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Dental Biomaterials 2020
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Dental Biomaterials 2020

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Biomaterials".

Deadline for manuscript submissions: closed (28 February 2021) | Viewed by 11539

Special Issue Editors

Prof. Dr. Iulian Vasile Antoniac

E-Mail Website
Guest Editor
Faculty of Material Science and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei Street, District 6, 060042 Bucharest, Romania
Interests: biodegradable metallic biomaterials; medical devices; surface modification; tissue–biomaterials interaction; bioceramics; biocomposites; biointerfaces; tissue engineering; bone regeneration; retrieval and failure analysis of orthopedic and dental implants
Special Issues, Collections and Topics in MDPI journals
Dr. Earar Kamel

E-Mail Website
Guest Editor
Faculty of Medicine and Pharmacy, Universitatea „Dunărea de Jos” din Galați, Galați, Romana
Interests: biomaterials; implants; dental composites; bioceramics; metalo-ceramic prosthesis; surface analysis

Special Issue Information

Dear Colleagues,

New biomaterials are now playing a very important role in the development of modern dental medicine. The development and testing of dental biomaterials requires high-quality multidisciplinary research.

This Special Issue intends to offer comprehensive knowledge on biomaterials which have a main role in the engineering of functional dental tissue replacements, and will also provide studies on the application of the novel biomaterials in dentistry.

The development of new dental materials and processing techniques is expected to broaden the diversity of applications of biomaterials in dentistry. The progress in dental biomaterials research including dentin bonding, surface modification of the dental implants, dental adhesives, luting cements, glass ionomers, composites, and advanced ceramics clearly requires an improved understanding in multiple disciplines, as well as the development of new testing and design methodologies in order to obtain better biological performance in the oral environment.

For this Special Issue, we expect to receive papers related to the new topics in dental medicine correlated with dental biomaterials like the color stability of dental materials, in vitro studies about composites and cements, CAD/CAM systems, laser applications, and some biomechanical studies about oral implants.

The Editors hope that the present Special Issue will attract many interesting papers about the recent advances in dental biomaterials.

Prof. Dr. Antoniac Iulian
Dr. Earar Kamel
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. Materials 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 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

  • dental alloys
  • dental ceramics and composites
  • adhesives in dentistry
  • surface modification
  • tissue engineering in dentistry
  • dental implants
  • processing techniques for dental biomaterials

Published Papers (4 papers)

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Research

16 pages, 5619 KiB  
Article
Casting over Metal Method Used in Manufacturing Hybrid Cobalt-Chromium Dental Prosthetic Frameworks Assembles
by Willi Andrei Uriciuc, Horatiu Vermesan, Ancuta Elena Tiuc, Aranka Ilea, Adina Bianca Bosca and Catalin Ovidiu Popa
Materials 2021, 14(3), 539; https://doi.org/10.3390/ma14030539 - 23 Jan 2021
Cited by 6 | Viewed by 2771
Abstract
Cobalt–chromium (Co–Cr) alloys are the most widely used materials for removable and fixed dental prosthetic frameworks. The fitting accuracy between these components in dental prosthetic frameworks assembles (DPFAs) is largely influenced by the manufacturing method. This study presents a novel manufacturing method that [...] Read more.
Cobalt–chromium (Co–Cr) alloys are the most widely used materials for removable and fixed dental prosthetic frameworks. The fitting accuracy between these components in dental prosthetic frameworks assembles (DPFAs) is largely influenced by the manufacturing method. This study presents a novel manufacturing method that combined two common techniques for obtaining one single framework: casting of Co–Cr inserts on top of parts previously manufactured by selective laser melting (SLM) of Co–Cr powder (CoM). Horizontal (n = 4) and vertical (n = 3) surfaces were microscopically analyzed (n = 770 count sum). The results revealed a high precision of the process and high fitting accuracy between the hybrid frameworks. The average distance measured between the frameworks in joined position was 41.08 ± 7.56 µm. In conclusion, the manufacturing of Co–Cr alloys DPFA using the CoM method reduced the deformation of hybrid frameworks and improved the joining accuracy between them. Full article
(This article belongs to the Special Issue Dental Biomaterials 2020)
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16 pages, 2698 KiB  
Article
Assessment of Force Retention between Milled Metallic and Ceramic Telescopic Crowns with Different Taper Angles Used for Oral Rehabilitation
by Caroline Adela Ingrid Fischer, Doina Lucia Ghergic, Diana Maria Vranceanu, Stefan Alexandru Ilas, Raluca Monica Comaneanu, Florin Baciu and Cosmin Mihai Cotrut
Materials 2020, 13(21), 4814; https://doi.org/10.3390/ma13214814 - 28 Oct 2020
Cited by 8 | Viewed by 2362
Abstract
The present study assessed the retention forces corresponding to different telescopic systems used in removable prosthetic dentures. The telescopic systems were represented by Co–Cr alloy or zirconia-based primary crowns and Co–Cr secondary crowns. All crowns were manufactured using computer-aided design/computer-aided manufacturing technology (CAD/CAM). [...] Read more.
The present study assessed the retention forces corresponding to different telescopic systems used in removable prosthetic dentures. The telescopic systems were represented by Co–Cr alloy or zirconia-based primary crowns and Co–Cr secondary crowns. All crowns were manufactured using computer-aided design/computer-aided manufacturing technology (CAD/CAM). Two types of reference abutment teeth (upper canine and first upper molar) were selected in order to obtain the telescopic crowns and two taper angles—of 0° and 2°—were used for the design of the crowns. A number of 120 samples of telescopic crowns were obtained and subjected to mechanical tests, following a specific protocol, on a mechanical testing equipment. The retention of the telescopic systems was evaluated for different sets of cycles (up to 360), represented by movements that simulate the intraoral insertion and disinsertion of the telescopic systems. The present study highlights that the telescopic systems in which the primary crown is made of zirconia ceramics presents more advantages than those made of Co–Cr. All telescopic systems studied, highlighted that by modifying the taper angle from 0° to 2°, the retention forces have decreased, irrespective of the materials used for the fabrication of the primary crown, suggesting that by using a taper angle of 0°, which is known to be ideal, more efficient, and reliable prosthesis can be developed. Thus, even though the ceramic–metallic telescopic system exhibited the highest retention, all telescopic crowns evaluated registered values between 2–7 N, indicating that they are suitable for clinical use. Full article
(This article belongs to the Special Issue Dental Biomaterials 2020)
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14 pages, 2999 KiB  
Article
The Effectiveness of Laser-Activated Irrigation on the Apical Microleakage Qualities of MTA Repair HP and NeoMTA Plus in Simulated Immature Teeth: A Comparative Study
by Serenad Çırakoğlu, Buket Baddal and Aylin İslam
Materials 2020, 13(15), 3287; https://doi.org/10.3390/ma13153287 - 23 Jul 2020
Cited by 9 | Viewed by 2269
Abstract
There are limited data regarding the potential effect of erbium, chromium: yttrium–scandium–gallium–garnet (Er,Cr:YSGG) laser-activated irrigation (LAI) on the microleakage qualities of calcium silicate-based cements. The objective of the present study was to assess the effect of LAI on the microleakage qualities of MTA [...] Read more.
There are limited data regarding the potential effect of erbium, chromium: yttrium–scandium–gallium–garnet (Er,Cr:YSGG) laser-activated irrigation (LAI) on the microleakage qualities of calcium silicate-based cements. The objective of the present study was to assess the effect of LAI on the microleakage qualities of MTA Repair HP (MTA-HP) and NeoMTA Plus (Neo) used in root-end filling and to compare the antimicrobial effectiveness of MTA- HP. Two experimental sets were conducted: antimicrobial activity (agar diffusion test/at 24, 48 h) and microleakage (glucose leakage model/at 1st, 10th, 20th days). Antimicrobial activities of MTA-HP, Neo, Biodentine, ProRoot and MTA Angelus were evaluated, and inhibition zones were observed not only against a range of Gram-positive and Gram-negative bacteria but also against yeast at 48h. For microleakage evaluation, fifty teeth were prepared to simulate the clinical situation where the root-tips (apex) are open, and randomly divided into two experimental groups (n = 20/group) according to the cement type (MTA-HP and Neo), and two control (n = 5/group) groups. Each experimental group was further divided into two subgroups (n = 10/group) with respect to LAI: MTA-HP, L-HP, Neo, L-Neo. A statistical difference was only detected between Neo and L-HP groups on day 1. Subsequently, MTA-HP exhibited superior microleakage quality compared to Neo in the short-term. Er,Cr:YSGG laser-activated irrigation could be used as a reliable technique without creating adverse effects on the sealing abilities of MTA Repair HP and NeoMTA Plus. Full article
(This article belongs to the Special Issue Dental Biomaterials 2020)
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11 pages, 11731 KiB  
Article
Efficacy of the Rotary Instrument XP-Endo Finisher in the Removal of Calcium Hydroxide Intracanal Medicament in Combination with Different Irrigation Techniques: A Microtomographic Study
by Jameela Denna, Lubna A Shafie, Loai Alsofi, Mey Al-Habib and Emad AlShwaimi
Materials 2020, 13(10), 2222; https://doi.org/10.3390/ma13102222 - 12 May 2020
Cited by 11 | Viewed by 3029
Abstract
Objectives: This study aims to evaluate the efficacy of the rotary instrument XP-endo Finisher for the removal of Ca(OH)2 aided by different irrigation regimens. Methods: Sixteen double-rooted upper premolar human teeth were selected for the study. Thirty-two canals were prepared using a [...] Read more.
Objectives: This study aims to evaluate the efficacy of the rotary instrument XP-endo Finisher for the removal of Ca(OH)2 aided by different irrigation regimens. Methods: Sixteen double-rooted upper premolar human teeth were selected for the study. Thirty-two canals were prepared using a ProTaper Next rotary system up to X3. Then, the canals were filled with Ca(OH)2. The volume of Ca(OH)2 inside the canals was measured by microcomputed tomography (micro-CT). After that, the teeth were randomly allocated into two experimental groups, i.e., A and B (n = 16 canals). In group A, Ca(OH)2 was removed using the master apical file (X3). In group B, Ca(OH)2 was removed using a XP-endo finisher. In half of both groups (n = 8), syringe irrigation (SI) was used, while passive ultrasonic irrigation (PUI) was used for the other half. After removal, the remaining volume of Ca(OH)2 was measured. All data were statistically analyzed using two-way ANOVA with Tukey’s post hoc test. Results: The percentages of remaining Ca(OH)2 in the apical thirds of all canals were significantly higher as compared with the middle and coronal thirds in all groups (p < 0.05). There was no significant difference between different files and techniques (p > 0.05). Clinical Significance: This study presents a new method for the removal of Ca(OH)2 from root canals. Full article
(This article belongs to the Special Issue Dental Biomaterials 2020)
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