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Special Issue "Advanced Progress in the Morphology and Surface of Dental Implant"

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

Deadline for manuscript submissions: closed (31 October 2021) | Viewed by 8958

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Prof. Dr. Gaetano Marenzi

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Department of Neurosciences, Reproduction and Odontostomatological Sciences, University of Naples Federico II Via S. Pansini 5, 80131 Napoli, Italy
Interests: osseointegration; tissue regeneration; platelet concentrates; implant surface; implant aesthetics
Special Issues, Collections and Topics in MDPI journals

Prof. Dr. Gianrico Spagnuolo

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Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples “Federico II”, 80131 Naples, Italy
Interests: oral medicine; dental materials; operative dentistry; oral health
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Dental Implantology has become a common method to treat full and partial edentulism. Clinical outcomes depend on many factors, including proper diagnostic and surgical procedures, careful choice of the devices, and proper follow-up. The surface topography, chemical–physical, and chemical properties of dental implants play a pivotal role in the healing process and in speeding up final restorations and functional loading even in sites with poor bone quality and patients with unbalanced healthy conditions.

This Special Issue on “Advanced Progress in the Morphology and Surface of Dental Implants” will address advances in fixture macro-morphology, fabrication technologies, models for implant manufacturing, and the effect of surface micro-topography on cell responses, protein adsorption, and/or antimicrobial properties.

The Special Issue is focused on the emerging concepts on the role of fixture macro-morphology and surface chemistry, topographical patterns at the micro- and nano-scale, addressing fast and successful osseo- and soft tissue integration.

Studies on surface micro- and macro-morphology, surface functionalization, and chemical and mechanical properties and their related effects on cells responses and on clinical outcomes are welcome.

Prof. Dr. Gaetano Marenzi
Prof. Gianrico Spagnuolo
Guest Editors

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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

Surface micro-topography
Implant production
Biocompatibility
contact angle
Surface characterization
Cell adhesion
Protein adhesion
Osteoblast differentiation
Osseointegration
Soft tissue healing
Hydrophilic

Published Papers (4 papers)

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Research

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Open AccessArticle

Surface Characterisation of Human Serum Albumin Layers on Activated Ti6Al4V

Margarita Hierro-Oliva

Amparo M. Gallardo-Moreno

and

María Luisa González-Martín

Materials 2021, 14(23), 7416; https://doi.org/10.3390/ma14237416 - 03 Dec 2021

Cited by 5 | Viewed by 1205

Abstract

Adpsortion of protein layers on biomaterials plays an important role in the interactions between implants and the bio-environment. In this context, human serum albumin (HSA) layers have been deposited on modified Ti6Al4V surfaces at different ultraviolet (UV-C) irradiation times to observe possible changes in the adsorbed protein layer. Protein adsorption was done from solutions at concentraions lower than the serum protein concentration, to follow the surface modifications at the beginning of the albumin adhesion process. For this purpose, the surface of the protein-coated samples has been characterized by time of flight secondary ion mass spectrometry (ToF-SIMS), contact angle and zeta potential measurements. The results obtained show a reduction in the total surface tension and zeta potential of samples treated with UV-C light when coated with a protein layer. Furthermore, the UV-C light treatment applied to titanium alloy surfaces is able to modify the conformation, orientation and packing of the proteins arranged in the adsorbed layer. Low irradiation time generates an unstable surface with the lowest protein adsorption and the highest hydrophobic/hydrophilic protein ratio, indicating a possible denaturalization of the protein on these surfaces. However, surface changes are stabilized after 15 h or UV-C irradiation, favoring the protein adsorption through electrical interactions. Full article

(This article belongs to the Special Issue Advanced Progress in the Morphology and Surface of Dental Implant)

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Open AccessArticle

Laser-Based Ablation of Titanium–Graphite Composite for Dental Application

and

Materials 2020, 13(10), 2312; https://doi.org/10.3390/ma13102312 - 18 May 2020

Cited by 4 | Viewed by 1967

Abstract

Biocompatible materials with excellent mechanical properties as well as sophisticated surface morphology and chemistry are required to satisfy the requirements of modern dental implantology. In the study described in this article, an industrial-grade fibre nanosecond laser working at 1064 nm wavelength was used to micromachine a new type of a biocompatible material, Ti-graphite composite prepared by vacuum low-temperature extrusion of hydrogenated-dehydrogenated (HDH) titanium powder mixed with graphite flakes. The effect of the total laser energy delivered to the material per area on the machined surface morphology, roughness, surface element composition and phases transformations was investigated and evaluated by means of scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), confocal laser-scanning microscopy (CLSM) and X-ray diffraction analysis (XRD). The findings illustrate that the amount of thermal energy put to the working material has a remarkable effect on the machined surface properties, which is discussed from the aspect of the contact properties of dental implants. Full article

(This article belongs to the Special Issue Advanced Progress in the Morphology and Surface of Dental Implant)

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Review

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Open AccessReview

Reversal of Osseointegration as a Novel Perspective for the Removal of Failed Dental Implants: A Review of Five Patented Methods

and

Materials 2021, 14(24), 7829; https://doi.org/10.3390/ma14247829 - 17 Dec 2021

Cited by 5 | Viewed by 2036

Abstract

Osseointegration is the basis of successful dental implantology and the foundation of cementless arthroplasty and the osseointegrated percutaneous prosthetic system. Osseointegration has been considered irreversible thus far. However, controlled heating or cooling of dental implants could selectively damage the bone at the bone–implant interface, causing the reversal of osseointegration or “osseodisintegration”. This review compares five methods for implant removal, published as patent documents between 2010 and 2018, which have not yet been discussed in the scientific literature. We describe these methods and evaluate their potential for reversing osseointegration. The five methods have several technical and methodological similarities: all methods include a handpiece, a connecting device for coronal access, and a controlling device, as well as the application of mechanical and/or thermal energy. The proposed method of quantifying the temperature with a sensor as the sole means for regulating the process seems inadequate. A database used in one of the methods, however, allows a more precise correlation between a selected implant and the energy needed for its removal, thus avoiding unnecessary trauma to the patient. A flapless, microinvasive, and bone-conserving approach for removing failed dental implants, facilitating successful reimplantation, would benefit dental implantology. These methods could be adapted to cementless medical implants and osseointegrated percutaneous prosthetics. However, for some of the methods discussed herein, further research may be necessary. Full article

(This article belongs to the Special Issue Advanced Progress in the Morphology and Surface of Dental Implant)

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Open AccessReview

The Use of Lasers in Dental Materials: A Review

Emmanouil-George C. Tzanakakis

and

Materials 2021, 14(12), 3370; https://doi.org/10.3390/ma14123370 - 18 Jun 2021

Cited by 13 | Viewed by 2775

Abstract

Lasers have been well integrated in clinical dentistry for the last two decades, providing clinical alternatives in the management of both soft and hard tissues with an expanding use in the field of dental materials. One of their main advantages is that they can deliver very low to very high concentrated power at an exact point on any substrate by all possible means. The aim of this review is to thoroughly analyze the use of lasers in the processing of dental materials and to enlighten the new trends in laser technology focused on dental material management. New approaches for the elaboration of dental materials that require high energy levels and delicate processing, such as metals, ceramics, and resins are provided, while time consuming laboratory procedures, such as cutting restorative materials, welding, and sintering are facilitated. In addition, surface characteristics of titanium alloys and high strength ceramics can be altered. Finally, the potential of lasers to increase the adhesion of zirconia ceramics to different substrates has been tested for all laser devices, including a new ultrafast generation of lasers. Full article

(This article belongs to the Special Issue Advanced Progress in the Morphology and Surface of Dental Implant)

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Special Issue "Advanced Progress in the Morphology and Surface of Dental Implant"

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