Surgery & Medicine
Rukiye Durkan, Hatice Simsek, Gonca Deste Gokay, Burak Yilmaz
Summary: The study investigated the effect of sintering time on translucency and color of translucent zirconia ceramics and found that 1 or 3-hour sintering had similar color effects on both zirconias, with NEX showing higher translucency compared to KAT. Clinically, clinicians may prefer 1-hour sintering for high translucency in KAT zirconia. However, for NEX, differences in color after 1 or 3-hour sintering compared to manufacturer-specified time may affect the final restoration color.
JOURNAL OF ESTHETIC AND RESTORATIVE DENTISTRY
(2021)
Article
Dentistry, Oral Surgery & Medicine
Samah Saker, Mutlu Ozcan
Summary: The study demonstrated that the color properties of monolithic zirconia are influenced by the material brand, thickness, and surface finishing and polishing procedures. These factors have a significant impact on the optical properties of the material during aging.
JOURNAL OF ESTHETIC AND RESTORATIVE DENTISTRY
(2021)
Article
Dentistry, Oral Surgery & Medicine
Oscar E. Pecho, Paula Benetti, Javier Ruiz-Lopez, Giordana P. Furini, Maria Tejada-Casado, Maria M. Perez
Summary: This study evaluated the optical properties of different zirconia ceramic systems and compared them with bovine dental structures. The optical properties of 3Y-TZP and 5Y-PSZ differed from each other, but 3Y-TZP showed similar relative translucency parameter to bovine dentin.
JOURNAL OF ESTHETIC AND RESTORATIVE DENTISTRY
(2023)
Article
Dentistry, Oral Surgery & Medicine
Meryem Gulce Subasi, Guelce Cakmak, Murat Sert, Burak Yilmaz
Summary: This study evaluated the effect of multiple firings on surface roughness and flexural strength of four different types of CAD-CAM ceramics. The results showed that the type of ceramic material and the number of firings had a significant impact on surface roughness and flexural strength.
JOURNAL OF PROSTHETIC DENTISTRY
(2022)
Review
Dentistry, Oral Surgery & Medicine
Beshr Hajhamid, Najm Alfrisany, Eszter Somogyi-Ganss
Summary: This study systematically reviewed the impact of low temperature degradation on the crystalline structures and optical properties of different types of dental monolithic zirconia materials. It was found that tetragonal zirconia showed an increase in monoclinic phase content during aging, while cubic zirconia demonstrated resistance to LTD. The optical properties of all zirconia materials investigated appeared to be compromised with increasing aging time.
Article
Dentistry, Oral Surgery & Medicine
D. A. Reid, J. I. Matis, W. Lien, C. J. Raimondi, S. C. Arnason, N. B. DuVall, K. S. Vandewalle
Summary: The aim of this study was to compare the optical and mechanical properties between newer ceramic CAD/CAM materials and established materials in the market. The results showed that lithium disilicate-based ceramic materials had better optical properties but lower mechanical properties compared to zirconia-based ceramic materials.
OPERATIVE DENTISTRY
(2023)
Article
Materials Science, Multidisciplinary
Lei Jiang, Meng-Qi Xu, Xin-Ling Lu, Xin-Wen Tong, Xin-Jie Liang, Hao Yu
Summary: The effects of multiple firings on the color and translucency of monolithic zirconia were investigated in this study. Multiple firings significantly affected the opalescence and color difference values, especially in the nanosized zirconia group. However, multiple firings did not have significant effects on the translucency and contrast ratio values of any materials. The surface topographies of the specimens after multiple firings were similar.
FRONTIERS IN MATERIALS
(2023)
Article
Materials Science, Ceramics
Keriman Pekkan
Summary: The different sintering programs have a more critical effect on CSP and CSM in terms of translucency variations, with the translucency program leading to the most grain growth.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Luciana M. Schabbach, Bruno C. dos Santos, Leticia S. De Bortoli, Marcio Celso Fredel, Bruno Henriques
Summary: This study utilized the Kubelka-Munk theory to evaluate the optical properties of three different commercial monolithic dental zirconia, discovering varying degrees of translucency across different groups. The Smart Dent (TM) group showed significantly higher light absorption coefficient, while the Zirkon (TM) group displayed stronger prevalence of scattering with low K/S values.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Dentistry, Oral Surgery & Medicine
Sofia Diamantopoulou, William M. Johnston, Razvan Ghinea, Efstratios Papazoglou
Summary: The objective of this study was to define the color of anterior teeth of a selected population and correlate it with the color of all possible enamel-dentine combinations of three different resin composite systems. The results showed that the color space of the resin composite systems did not fully match the color range of anterior teeth. It was suggested to use 0.5 mm enamel thickness when building layered restorations for better color coverage.
JOURNAL OF ESTHETIC AND RESTORATIVE DENTISTRY
(2023)
Review
Dentistry, Oral Surgery & Medicine
Bibiana Gabardo Perez, Bruna Gaidarji, Danielle Zorzo Righes, Oscar E. Pecho, Gabriel Kalil Rocha Pereira, Leticia Brandao Durand
Summary: This study aimed to summarize the existing evidence on the masking ability of resin composites. The study found that acceptable masking can be achieved with one layer of opaque shade resin composite or using the layering technique. For the black background, at least 1.0mm-thick opaque shade resin composite is needed to achieve acceptable masking. For the C4 background, acceptable masking can be achieved with one layer of 0.5-1.5mm-thick opaque shade resin composite or by using different combinations of enamel body and dentin shades with a final thickness of 1.5mm.
JOURNAL OF ESTHETIC AND RESTORATIVE DENTISTRY
(2023)
Article
Chemistry, Physical
Maria Tejada-Casado, Razvan Ghinea, Maria M. Perez, Javier Ruiz-Lopez, Henning Luebbe, Luis Javier Herrera
Summary: The study aimed to develop and assess a color-prediction method for dental resin-based composites with different shades and under different illuminants. The method utilized a non-contact spectroradiometer and second-degree polynomial regression to predict color coordinates. The accuracy of the method was evaluated using the CIEDE2000 total color difference formula. The results showed highly accurate color estimations for different thicknesses of resin-based composites under different illuminations.
Article
Chemistry, Multidisciplinary
Javier Ruiz-Lopez, Manuel Melgosa, Razvan Ghinea, Maria Tejada-Casado, Ioana-Sofia Pop-Ciutrila, Maria M. Perez
Summary: The aim of this study was to assess the color constancy of dental ceramics under new white LED illuminants proposed by the CIE. The spectral reflectance factors of 18 types of dental ceramics were analyzed to calculate their colors under different illuminants. The color differences between dental ceramics under CIE D65 standard illuminant and various white LED illuminants were calculated using CIEDE2000. The study found that the effect of CIE-proposed LED illuminants on dental ceramic is perceptible and slightly lower than on natural teeth.
APPLIED SCIENCES-BASEL
(2023)
Article
Dentistry, Oral Surgery & Medicine
Rodrigo Rohenkohl Silva, Joao Paulo de Carli, Alvaro Della Bona, Kaue Faria Collares, Oscar Emilio Pecho, Sonia Saeger Meireles, Joao Renato Dieterich Junior, Paula Benetti
Summary: This study aimed to evaluate the effect of smoking on tooth whitening and color change after at-home bleaching. Both smokers and non-smokers underwent at-home bleaching using 22% carbamide peroxide for 14 days. It was found that smoking negatively affected color stability after bleaching, but the observed changes were clinically acceptable.
JOURNAL OF ESTHETIC AND RESTORATIVE DENTISTRY
(2023)
Article
Dentistry, Oral Surgery & Medicine
Ivan S. S. Ristic, Mirjana Boskovic, Maria D. D. Gonzalez, Rade D. D. Paravina
Summary: The objective of this study was to evaluate the influence of group and individual education on shade matching quality among dental students. The results showed that the experimental group achieved significantly better results in individual color matching after education and training, while both groups made progress in team color matching. The students rated shade matching as more accurate and easier after education.
JOURNAL OF ESTHETIC AND RESTORATIVE DENTISTRY
(2023)
Article
Dentistry, Oral Surgery & Medicine
Richard Wallach, Jeryl D. English, Audrey Moon, Ralph A. Brock II, Rade D. Paravina, F. Kurtis Kasper
Summary: The objective of this study was to investigate the effect of common beverages and accelerated aging on the colour stability of filled resins for 3D-printed orthodontic brackets. The results showed that red wine and coffee caused the greatest colour and translucency change, followed by tea, while accelerated aging had the least impact on colour and translucency. Therefore, the 3D-printed resins experienced significant changes in colour and translucency after exposure to staining sources, which may affect their suitability for aesthetic orthodontic brackets.
ORTHODONTICS & CRANIOFACIAL RESEARCH
(2023)
Article
Chemistry, Physical
Alejandro Toral-Lopez, Maria M. Perez, Ana Belen Rodriguez-Aguila, Juan C. Cardona, Ana M. Ionescu, Andres Godoy
Summary: Transparent conductive electrodes are crucial components in optoelectronic devices. In this study, the Double Integration Sphere combined with the numerical Inverse Adding-Doubling method is used to analyze the optical properties of commercial indium tin oxide (ITO) deposited on flexible PET samples, emphasizing the significant contribution of light scattering to radiation extinction. Additionally, the effects of mechanical stresses on the optical and electrical properties of the samples are investigated.
Article
Dentistry, Oral Surgery & Medicine
Cristina Benavides-Reyes, Maria M. Perez, Maria Tejada-Casado, Javier Ruiz-Lopez, Cristina Lucena
Summary: This study evaluated the color stability and degree of conversion (DC%) of gingiva-colored resin-based composites (GCRBC) and found that DC% and color stability were related to the GCRBC brand. All composites experienced color changes after immersion in water, red wine, and coffee, with wine causing greater color changes than coffee, which may compromise long-term aesthetic results.
JOURNAL OF ESTHETIC AND RESTORATIVE DENTISTRY
(2023)
Article
Dentistry, Oral Surgery & Medicine
Maria Tejada-Casado, Maria M. Perez, Alvaro Della Bona, Henning Luebbe, Razvan Ghinea, Luis Javier Herrera
Summary: The objective of this study was to determine the acceptability thresholds for visual color differences in regions of the dental color space with varying chromaticity. The results showed that observers had a higher acceptability for more achromatic samples (low chroma value) compared to more chromatic samples.
JOURNAL OF ESTHETIC AND RESTORATIVE DENTISTRY
(2023)
Article
Dentistry, Oral Surgery & Medicine
Eduarda Fachinetto, Gratcheva Falcao Chiapinotto, Valentina Soares Menna Barreto, Oscar Pecho, Gabriel Kalil Rocha Pereira, Atais Bacchi
Summary: This in vitro study evaluated the color differences when discolored tooth substrates were restored with CAD/CAM monolithic ceramics depending on ceramic type and thickness, and the try-in paste shade. The use of low-translucent glass-ceramics and Opaque White try-in paste are useful to reduce color differences, and the most adequate ceramic thickness depends on the substrate discoloration.
QUINTESSENCE INTERNATIONAL
(2023)
Article
Dentistry, Oral Surgery & Medicine
Eman H. Ismail, Razvan I. Ghinea, Luis J. Herrera, Esam Tashkandi, Rade D. Paravina
Summary: This study further analyzed perceptibility and acceptability thresholds for light, medium, and dark tooth-colored specimens. The results showed that both observer group and geographic location influenced the visual perception of color difference, with observers being most forgiving for light shades. This understanding is clinically significant for overcoming challenges in clinical color matching.
AMERICAN JOURNAL OF DENTISTRY
(2023)
Article
Dentistry, Oral Surgery & Medicine
Oscar E. Pecho, Paula Benetti, Javier Ruiz-Lopez, Giordana P. Furini, Maria Tejada-Casado, Maria M. Perez
Summary: This study evaluated the optical properties of different zirconia ceramic systems and compared them with bovine dental structures. The optical properties of 3Y-TZP and 5Y-PSZ differed from each other, but 3Y-TZP showed similar relative translucency parameter to bovine dentin.
JOURNAL OF ESTHETIC AND RESTORATIVE DENTISTRY
(2023)
Article
Dentistry, Oral Surgery & Medicine
Chang Zeng, Pei Hu, Colin P. Egan, Brian E. Bergeron, Franklin Tay, Jingzhi Ma
Summary: The study compared the bacteria debridement efficacy of the first and second generations of sonic root canal irrigant activation systems. The results showed that activation of 2% NaOCl with either EndoActivator or SmartLite Pro EndoActivator significantly reduced the overall intracanal bacterial load compared to syringe-side-vented needle delivery. However, delivering 2% NaOCl for 5 minutes using the syringe-side-vented needle produced better bacteria debridement than either sonic agitation system.
JOURNAL OF DENTISTRY
(2024)
Article
Dentistry, Oral Surgery & Medicine
Alaa Husni Qari, Raghad Mohammed Alharbi, Shahd Saud Alomiri, Banan Nasser Alandanusi, Lina Ayman Mirza, Mohammad Hasan Al-Harthy
Summary: The study compares the experience of patients seen using teledentistry with traditional Orofacial Pain and TMD visits. Results indicated a borderline difference in effectively using teledentistry for follow-ups among different age groups, but no significant differences were found in patients' experience between virtual and conventional visits. This suggests that high-quality dental care services can be provided remotely without adversely affecting patient experience or quality of care.
JOURNAL OF DENTISTRY
(2024)
Article
Dentistry, Oral Surgery & Medicine
Giovanna Iezzi, Barbara Zavan, Morena Petrini, Letizia Ferroni, Tania Vanessa Pierfelice, Ugo D'Amora, Alfredo Ronca, Emira D'Amico, Carlo Mangano
Summary: This study characterized the surface topography and evaluated the biological responses of various cells to a novel 3D-printed dental implant. The surface of the implant showed a highly interconnected porous architecture and roughness, leading to good adhesion and growth of human oral osteoblasts, gingival fibroblasts, mesenchymal stem cells, and monocytes. These findings suggest that this 3D-printed implant has excellent potential for clinical applications.
JOURNAL OF DENTISTRY
(2024)
