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Crystals
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Advanced Ceramics in Engineering and Dentistry
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Advanced Ceramics in Engineering and Dentistry

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Polycrystalline Ceramics".

Deadline for manuscript submissions: closed (30 November 2021) | Viewed by 4633

Special Issue Editors

Dr. Anastasia Katsavochristou

E-Mail Website
Guest Editor
Division of Prosthodontics, College of Dentistry, University of Kentucky, Lexington, KY 40536, USA
Interests: dental materials; zirconia; dental ceramics; implants; maxillofacial prosthetics; medical silicone; 3D printing; milling
Dr. Dimitrios Koumoulis

E-Mail Website
Guest Editor
Center for Applied Energy Research, University of Kentucky, 2540 Research Park Drive, Lexington, KY 40511, USA
Interests: nuclear magnetic resonance; materials science; solid state physics; X-ray diffraction; chemical engineering; metals; topological Insulators; thermoelectrics; transition metal oxides; borides; chalcogenides; electrochemistry
Dr. Michele Iafisco

E-Mail Website
Guest Editor
Laboratory of Bioceramics and Bio-hybrid Composites, CNR - Institute of Science and Technology for Ceramics, Via Granarolo, 64 I-48018 Faenza (RA), Italy
Interests: biomaterials; nanomedicine; bioceramics; biomineralization; calcium phosphates
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Ceramics have gained great scientific interest in the recent years, as novel ceramics have emerged that demonstrate significantly enhanced properties. Ceramics with novel surface and interfacial and bulk properties continue to broaden the application spectrum, and have managed to stay in tune with the contemporary advances of the 3D printing industry as well. These developments have led to a high demand for advanced ceramics for applications not only in industry and technology, but also in the medical and dental field, such as in the areas of reconstruction and implantology. In particular, the development of novel nanoceramics and bioactive ceramics has extended tremendously the potential of ceramics with unique applications that continue to fascinate.

We invite authors from various scientific fields to contribute to this Special Issue on advanced ceramics in engineering and medicine. The purpose of this issue is to create a multidisciplinary, contemporary collection of recent ceramic advances pertaining not only to synthesis and materials science, but also to their applications in technology, engineering, and medicine.

 Potential topics include:

-    Synthesis of ceramics and nanoceramics

-    Surface and bulk characterization of ceramics by spectroscopy, microscopy, etc.

-    Catalysis, membranes, and other industrial applications

-    Zirconia and titania ceramics

-    Dental applications

-    Bioactive ceramics

-    Interfacial phenomena

-   3D printing and ceramic milling

Dr. Anastasia Katsavochristou
Dr. Dimitrios Koumoulis
Dr. Michele Iafisco
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Crystals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Interfacial Phenomena Ceramic Catalysts
  • Nanoceramics
  • Ceramic Membranes
  • Bioactive Ceramics
  • Dental Ceramics
  • 3D printing and ceramic milling

Published Papers (2 papers)

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Research

11 pages, 7587 KiB  
Article
Fatigue Loading Test on Screw-Retained Lithium Disilicate Crowns Adhesively Cemented on Titanium Abutment
by Dimitar Filtchev, Daniela Stoeva, Branka Trifković, Danimir Jevremović and Georgi Iliev
Crystals 2022, 12(4), 465; https://0-doi-org.brum.beds.ac.uk/10.3390/cryst12040465 - 27 Mar 2022
Viewed by 1693
Abstract
The aim of this study was to assess the mechanical behavior and the microleakage of crown abutments made of lithium disilicate (LDS), adhesively bonded to preconditioned titanium bonding base under dynamic loading considering the type of teeth incisors, premolars, and molars. Thirty-three monolithic [...] Read more.
The aim of this study was to assess the mechanical behavior and the microleakage of crown abutments made of lithium disilicate (LDS), adhesively bonded to preconditioned titanium bonding base under dynamic loading considering the type of teeth incisors, premolars, and molars. Thirty-three monolithic LDS implant supra-structures, representing a copy of natural tooth morphology (central incisor, second premolar, or first molar) were fabricated and bonded to titanium bases, screw-retained on the implant, and subjected to dynamic loading of 250,000 loading cycles at 2 Hz. After mechanical cycling, specimens were immersed in 5% methylene blue solution for 24 h at 37 °C. Microleakage was evaluated under magnification. The presence or absence of the following parameters were also evaluated: abutment screw deformation, abutment deformation, crack or craze line on the ceramic structure, adhesive failure between titanium base and ceramic superstructure, failures in ceramic superstructure or titanium base, and remaining cement around titanium base and ceramic superstructure. Considering the type of teeth, there are eight defects in relation to the group of central incisors, whereas the group of first molars accounts for seven defects. The second premolar is the worst performer with eleven defects. Significant accumulation of dye was registered in all teeth groups, i.e., grade 2 (staining around hexagonal area of the connection), according to the applied scale. Failure of hybrid abutments could be related to the correct seal between the titanium base and the ceramic restorations. The type of teeth could also be related to the presence of failures. Full article
(This article belongs to the Special Issue Advanced Ceramics in Engineering and Dentistry)
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11 pages, 856 KiB  
Article
Variations in the Shades of Contemporary Dental Ceramics: An In Vitro Analysis
by Syed Rashid Habib, Abdulaziz Saud Al Rashoud, Turki Ali Safhi, Abdulrahman Hamad Almajed, Hamad Ali Alnafisah, Salwa Omar Bajunaid, Abdulaziz S. Alqahtani and Mohammed Alqahtani
Crystals 2021, 11(11), 1288; https://0-doi-org.brum.beds.ac.uk/10.3390/cryst11111288 - 24 Oct 2021
Cited by 4 | Viewed by 1786
Abstract
Background: To identify and compare the shade variations of various commonly used esthetic dental ceramics by calculating their total-color-difference (ΔE) and translucency parameter (TP) using a spectrophotometer. Methods: In total, 165 disc specimens from three shades (A1, B1, and C1) of five ceramic [...] Read more.
Background: To identify and compare the shade variations of various commonly used esthetic dental ceramics by calculating their total-color-difference (ΔE) and translucency parameter (TP) using a spectrophotometer. Methods: In total, 165 disc specimens from three shades (A1, B1, and C1) of five ceramic materials (N = 55/shade; n = 11/ceramic material group) were prepared (Metal-ceramic (MC), IPS e.max press (Emax-P), IPS e.max layer (Emax-L), Layered Zirconia (Zr-L) and Monolithic zirconia (Zr-M)). With a spectrophotometer, the L* a* b* values were obtained. Total color differences (ΔE = [(ΔL*)2 + (Δa*)2 + (Δb*)2]1/2) and translucency parameter (TP = [(L*B − L*W)2 + (a*B − a*W)2 + (b*B – b*W)2]1/2) were calculated. The statistical tests included ANOVA and Post hoc Tukey’s analysis (p < 0.05). Results: Significant differences (p = 0.000) were found between the groups for ΔE. Highest ΔE (A1) were found for Zr-L (80.18 ± 20) and lowest for Zr-M (62.97 ± 1.28). For B1, highest ΔE values were noted for MC (76.85 + 0.78) and lowest for the Emax-L (62.13 ± 1.49). For C1, highest ΔE values were found for the MC group (73.96 ± 0 67) and lowest for Emax-P (55.09 ± 1.76). Translucency variations between tested ceramics were revealed (p < 0.05). Highest TP values (A1) were found for Emax-L (2.99 ± 1.64) and lowest for Zr-L (0.35 ± 0.16). For B1, highest TP values were noted for Emax-P (3.50 ± 1.74) and lowest for MC (0.57 ± 0.40). For C1, highest TP values were found for Emax-P (4.46 ± 2.42) and lowest for MC (0.58 ± 0 48). Conclusions: Significant differences in ΔE and TP were found for tested ceramic groups. The color differences of the tested materials varied according to clinical acceptability, even with the selection of same color/shade. The color/shades of the various dental ceramics do not match with the vita shade guide tabs, to which they are compared most often. Shade differences are present between different lots of ceramic materials from the same or different brands. Full article
(This article belongs to the Special Issue Advanced Ceramics in Engineering and Dentistry)
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