Journal
ACTA BIOMATERIALIA
Volume 121, Issue -, Pages 103-118Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.actbio.2020.11.024
Keywords
Atomic layer deposition; Surface functionalization; Dental implants; Osteointegration; Antibacterial
Funding
- National Science Foundation [NSF 1309114]
- Coordination for the Improvement of Higher Education Personnel (CAPES) in the PrINT-Program [88887.373422/2019-00]
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Surface functionalization is an important approach to improve and tune properties of dental materials. This review presents an overview of the state-of-the-art method of atomic layer deposition (ALD) in the field of dental materials, discussing its advantages and potential applications in enhancing the properties of dental materials. Studies on different ALD thin films and their effects on the surface properties, corrosion resistance, antibacterial activity, biofilm formation, and osteoblast compatibility of dental materials are highlighted, categorized into different stages based on the level of advancement reported. This review aims to provide a comprehensive understanding of the current research on using ALD for surface functionalization and property tuning in dental applications.
Surface functionalization is an effective approach to improve and enhance the properties of dental materials. A review of atomic layer deposition (ALD) in the field of dental materials is presented. ALD is a well-established thin film deposition technique. It is being used for surface functionalization in different technologies and biological related applications. With film thickness control down to Angstrom length scale and uniform conformal thin films even on complex 3D substrates, high quality thin films and their reproducibility are noteworthy advantages of ALD over other thin film deposition methods. Low temperature ALD allows temperature sensitive substrates to be functionalized with high quality ultra-thin films too. In the current work, ALD is elaborated as a promising method for surface modification of dental materials. Different aspects of conventional dental materials that can be enhanced using ALD are discussed. Also, the influence of different ALD thin films and their microstructure on the surface properties, corrosion-resistance, antibacterial activity, biofilm formation, and osteoblast compatibility are addressed. Depending on the stage of advancement for the studied materials reported in the literature, these studies are then categorized into four stages: fabrication & characterization, in vitro studies, in vivo studies, and human tests. Materials coated with ALD thin films with potential dental applications are also presented here and they are categorized as stage 1. The purpose of this review is to organize and present the up to date ALD research on dental materials. The current study can serve as a guide for future work on using ALD for surface functionalization and resulting property tuning of materials in real world dental applications. Statement of significance Surface functionalization is an important approach to improve and tune properties of dental materials. Here, an overview on the state-of-art method of atomic layer deposition (ALD) in the field of dental materials is presented. For this critical review, an electronic search was conducted in the databases Google Scholar, Pubmed, Scopus, Web of Science and Scifinder, using the keywords: atomic layer deposition, dental material, dental implants, poly methyl methacrylate, Ti6Al4V, collagen, cobalt chromium, stainless steel, dental fillers, and osteointegration. Inclusion criteria are: no time limit of publication, only in the English language, and relationships between ALD and dental materials through clinical, animal, and in vitro investigations. (c) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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