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Dental Materials Design and Innovative Treatment Approach

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A special issue of Dentistry Journal (ISSN 2304-6767). This special issue belongs to the section "Dental Materials".

Deadline for manuscript submissions: 30 June 2024 | Viewed by 10887

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Special Issue Editor

Prof. Dr. Patrizio Bollero

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Guest Editor

Department of System Medicine, University of Rome “Tor Vergata”, 00133 Rome, Italy
Interests: dental materials

Special Issue Information

Dear Colleagues,

In recent years, technological innovation has had exponential growth and this has also had positive implications in dentistry.

In the field of implantology, the development of bioactive surfaces and biomaterials has made it possible to enhance patient healing. In the field of prosthetics, the development of CAD-CAM technologies and the advent of intraoral and facial scanners have allowed a faster and increasingly tailor-made approach thanks also to the use of milled titanium bars and milled ceramic materials.

In the field of orthodontics, the advent of transparent aligners has drastically changed the approach to the patient in the developmental age.

This Special Issue is concerned with all aspects of all dental specialties dealing with this topic. The question we could ask ourselves is: what are the most interesting materials in all these fields of dentistry? How can the latest generation materials and technologies influence the patient care plan?

Prof. Dr. Patrizio Bollero
Guest Editor

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. Dentistry Journal 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 2000 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

bioactive implant surfaces
bioactive biomaterials
digital technologies
CAD-CAM
orthodontic aligners

Published Papers (6 papers)

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Editorial

Jump to: Research

2 pages, 183 KiB

Open AccessEditorial

Dental Materials Design and Innovative Treatment Approach

by Francesco Gianfreda and Patrizio Bollero

Dent. J. 2023, 11(3), 85; https://doi.org/10.3390/dj11030085 - 17 Mar 2023

Cited by 1 | Viewed by 1080

Abstract

In recent years, technological innovation has had exponential growth, resulting in positive implications in dentistry [...] Full article

(This article belongs to the Special Issue Dental Materials Design and Innovative Treatment Approach)

Research

Jump to: Editorial

12 pages, 2543 KiB

Open AccessArticle

Impact of Scanbody Geometry and CAD Software on Determining 3D Implant Position

by Judith Kropfeld, Lara Berger, Werner Adler, Katja Leonie Schulz, Constantin Motel, Manfred Wichmann and Ragai Edward Matta

Dent. J. 2024, 12(4), 94; https://doi.org/10.3390/dj12040094 - 03 Apr 2024

Viewed by 903

Abstract

The implementation of CAD software in the digital production of implant prosthetics stands as a pivotal aspect of clinical dentistry, necessitating high precision in the alignment of implant scanbodies. This study investigates the influence of scanbody geometry and the method of superimposing in CAD software when determining 3D implant position. A standardized titanium model with three bone-level implants was digitized to create reference STL files, and 10 intraoral scans were performed on Medentika and NT-Trading scanbodies. To determine implant position, the generated STL files were imported into the Exocad CAD software and superimposed—automatically and manually—with the scanbody geometries stored within the software’s shape library. Position accuracy was determined by a comparison of the 3D-defined scanbody points from the STL matching files with those from the reference STL files. The R statistical software was used for the evaluation of the data. In addition, mixed linear models and a significance level of 0.05 were applied to calculate the p-values. The manual overlay method was significantly more accurate than the automatic overlays for both scanbody types. The Medentika scanbodies showed slightly superior precision compared to the NT-Trading scanbodies. Both scanbody geometry and the type of alignment in the CAD software significantly affect digital workflow accuracy. Manual verification and adjustment of the automatic alignment process are essential for precise implant positioning. Full article

(This article belongs to the Special Issue Dental Materials Design and Innovative Treatment Approach)

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17 pages, 3848 KiB

Open AccessArticle

In Vitro Risk Assessment of Dental Acid Erosion Caused by Long-Term Exposure to Oral Liquid Bandages

by Ryouichi Satou and Naoki Sugihara

Dent. J. 2024, 12(3), 70; https://doi.org/10.3390/dj12030070 - 06 Mar 2024

Viewed by 952

Abstract

Oral mucosa inflammation can cause severe pain and interfere with eating, reducing quality of life. However, few options for self-care are available. An oral liquid bandage forms a protective film over the affected area. We aimed to assess the acid erosion risk when a newly developed oral liquid bandage (ORAPLA) is accidentally deposited on teeth and to examine the relative acid erosion risk at multiple time points of the maximum recommended duration of continuous use. ORAPLA was applied to both enamel and dentin blocks from 45 bovine anterior mandibular teeth, and an acid challenge was performed in a simulated oral cavity with artificial saliva, with one exposure cycle lasting 6 h. The enamel showed substantial defects and a decrease in Vickers hardness after nine cycles, with no change in surface roughness. Dentin showed an increase in parenchymal defects and surface roughness and a trend toward decreased Vickers hardness with increasing exposure time. We found no significant acid corrosion in enamel after up to nine times the upper limit of normal use time or in dentin after up to six times the upper limit. We conclude that the acid erosion risk due to accidental attachment to teeth is low, and in the human oral cavity with salivary buffering and remineralization, likely even lower. Full article

(This article belongs to the Special Issue Dental Materials Design and Innovative Treatment Approach)

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16 pages, 28168 KiB

Open AccessArticle

Effect of Different Silane Coupling Agents on the Bond Strength between Hydrogen Peroxide-Etched Epoxy-Based- Fiber-Reinforced Post and Composite Resin Core

by Sarah Adwani, Emad Elsubeihi, Ahmad Zebari, May Aljanahi, Keyvan Moharamzadeh and Haitham Elbishari

Dent. J. 2023, 11(6), 142; https://doi.org/10.3390/dj11060142 - 29 May 2023

Cited by 1 | Viewed by 1530

Abstract

The aim of the study was to evaluate the effect of various silane coupling agents on the micro-push-out bond strength between a hydrogen peroxide-etched epoxy-based fiber-reinforced post and composite resin core. Seventy-five cross-linked epoxy-based fiber-reinforced posts were etched with 24% hydrogen peroxide for 10 min. Then they were divided into five groups according to various silane coupling agents and bonded to a composite core. A Universal Testing Machine was utilized to evaluate the push-out bond strength. In addition, all groups’ modes of failure were assessed. The push-out bond strength data in MPa were analyzed using ANOVA and a Tukey HSD post hoc test to reveal any difference between the groups. Results revealed that the application of a two-bottle silane coupling agent exhibited the highest bond strength, while the application of a one-bottle silane coupling agent demonstrated the lowest bond strength for a hydrogen peroxide-etched fiber post bonded to a composite core material, which was statistically significant (p < 0.05). The strongest association with the highest bond strength was found with the two-bottle silane coupling agent when compared to the one-bottle. The study highlighted that the application of a silane-coupling agent may affect the bond strength between composite and epoxy-based fiber-reinforced posts. Full article

(This article belongs to the Special Issue Dental Materials Design and Innovative Treatment Approach)

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14 pages, 2619 KiB

Open AccessArticle

In Vitro Study of the Biological and Physical Properties of Dual-Cure Resin-Modified Calcium Silicate-Based Cement

by Minjung Kim, Sung-Hoon Lee and Dong-Hoon Shin

Dent. J. 2023, 11(5), 120; https://doi.org/10.3390/dj11050120 - 04 May 2023

Cited by 1 | Viewed by 1476

Abstract

Background: The aim of the present study was to compare the biological and mechanical properties of a novel dual-cure, resin-modified calcium silicate material, Theracal PT^® (TP), with those of Theracal LC^® (TL) and Biodentine^TM (BD). Methods: The cell counting kit-8 was used on human dental pulp cells to test cell the viability of the three materials. Antibacterial activity of TP, TL, and BD against Enterococcus faecalis was investigated under anaerobic conditions. The ability of the materials to support odontogenic differentiation was studied by examining the relative gene expression of osteocalcin (OCN), osteopontin (OPN), and Collagen I (ColI) using real-time polymerase chain reaction. For mechanical property tests, microhardness was evaluated using the Vickers microhardness (VHN) test, and the bond strength to the resin was evaluated using a shear bond test machine. Results: There was no significant difference in cell viability between TL and TP after 48 h, and BD showed the highest cell viability, while TP showed the highest antibacterial effect. At the 12-h time point, there was no significant difference in ColI and OCN expression between BD and TP, but TP showed a higher expression of OPN than BD. However, at the 48-h time point, ColI and OCN showed higher levels of expression for BD than for TP and TL. At the same time point, only OPN had a higher diffusion for TP than for BD. TP demonstrated a VHN of approximately 30–35. This value was higher than that of TL and lower than that of BD. In contrast to VHN, the shear bond strength to resin was significantly higher for TL and TP than for BD. Conclusion: TP showed lower biocompatibility than BD but higher OPN expression and antibacterial effects than BD and TL. TP showed higher shear bond strength than BD and higher VHN than TL and BD at the 24-h time point. Full article

(This article belongs to the Special Issue Dental Materials Design and Innovative Treatment Approach)

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17 pages, 4476 KiB

Open AccessArticle

Stamp Technique: An Explorative SEM Analysis

by Francesca Zotti, Stefano Vincenzi, Alessandro Zangani, Paolo Bernardi and Andrea Sbarbati

Dent. J. 2023, 11(3), 77; https://doi.org/10.3390/dj11030077 - 08 Mar 2023

Viewed by 4235

Abstract

Background: Achieving correct tooth anatomy and saving time at the dental chair are some of the goals of modern restorative dentistry. Stamp technique has gained acceptance in clinical practice. The aim of this study was to evaluate the effectiveness of this technique in terms of microleakage, voids, overhangs and marginal adaptation of Class I restorations, and to analyse the operative times in comparison with traditional restorative procedures. Methods: Twenty extracted teeth were divided into 2 groups. Ten teeth in the study group (SG) were Class I prepared and restored using stamp technique, and ten teeth in the control group (CG) were Class I restored traditionally. SEM analysis was performed to evaluate voids, microleakage, overhangs, and marginal adaptation, and operative times were recorded. A statistical analysis was performed. Results: There were no significant differences in microleakage, marginal adaptation and filling defects between the two groups, however, the stamp technique seems to facilitate the formation of large overflowing margins that require a careful finishing phase. Conclusions: Stamp technique does not seem to have any critical aspects in terms of restoration durability and it can be performed in a short time. Full article

(This article belongs to the Special Issue Dental Materials Design and Innovative Treatment Approach)

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