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Crystals
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Resin Ceramics Composite
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Resin Ceramics Composite

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Hybrid and Composite Crystalline Materials".

Deadline for manuscript submissions: closed (28 February 2021) | Viewed by 6688

Special Issue Editors

Prof. Dr. Go Inoue

E-Mail Website
Guest Editor
Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Department of Oral Health Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
Interests: acid-base resistant zone; secondary caries; fluoride
Dr. Amr Saad

E-Mail Website
Guest Editor
Assistant professor, Opeative dentistry department, Batterjee Medical College, Jeddah, Saudi Arabia
Interests: Restorative dentistry

Special Issue Information

Dear Colleagues,

Resin composite and ceramics are widely used for restorative treatment, including treatment due to aesthetic requests from patients. The development of adhesion helps the expansion of indications, especially in using resin composite. Moreover, additional effects from several ions, such as fluoride, calcium and phosphate, and functional monomers, such as 10-MDP and GPDM, will lead to outstanding reactions with tooth substrate. Especially in developed countries, many problems are arising in relation to an aging society, tooth wear, root caries, tooth fracture, missing teeth and so on. To solve these problems and protect teeth from aging, new technologies, materials and procedures are being created.

We invite researchers to contribute to the Special Issue titled “Resin Ceramics Composite”, which is intended to serve as a unique multidisciplinary forum covering broad aspects of science, technology and the application of resin composite and ceramics.

Prof. Dr. Go Inoue
Dr. Amr Saad
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

  • resin composite
  • adhesive
  • functional monomers
  • fluoride
  • resin cement
  • remineralization.

Published Papers (3 papers)

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Research

9 pages, 1812 KiB  
Article
Influence of Silane Pretreatment and Warm Air-Drying on Long-Term Composite Adaptation to Lithium Disilicate Ceramic
by Pa Pa Kay Khine, Antonin Tichy, Ahmed Abdou, Keiichi Hosaka, Yasunori Sumi, Junji Tagami and Masatoshi Nakajima
Crystals 2021, 11(2), 86; https://0-doi-org.brum.beds.ac.uk/10.3390/cryst11020086 - 21 Jan 2021
Cited by 1 | Viewed by 1859
Abstract
Background: Repair bonding to lithium disilicate ceramic (LDS) remains an issue. This study examined whether the adaptation of a resin composite to LDS can be improved by a silane pretreatment and warm air-drying. Methods: LDS blocks (IPS e.max CAD) with prefabricated tapered cavities [...] Read more.
Background: Repair bonding to lithium disilicate ceramic (LDS) remains an issue. This study examined whether the adaptation of a resin composite to LDS can be improved by a silane pretreatment and warm air-drying. Methods: LDS blocks (IPS e.max CAD) with prefabricated tapered cavities were bonded using a silane-containing universal adhesive (Clearfil Universal Bond Quick ER; UBQ) or the bonding agent of a two-step self-etch adhesive (Clearfil SE Bond 2), with and without a silane pretreatment (Clearfil Ceramic Primer; CP). CP and the adhesives were air-dried with normal air (23 ± 1 °C) or warm air (60 ± 5 °C), light-cured, and the cavities were filled with a flowable composite. Interfacial gap formation was evaluated using swept-source optical coherence tomography immediately after filling, after 24 h, 5000 and 10,000 thermal cycles, and an additional 1 year of water storage. Results: Without the silane pretreatment, all specimens soon detached from the cavities. Warm air-drying significantly decreased gap formation compared to normal air-dried groups (p < 0.001) and improved long-term stability (p < 0.001). The lowest gap formation was observed with UBQ when the silane pretreatment was combined with warm air-drying. Conclusions: Composite adaptation to LDS was insufficient without silanization, but it was stable in the long term if the silane pretreatment and warm air-drying were combined. Full article
(This article belongs to the Special Issue Resin Ceramics Composite)
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9 pages, 3692 KiB  
Article
Transverse Micro Radiography Analysis of the Effect of Experimental Calcium-Containing Primer System on Demineralized Enamel
by Yusuke Koshimitsu, Go Inoue, Mahmoud Sayed, Amr Saad, Masaomi Ikeda and Junji Tagami
Crystals 2020, 10(12), 1087; https://0-doi-org.brum.beds.ac.uk/10.3390/cryst10121087 - 27 Nov 2020
Cited by 3 | Viewed by 2120
Abstract
Background: Enamel mineral density is dependent on a balanced dynamic process of demineralization and remineralization. Objective: We evaluated the remineralization potential of experimental calcium- containing primer (CaP) application on enamel subsurface lesions. Methods: Demineralized enamel samples obtained from bovine incisor teeth were prepared [...] Read more.
Background: Enamel mineral density is dependent on a balanced dynamic process of demineralization and remineralization. Objective: We evaluated the remineralization potential of experimental calcium- containing primer (CaP) application on enamel subsurface lesions. Methods: Demineralized enamel samples obtained from bovine incisor teeth were prepared and cut buccolingually. All samples were divided into 4 main groups according to the type of primer: CLEARFIL SE BOND 2 Primer (SEP), experimental calcium-containing primer (CaP) and bond: CLEARFIL SE BOND 2 Bond (SEB), CLEARFIL Protect Bond (PBB) treatment: (1) SEP-SEB (2) SEP-PBB (3) CaP-SEB (4) CaP-PBB. Each group was subdivided according to storage time in artificial saliva: immediately, 1 month and 6 months. Then, the samples were analyzed using transverse micro radiography (TMR). Additionally, the samples treated with each primer were prepared for scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy (EDS) observation. Two-way ANOVA was used for the statistical analysis of mineral loss (ΔZ: vol%·µm). Results: CaP-PBB had the significantly lowest ΔZ at all storage times, while SEP-SEB had the highest ΔZ (p < 0.05). SEM observations revealed that new crystals were formed on the surface after 6 months, and the ratio of calcium on the enamel increased in the EDS analysis. Conclusion: Experimental calcium-containing primer can provide additional mineral deposition, with even further deposition when combined with a fluoride-containing bond. Full article
(This article belongs to the Special Issue Resin Ceramics Composite)
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12 pages, 1302 KiB  
Article
Influence of Alumina Air-Abrasion on Flexural and Shear Bond Strengths of CAD/CAM Composite
by Pirat Karntiang, Hiroshi Ikeda, Yuki Nagamatsu and Hiroshi Shimizu
Crystals 2020, 10(10), 927; https://0-doi-org.brum.beds.ac.uk/10.3390/cryst10100927 - 12 Oct 2020
Viewed by 2103
Abstract
The purpose of this study was to clarify the influence of alumina air-abrasion on flexural and bond strengths of CAD/CAM composites. The flexural strength (FS) of two brands of commercial CAD/CAM composites was investigated by the three-point bending test using two specimen designs: [...] Read more.
The purpose of this study was to clarify the influence of alumina air-abrasion on flexural and bond strengths of CAD/CAM composites. The flexural strength (FS) of two brands of commercial CAD/CAM composites was investigated by the three-point bending test using two specimen designs: the single-bar according to the ISO standard and the bonded-double-bar fabricated by bonding two bars with a resin cement. The bond strength between the composites and the resin cement was measured by a conventional shear bond strength (SBS) test. The FS of single-bar specimens was significantly decreased by the air-abrasion. For the FS of the bonded-double-bar specimen, on the other hand, there was no significant difference between the specimens with/without air-abrasion. The SBS for the composites was significantly increased by air-abrasion. The results suggest that alumina air-abrasion improves the SBS of the composites while weakening its FS. Contrarily, the FS of the air-abraded composite did not decrease when the composites were bonded with the resin cement. Full article
(This article belongs to the Special Issue Resin Ceramics Composite)
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