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Orthodontic Biomaterials: From the Past to the Present
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Orthodontic Biomaterials: From the Past to the Present

A special issue of Journal of Functional Biomaterials (ISSN 2079-4983). This special issue belongs to the section "Dental Biomaterials".

Deadline for manuscript submissions: closed (20 May 2024) | Viewed by 5333

Special Issue Editors

Prof. Dr. Yasushi Nishii

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Guest Editor
Department of Orthodontics, Tokyo Dental College, 2-9-18, Kandamisaki-Cho, Chiyoda-Ku, Tokyo 101-0061, Japan
Interests: orthodontics; temporary anchorage devices; surgical orthodontics; tooth movement
Dr. Satoru Matsunaga

E-Mail Website
Guest Editor
Department of Anatomy, Tokyo Dental College, 2-9-18, Kandamisaki-Cho, Chiyoda-Ku, Tokyo 101-0061, Japan
Interests: anatomy; biomechanics; dental implant; bone quality; biological apatite (BAp) orientation; collagen fiber anisotropy; finite element (FE) analysis
Dr. Keisuke Sugahara

E-Mail Website
Guest Editor
Department of Oral Pathobiological Science and Surgery, Tokyo Dental College, 2-9-18, Kandamisaki-Cho, Chiyoda-Ku, Tokyo 101-0061, Japan
Interests: oral and maxillofacial surgery; oral cancer; molecular biology; pathology; wound healing; extended reality technology

Special Issue Information

Dear Colleagues,

It is our pleasure to invite you to contribute to this Special Issue of Journal of Functional Biomaterials concerning new approaches in the field.

In recent years, there have been significant advances in technology and materials in orthodontic treatment.

In terms of technology, the application of 3DCT to diagnosis, the improved accuracy of intraoral scanners, the development of 3D printers, 3D computer simulations, and telemedicine using virtual reality are all significant advances in digital technology that will change the concept of orthodontic treatment in the future.

In the field of materials, free-friction brackets, new flexible wires, digitally set-up brackets and wires, and aligner materials are evolving in tandem with advances in digital technology.

In this Special Issue entitled “Orthodontic Biomaterials: From the Past to the Present”, we will explore the most recent orthodontic materials and the most advanced technologies in orthodontic and surgical orthodontic treatment.

In this regard, we welcome the submission of basic and clinical studies proposing new materials and technologies in this specific field, as well as literature reviews. In addition, case reports and case series involving the above topics will also be considered.

Prof. Dr. Yasushi Nishii
Dr. Satoru Matsunaga
Dr. Keisuke Sugahara
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. Journal of Functional Biomaterials 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 2700 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

  • orthodontics
  • dental materials
  • technologies
  • temporary anchorage devices
  • diagnosis
  • aligners
  • digital technologies
  • 3D FEM
  • 3D analysis and simulation
  • virtual reality

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Published Papers (3 papers)

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Research

14 pages, 2841 KiB  
Article
Physico-Mechanical Properties and Bonding Performance of Graphene-Added Orthodontic Adhesives
by Shiyao Liu, Ahmed El-Angbawi, Vinicius Rosa and Nick Silikas
J. Funct. Biomater. 2024, 15(8), 204; https://doi.org/10.3390/jfb15080204 - 24 Jul 2024
Viewed by 1328
Abstract
This study aimed to assess the key physico-mechanical properties and bonding performance of orthodontic adhesives with graphene addition for bonding a fixed retainer. Transbond LR (3M) and Transbond LV (3M) with no graphene were set as the control groups. Graphene was added into [...] Read more.
This study aimed to assess the key physico-mechanical properties and bonding performance of orthodontic adhesives with graphene addition for bonding a fixed retainer. Transbond LR (3M) and Transbond LV (3M) with no graphene were set as the control groups. Graphene was added into LR and LV at concentrations of 0.01 wt%, 0.05 wt% and 0.1 wt%. The stickiness of the uncured samples (n = 5) and real-time degree of conversion (DC) of the samples (n = 3) were measured over a 24-h period using Fourier-transform infrared spectroscopy. The hardness and other mechanical parameters, including the Martens hardness (HM), indentation modulus (EIT), elastic index (ηIT) and creep (CIT), were measured (n = 5). To measure the shear bond strength (SBS), adhesive composites were applied using a mold to bond the retainer wire to the lingual surfaces of bovine incisors (n = 10). Fracture modes subsequent to the SBS test were examined under light microscopy. Statistical analysis was conducted using ANOVA and Tukey tests (α = 0.05). In the LR groups, the LR + 0.01 showed the highest SBS (12.6 ± 2.0 MPa) and HM (539.4 ± 17.9 N/mm2), while the LV + 0.05 (7.7 ± 1.1 MPa) had the highest SBS and the LV + 0.1 had the highest HM (312.4 ± 17.8 N/mm2) among the LV groups. The most frequent failure mode observed was adhesive fracture followed by mixed fracture. No statistical difference was found between the graphene-added groups and the control groups in terms of the EIT, ηIT and CIT, except that the CIT was significantly lower in the LR + 0.01 than in the control group. Graphene addition had no significant adverse effect on the stickiness and DC of both LR and LV. Full article
(This article belongs to the Special Issue Orthodontic Biomaterials: From the Past to the Present)
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12 pages, 1486 KiB  
Article
Biocompatibility of Subperiosteal Dental Implants: Changes in the Expression of Osteogenesis-Related Genes in Osteoblasts Exposed to Differently Treated Titanium Surfaces
by Marco Roy, Elisa Chelucci, Alessandro Corti, Lorenzo Ceccarelli, Mauro Cerea, Barbara Dorocka-Bobkowska, Alfonso Pompella and Simona Daniele
J. Funct. Biomater. 2024, 15(6), 146; https://doi.org/10.3390/jfb15060146 - 27 May 2024
Viewed by 1366
Abstract
The use of endosseous dental implants may become unfeasible in the presence of significant maxillary bone atrophy; thus, surgical techniques have been proposed to promote bone regeneration in such cases. However, such techniques are complex and may expose the patient to complications. Subperiosteal [...] Read more.
The use of endosseous dental implants may become unfeasible in the presence of significant maxillary bone atrophy; thus, surgical techniques have been proposed to promote bone regeneration in such cases. However, such techniques are complex and may expose the patient to complications. Subperiosteal implants, being placed between the periosteum and the residual alveolar bone, are largely independent of bone thickness. Such devices had been abandoned due to the complexity of positioning and adaptation to the recipient bone site, but are nowadays witnessing an era of revival following the introduction of new acquisition procedures, new materials, and innovative manufacturing methods. We have analyzed the changes induced in gene and protein expression in C-12720 human osteoblasts by differently surface-modified TiO2 materials to verify their ability to promote bone formation. The TiO2 materials tested were (i) raw machined, (ii) electropolished with acid mixture, (iii) sand-blasted + acid-etched, (iv) AlTiColorTM surface, and (v) anodized. All five surfaces efficiently stimulated the expression of markers of osteoblastic differentiation, adhesion, and osteogenesis, such as RUNX2, osteocalcin, osterix, N-cadherin, β-catenin, and osteoprotegerin, while cell viability/proliferation was unaffected. Collectively, our observations document that presently available TiO2 materials are well suited for the manufacturing of modern subperiosteal implants. Full article
(This article belongs to the Special Issue Orthodontic Biomaterials: From the Past to the Present)
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Graphical abstract

12 pages, 4480 KiB  
Article
Alveolar Bone Microstructure Surrounding Orthodontic Anchor Screws with Plasma Surface Treatment in Rats
by Keisuke Okawa, Satoru Matsunaga, Norio Kasahara, Masaaki Kasahara, Chie Tachiki, Takayoshi Nakano, Shinichi Abe and Yasushi Nishii
J. Funct. Biomater. 2023, 14(7), 356; https://doi.org/10.3390/jfb14070356 - 7 Jul 2023
Cited by 1 | Viewed by 1707
Abstract
A lateral load was applied to anchor screws that had undergone surface treatment, and the structure, cellular dynamics, and quality of the bone surrounding anchor screws were analyzed to investigate the effect of this surface treatment on the peri-implant jawbone. In addition, bone [...] Read more.
A lateral load was applied to anchor screws that had undergone surface treatment, and the structure, cellular dynamics, and quality of the bone surrounding anchor screws were analyzed to investigate the effect of this surface treatment on the peri-implant jawbone. In addition, bone microstructural characteristics were quantitatively evaluated for each site of loading on the bone around the anchor screw. Rats were euthanized after observation on days 3, 5, or 7, and bone quality analyses were performed. Bone–implant contact rate increased more rapidly at an early stage in the treated surface group than in the untreated surface group. Bone lacuna morphometry showed that the measured values adjacent to the screw at the screw neck on the compressed side (A) and at the screw tip on the uncompressed side (D) were significantly lower than those at the screw tip on the compressed side (B) and at the screw neck on the uncompressed side (C). Collagen fiber bundle diameter showed that the measured values adjacent to regions A and D were significantly higher than those at regions B and C. Anchor screw surface activation facilitates initial bone contact of the screw, suggesting that early loading may be possible in clinical practice. Full article
(This article belongs to the Special Issue Orthodontic Biomaterials: From the Past to the Present)
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