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Nanomaterials
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Design, Fabrication, and Application of Nanomaterials in Dental Science and...
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Design, Fabrication, and Application of Nanomaterials in Dental Science and Dentistry

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Biology and Medicines".

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 6334

Special Issue Editors

Dr. Ali Ramazani

E-Mail Website
Guest Editor
Department of Mechanical Engineering, Massachusetts Institute of Technology (MIT), Cambridge, MA, USA
Interests: nanomaterials; interfaces; thermoelectrics; photovoltaics; phonovoltaics; multiscale modeling of materials; ML
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Roya Zandparsa

E-Mail Website1 Website2
Guest Editor
1. Tufts University School of Dental Medicine, Boston, MA 02111, USA
2. Harvard School of Dental Medicine, Boston, MA 02115, USA
Interests: biomaterials; dental materials; dental implants; zirconia; ceramics; metals; CAD/CAM technology; artificial intelligence; nanotechnology; nanostructure; nanomaterials; composites; surface treatment; bonding; regenerative biomaterials; adhesion; polymer scaffolds; additive manufacturing; printing; dental cements; dental impressions; hydroxyapatite; polymers; mechanical property
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue aims to consider the design, fabrication, and application of nanomaterials for dental applications, including all aspects of oral diseases, diagnosis, prevention, and treatment. The advent of nanoscience and nanotechnology in dentistry seems to provide answers to most problems and mysteries because we can control the chemistry and physics of dental materials and accordingly tune their properties and performance in the nanometer range. This allows for great improvements in dental materials and makes them better candidates for caries inhibitors, root canal disinfectants, hard tissue remineralizing agents, targeted drug delivery, bio-membranes, adhesion promoters and boosters, bioactive and antimicrobial resins, and friction-free orthodontic arch wires, which can have a major impact on human life. This Special Issue welcomes the submission of studies dealing with applications of nanometals, nanoceramics, nanoresins, and other nanomaterials from all areas of dental science and dentistry.

Dr. Ali Ramazani
Prof. Dr. Roya Zandparsa
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. Nanomaterials is an international peer-reviewed open access semimonthly 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 2900 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.

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Published Papers (2 papers)

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Research

15 pages, 6110 KiB  
Article
Depth of Cure, Hardness, Roughness and Filler Dimension of Bulk-Fill Flowable, Conventional Flowable and High-Strength Universal Injectable Composites: An In Vitro Study
by Francesco Saverio Ludovichetti, Patrizia Lucchi, Giulia Zambon, Luca Pezzato, Rachele Bertolini, Nicoletta Zerman, Edoardo Stellini and Sergio Mazzoleni
Nanomaterials 2022, 12(12), 1951; https://doi.org/10.3390/nano12121951 - 7 Jun 2022
Cited by 16 | Viewed by 3183
Abstract
(1) Objective: To evaluate and compare the depth of cure (DOC) of two bulk-fill flowable composites (Filtek Bulk Fill Flowable Restorative and Tetric EvoFlow Bulk Fill), two conventional flowable composites (Filtek Supreme XTE Flowable Restorative and G-ænial Flo X) and one high-strength universal [...] Read more.
(1) Objective: To evaluate and compare the depth of cure (DOC) of two bulk-fill flowable composites (Filtek Bulk Fill Flowable Restorative and Tetric EvoFlow Bulk Fill), two conventional flowable composites (Filtek Supreme XTE Flowable Restorative and G-ænial Flo X) and one high-strength universal injectable composite (G-ænial Universal Injectable). (2) Methods: specimens were placed in a stainless-steel mold with an orifice of 4 mm in diameter and 10 mm in depth and light-cured for 20 s using a light emitting diode (LED) light-curing unit (LCU) with an irradiance of 1000 mW/cm2; depth of cure was assessed using the ISO 4049 scrape technique, and the absolute length of the specimen of cured composite was measured in millimeters with a digital caliper. The same procedure was repeated with 14 samples for each material under investigation, for a total number of 70 test bodies. Material roughness and hardness results were also investigated using, respectively, a 3D laser confocal microscope (LEXT OLS 4100; Olympus) at ×5 magnification and a Vickers diamond indenter (Vickers microhardness tester, Shimadzu®, Kyoto, Japan) under 10-N load and a 30 s dwell time. SEM images at 3000 and 9000 magnification were collected in order to study the materials’ filler content. Statistical analysis were performed by a commercial statistical software package (SPSS) and data were analyzed using multiple comparison Dunnett’s test. (3) Results: The average DOC of both bulk-fill composites was more than 4 mm, as a range of 3.91 and 4.53 mm with an average value of 4.24 and 4.12 mm, while that of the conventional flowable composites was much lower, as a range of 2.47 and 2.90 mm with an average value of 2.58 and 2.84 mm; DOC of the high-strength injectable composite was greater than the one of traditional composites, but not to the level of bulk-fill materials, as a range of 2.82 and 3.01 mm with an average value of 3.02 mm. Statistical analysis revealed significant differences (p-values < 0.05) in the depth of cure between bulk fill flowable composites and other composites, while there was no difference (p-values > 0.05) between the materials of the same type. (4) Conclusions: Bulk-fill flowable composites showed significantly higher depth of cure values than both traditional flowable composites and high-strength injectable composites. Full article
(This article belongs to the Special Issue Design, Fabrication, and Application of Nanomaterials in Dental Science and Dentistry)
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15 pages, 3864 KiB  
Article
A Biocompatible Ultrananocrystalline Diamond (UNCD) Coating for a New Generation of Dental Implants
by Orlando Auciello, Sandra Renou, Karam Kang, Deborah Tasat and Daniel Olmedo
Nanomaterials 2022, 12(5), 782; https://doi.org/10.3390/nano12050782 - 25 Feb 2022
Cited by 11 | Viewed by 2492
Abstract
Implant therapy using osseointegratable titanium (Ti) dental implants has revolutionized clinical dental practice and has shown a high rate of success. However, because a metallic implant is in contact with body tissues and fluids in vivo, ions/particles can be released into the biological [...] Read more.
Implant therapy using osseointegratable titanium (Ti) dental implants has revolutionized clinical dental practice and has shown a high rate of success. However, because a metallic implant is in contact with body tissues and fluids in vivo, ions/particles can be released into the biological milieu as a result of corrosion or biotribocorrosion. Ultrananocrystalline diamond (UNCD) coatings possess a synergistic combination of mechanical, tribological, and chemical properties, which makes UNCD highly biocompatible. In addition, because the UNCD coating is made of carbon (C), a component of human DNA, cells, and molecules, it is potentially a highly biocompatible coating for medical implant devices. The aim of the present research was to evaluate tissue response to UNCD-coated titanium micro-implants using a murine model designed to evaluate biocompatibility. Non-coated (n = 10) and UNCD-coated (n = 10) orthodontic Ti micro-implants were placed in the hematopoietic bone marrow of the tibia of male Wistar rats. The animals were euthanized 30 days post implantation. The tibiae were resected, and ground histologic sections were obtained and stained with toluidine blue. Histologically, both groups showed lamellar bone tissue in contact with the implants (osseointegration). No inflammatory or multinucleated giant cells were observed. Histomorphometric evaluation showed no statistically significant differences in the percentage of BIC between groups (C: 53.40 ± 13% vs. UNCD: 58.82 ± 9%, p > 0.05). UNCD showed good biocompatibility properties. Although the percentage of BIC (osseointegration) was similar in UNCD-coated and control Ti micro-implants, the documented tribological properties of UNCD make it a superior implant coating material. Given the current surge in the use of nano-coatings, nanofilms, and nanostructured surfaces to enhance the biocompatibility of biomedical implants, the results of the present study contribute valuable data for the manufacture of UNCD coatings as a new generation of superior dental implants. Full article
(This article belongs to the Special Issue Design, Fabrication, and Application of Nanomaterials in Dental Science and Dentistry)
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