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Polymers
Special Issues
Composites for Dental Applications
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Composites for Dental Applications

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Applications".

Deadline for manuscript submissions: closed (15 July 2023) | Viewed by 3652

Special Issue Editors

Dr. Jose Roberto Bauer

E-Mail Website
Guest Editor
Departamento de Odontologia, Universidade Federal do Maranhão, Sao Luis, Brazil
Interests: dental materials; resin composite; adhesive system; bioactive dental materials;
Dr. Ceci Nunes Carvalho

E-Mail Website
Guest Editor
Department of Restorative Dentistry, School of Dentistry, Ceuma University (Uniceuma), São Luis, Maranhão 65065-470, Brazil
Interests: endodontic materials; bioactive glasses; endodontic sealers; regenetive materials;
Dr. Paulo Campos

E-Mail Website
Guest Editor
Department of Restorative Dentistry, Dental Materials Division, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba 13414-903, Brazil
Interests: bioactive dental composites; bioactive particles for dental polymeric materials applications; polymer for dental bonding

Special Issue Information

Dear Colleagues,

In recent years, a new generation of smart-polymer-based dental materials has been developed and launched on the market. Materials that promote the dental structure with mechanical reinforcement, as well as with ions which aid in remineralization, fight enzymes and bacteria without compromising aesthetics.

Additionally, these polymeric materials are used in all aspects of dentistry: restorative dentistry, dental prosthesis, endodontics, pediatrics, orthodontics and preventive dentistry.

The aim of this Special Issue is to provide information with updated findings regarding the latest developments in the field of dental materials. It is our pleasure to invite you to submit research papers (both in vivo and in vitro), short communications, or systematic reviews related to the topics of this Special Issue.

Dr. Jose Roberto Bauer
Dr. Ceci Nunes Carvalho
Dr. Paulo Campos
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. Polymers 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 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

  • dental materials
  • resin composite
  • bioactive materials
  • regenetive materials
  • adhesive system
  • mechanical properties
  • dentin

Published Papers (2 papers)

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Research

14 pages, 28955 KiB  
Article
Apical Sealing and Bioactivity of an Experimental Gutta-Percha Containing Niobium Phosphate Bioglass
by Ruan Ferreira Sampaio, Ceci Nunes Carvalho, Vivian Bradaschia-Correa, Bruna Laís Lins Gonçalves, Victor Arana-Chavez, Alexandre P. Lima de Carvalho, Amanda Palmeira Arruda Nogueira, Renata Grazziotin-Soares, José Bauer, Giulio Gavini and Edilausson Moreno Carvalho
Polymers 2023, 15(7), 1679; https://doi.org/10.3390/polym15071679 - 28 Mar 2023
Cited by 1 | Viewed by 1516
Abstract
This study evaluated the apical sealing ability and bioactivity of an experimental gutta-percha containing niobium phosphate bioglass. Thirty-six human premolars were endodontically prepared and divided into three groups: GPC—filling with conventional gutta-percha; GBC—filling with bioceramic gutta-percha (EndoSequence BC); GNB—filling with experimental gutta-percha containing [...] Read more.
This study evaluated the apical sealing ability and bioactivity of an experimental gutta-percha containing niobium phosphate bioglass. Thirty-six human premolars were endodontically prepared and divided into three groups: GPC—filling with conventional gutta-percha; GBC—filling with bioceramic gutta-percha (EndoSequence BC); GNB—filling with experimental gutta-percha containing niobophosphate. Teeth were stored in tubes containing 2 mL of simulated body fluid (SBF) solution in an oven for 30 days. Then, the samples were immersed in lanthanum nitrate solution and analyzed for apical nanoleakage (NI) with a scanning electron microscope (SEM/EDS) and transmission electron microscope (TEM). Gutta-percha specimens were immersed for 28 days (SBF) and analyzed in SEM/EDS and X-ray diffraction (XRD) to assess bioactivity. NI data originated from the SEM/EDS were analyzed using the Kruskal–Wallis test (α = 5%). NI data originated from TEM and bioactivity were descriptively reported. Statistical analysis did not detect a significant difference between groups (p = 0.13) for NI. In the bioactivity analysis, an abundant layer of hydroxyapatite was identified only in the surface of the GNB group samples. The gutta-percha containing niobophosphate bioglass promoted an apical sealing similar to EndoSequence BC, in addition to demonstrating bioactivity through the deposition of hydroxyapatite on the surface of the material after immersion in SBF. Full article
(This article belongs to the Special Issue Composites for Dental Applications)
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12 pages, 4886 KiB  
Article
Assessment of Physical/Mechanical Performance of Dental Resin Sealants Containing Sr-Bioactive Glass Nanoparticles and Calcium Phosphate
by Piyaphong Panpisut, Nannapat Praesuwatsilp, Phubet Bawornworatham, Parichart Naruphontjirakul, Somying Patntirapong and Anne M. Young
Polymers 2022, 14(24), 5436; https://doi.org/10.3390/polym14245436 - 12 Dec 2022
Cited by 2 | Viewed by 1528
Abstract
The aim of this study was to assess the chemical/mechanical properties of ion-releasing dental sealants containing strontium-bioactive glass nanoparticles (Sr-BGNPs) and monocalcium phosphate monohydrate (MCPM). Two experimental sealants, TS1 (10 wt% Sr-BGNPs and 2 wt% MCPM) and TS2 (5 wt% Sr-BGNPs and 4 [...] Read more.
The aim of this study was to assess the chemical/mechanical properties of ion-releasing dental sealants containing strontium-bioactive glass nanoparticles (Sr-BGNPs) and monocalcium phosphate monohydrate (MCPM). Two experimental sealants, TS1 (10 wt% Sr-BGNPs and 2 wt% MCPM) and TS2 (5 wt% Sr-BGNPs and 4 wt% MCPM), were prepared. Commercial controls were ClinproXT (CP) and BeautiSealant (BT). The monomer conversion (DC) was tested using ATR–FTIR (n = 5). The biaxial flexural strength (BFS) and modulus (BFM) were determined (n = 5) following 24 h and 7 days of immersion in water. The Vickers surface microhardness (SH) after 1 day in acetic acid (conc) versus water was tested (n = 5). The bulk and surface calcium phosphate precipitation in simulated body fluid was examined under SEM-EDX. The ion release at 4 weeks was analyzed using ICP-MS (n = 5). The DC after 40 s of light exposure of TS1 (43%) and TS2 (46%) was significantly lower than that of CP (58%) and BT (61%) (p < 0.05). The average BFS of TS1 (103 MPa), TS2 (123 MPa), and BT (94 MPa) were lower than that of CP (173 MPa). The average BFM and SH of TS1 (2.2 GPa, 19 VHN) and TS2 (2.0 GPa, 16 VHN) were higher than that of CP (1.6 GPa, 11 VHN) and BT (1.3 GPa, 12 VHN). TS1 showed higher Ca, P, and Sr release than TS2. Bulk calcium phosphate precipitation was detected on TS1 and TS2 suggesting some ion exchange. In conclusion, the DC of experimental sealants was lower than that of commercial materials, but their mechanical properties were within the acceptable ranges. The released ions may support remineralizing actions. Full article
(This article belongs to the Special Issue Composites for Dental Applications)
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