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Gregar F, Gallo J, Milde D, Hegrová J, Kučerová P, Grepl J, Pluháček T. In vivo assessment of TiO 2 based wear nanoparticles in periprosthetic tissues. Anal Bioanal Chem 2024; 416:3785-3796. [PMID: 38724776 PMCID: PMC11180632 DOI: 10.1007/s00216-024-05320-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 03/20/2024] [Accepted: 04/25/2024] [Indexed: 06/18/2024]
Abstract
A multimodal approach combining inductively coupled plasma mass spectrometry (ICP-MS), single-particle ICP-MS (spICP-MS), scanning electron microscopy-energy-dispersive X-ray spectroscopy (SEM-EDS) and Raman spectroscopy enabled a deeper insight into the balance between total titanium (Ti), the soluble titanium fraction and titanium dioxide based particle fraction levels in periprosthetic tissues collected from patients undergoing revision surgery. Hydrofluoric acid usage in the sample digestion allowed for complete digestion of TiO2 particles, thus enabling accurate estimation of total Ti levels. The TiO2 fraction represents 38-94% of the titanium load in the six samples where particles were detected, and the fraction is present mainly in samples from patients with aseptically loosened total hip arthroplasty. Further attention was given to this fraction determining the elemental composition, particle count, particle size and modification of TiO2. The spICP-MS analysis confirmed the presence of the TiO2-derived (nano)particles (NPs) with a 39- to 187-nm median size and particle count up to 2.3 × 1011 particles per gram of tissue. On top of that, the SEM-EDS confirmed the presence of the TiO2 nanoparticles with 230-nm median size and an anatase crystal phase was determined by Raman spectroscopy. This study presents a novel multimodal approach for TiO2 particle determination and characterization in tissue samples and is the first in vivo study of this character.
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Affiliation(s)
- Filip Gregar
- Department of Analytical Chemistry, Faculty of Science, Palacký University Olomouc, 17. listopadu 12, Olomouc, 771 46, Czech Republic
| | - Jiří Gallo
- Department of Orthopaedics, Faculty of Medicine and Dentistry, Palacký University Olomouc, University Hospital Olomouc, I. P. Pavlova 6, Olomouc, 77520, Czech Republic
| | - David Milde
- Department of Analytical Chemistry, Faculty of Science, Palacký University Olomouc, 17. listopadu 12, Olomouc, 771 46, Czech Republic
| | - Jitka Hegrová
- Transport Research Centre, Division of Sustainable Transport and Transport Structures Diagnostics, Líšeňská 33a, Brno, 619 00, Czech Republic
| | - Pavla Kučerová
- Department of Analytical Chemistry, Faculty of Science, Palacký University Olomouc, 17. listopadu 12, Olomouc, 771 46, Czech Republic
| | - Jakub Grepl
- Department of Analytical Chemistry, Faculty of Science, Palacký University Olomouc, 17. listopadu 12, Olomouc, 771 46, Czech Republic
| | - Tomáš Pluháček
- Department of Analytical Chemistry, Faculty of Science, Palacký University Olomouc, 17. listopadu 12, Olomouc, 771 46, Czech Republic.
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Kandaswamy E, Harsha M, Joshi VM. Titanium corrosion products from dental implants and their effect on cells and cytokine release: A review. J Trace Elem Med Biol 2024; 84:127464. [PMID: 38703537 DOI: 10.1016/j.jtemb.2024.127464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Revised: 04/17/2024] [Accepted: 04/22/2024] [Indexed: 05/06/2024]
Abstract
INTRODUCTION Titanium is considered to be an inert material owing to the ability of the material to form a passive titanium oxide layer. However, once the titanium oxide layer is lost, it can lead to exposure of the underlying titanium substructure and can undergo corrosion. SUMMARY The article explores the role of titanium ions and particles from dental implants on cells, cytokine release, and on the systemic redistribution of these particles as well as theories proposed to elucidate the effects of these particles on peri-implant inflammation based on evidence from in-vitro, human, and animal studies. Titanium particles and ions have a pro-inflammatory and cytotoxic effect on cells and promote the release of pro-inflammatory mediators like cytokines. Three theories to explain etiopathogenesis have been proposed, one based on microbial dysbiosis, the second based on titanium particles and ions and the third based on a synergistic effect between microbiome and titanium particles on the host. CONCLUSION There is clear evidence from in-vitro and limited human and animal studies that titanium particles released from dental implants have a detrimental effect on cells directly and through the release of pro-inflammatory cytokines. Future clinical and translational studies are required to clarify the role of titanium particles and ions in peri-implant inflammation and the etiopathogenesis of peri-implantitis.
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Affiliation(s)
- Eswar Kandaswamy
- Department of Periodontics, LSUHSC, School of Dentistry, 100 Florida Avenue, New Orleans, LA 70119, USA
| | - M Harsha
- Department of Oral Pathology & Microbiology, Yogita Dental College & Hospital, Naringi Riverside, At Post Tal Dist. SH104, Khed, Maharashtra 415709, India
| | - Vinayak M Joshi
- Department of Periodontics, LSUHSC, School of Dentistry, 100 Florida Avenue, New Orleans, LA 70119, USA.
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Barrak FN, Li S. From manufacturers to clinicians, the release of dental implant particles can no longer be ignored. Clin Implant Dent Relat Res 2024; 26:663-667. [PMID: 38369955 DOI: 10.1111/cid.13309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 01/03/2024] [Accepted: 01/19/2024] [Indexed: 02/20/2024]
Affiliation(s)
- Fadi N Barrak
- School of Medicine and Dentistry, University of Central Lancashire, Preston, UK
- VSS Academy Training and Education Ltd., London, UK
| | - Siwei Li
- VSS Academy Training and Education Ltd., London, UK
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Angermair J, Iglhaut G, Meyenberg K, Wiest W, Rack A, Zabler S, Fretwurst T, Nelson K, Kernen F. In vitro assessment of internal implant-abutment connections with different cone angles under static loading using synchrotron-based radiation. BMC Oral Health 2024; 24:396. [PMID: 38549137 PMCID: PMC10976688 DOI: 10.1186/s12903-024-04156-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 03/18/2024] [Indexed: 04/01/2024] Open
Abstract
BACKGROUND The stability of implant-abutment connection is crucial to minimize mechanical and biological complications. Therefore, an assessment of the microgap behavior and abutment displacement in different implant-abutment designs was performed. METHODS Four implant systems were tested, three with a conical implant-abutment connection based on friction fit and a cone angle < 12 ° (Medentika, Medentis, NobelActive) and a system with an angulated connection (< 40°) (Semados). In different static loading conditions (30 N - 90º, 100 N - 90º, 200 N - 30º) the microgap and abutment displacement was evaluated using synchrotron-based microtomography and phase-contrast radioscopy with numerical forward simulation of the optical Fresnel propagation yielding an accuracy down to 0.1 μm. RESULTS Microgaps were present in all implant systems prior to loading (0.15-9 μm). Values increased with mounting force and angle up to 40.5 μm at an off axis loading of 100 N in a 90° angle. CONCLUSIONS In contrast to the implant-abutment connection with a large cone angle (45°), the conical connections based on a friction fit (small cone angles with < 12°) demonstrated an abutment displacement which resulted in a deformation of the outer implant wall. The design of the implant-abutment connection seems to be crucial for the force distribution on the implant wall which might influence peri-implant bone stability.
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Affiliation(s)
| | - Gerhard Iglhaut
- Department of Oral and Maxillofacial Surgery, Translational Implantology, Medical Center, Faculty of Medicine, University of Freiburg, Hugstetter Strasse 55, 79106, Freiburg, Germany
| | | | - Wolfram Wiest
- Chair of X-ray Microscopy LRM, University Würzburg, 97074, Würzburg, Germany
| | - Alexander Rack
- Experiments Division, ESRF - The European Synchrotron, Grenoble, France
| | - Simon Zabler
- Deggendorf Institute of Technology DIT, Dieter-Görlitz-Platz 2, 94469, Deggendorf, Germany
| | - Tobias Fretwurst
- Department of Oral and Maxillofacial Surgery, Translational Implantology, Medical Center, Faculty of Medicine, University of Freiburg, Hugstetter Strasse 55, 79106, Freiburg, Germany
| | - Katja Nelson
- Department of Oral and Maxillofacial Surgery, Translational Implantology, Medical Center, Faculty of Medicine, University of Freiburg, Hugstetter Strasse 55, 79106, Freiburg, Germany
| | - Florian Kernen
- Department of Oral and Maxillofacial Surgery, Translational Implantology, Medical Center, Faculty of Medicine, University of Freiburg, Hugstetter Strasse 55, 79106, Freiburg, Germany.
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Berglundh T, Mombelli A, Schwarz F, Derks J. Etiology, pathogenesis and treatment of peri-implantitis: A European perspective. Periodontol 2000 2024. [PMID: 38305506 DOI: 10.1111/prd.12549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 12/19/2023] [Accepted: 12/22/2023] [Indexed: 02/03/2024]
Abstract
Peri-implantitis is a plaque-associated pathological condition occurring in tissues around dental implants. It is characterized by inflammation in the peri-implant mucosa and progressive loss of supporting bone. Over the last 30 years, peri-implantitis has become a major disease burden in dentistry. An understanding of the diagnosis, etiology and pathogenesis, epidemiology, and treatment of peri-implantitis must be a central component in undergraduate and postgraduate training programs in dentistry. In view of the strong role of European research in periodontology and implant dentistry, the focus of this review was to address peri-implantitis from a European perspective. One component of the work was to summarize new and reliable data on patients with dental implants to underpin the relevance of peri-implantitis from a population perspective. The nature of the peri-implantitis lesion was evaluated through results presented in preclinical models and evaluations of human biopsy material together with an appraisal of the microbiological characteristics. An overview of strategies and outcomes presented in clinical studies on nonsurgical and surgical treatment of peri-implantitis is discussed with a particular focus on end points of therapy and recommendations presented in the S3 level Clinical Practice Guideline for the prevention and treatment of peri-implant diseases.
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Affiliation(s)
- Tord Berglundh
- Department of Periodontology, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Andrea Mombelli
- Division of Regenerative Dental Medicine and Periodontology, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland
| | - Frank Schwarz
- Department of Oral Surgery and Implantology, Goethe University, Carolinum, Frankfurt, Germany
| | - Jan Derks
- Department of Periodontology, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Insua A, Galindo-Moreno P, Miron RJ, Wang HL, Monje A. Emerging factors affecting peri-implant bone metabolism. Periodontol 2000 2024; 94:27-78. [PMID: 37904311 DOI: 10.1111/prd.12532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 08/05/2023] [Accepted: 09/10/2023] [Indexed: 11/01/2023]
Abstract
Implant dentistry has evolved to the point that standard implant osseointegration is predictable. This is attributed in part to the advancements in material sciences that have led toward improvements in implant surface technology and characteristics. Nonetheless, there remain several cases where implant therapy fails (specifically at early time points), most commonly attributed to factors affecting bone metabolism. Among these patients, smokers are known to have impaired bone metabolism and thus be subject to higher risks of early implant failure and/or late complications related to the stability of the peri-implant bone and mucosal tissues. Notably, however, emerging data have unveiled other critical factors affecting osseointegration, namely, those related to the metabolism of bone tissues. The aim of this review is to shed light on the effects of implant-related factors, like implant surface or titanium particle release; surgical-related factors, like osseodensification or implanted biomaterials; various drugs, like selective serotonin reuptake inhibitors, proton pump inhibitors, anti-hypertensives, nonsteroidal anti-inflammatory medication, and statins, and host-related factors, like smoking, diet, and metabolic syndrome on bone metabolism, and aseptic peri-implant bone loss. Despite the infectious nature of peri-implant biological complications, these factors must be surveyed for the effective prevention and management of peri-implantitis.
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Affiliation(s)
- Angel Insua
- Department of Periodontology and Oral Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Pablo Galindo-Moreno
- Department of Periodontology and Oral Medicine, University of Michigan, Ann Arbor, Michigan, USA
- Department of Oral Surgery and Implant Dentistry, University of Granada, Granada, Spain
| | - Richard J Miron
- Department of Periodontology, University of Bern, Bern, Switzerland
| | - Hom-Lay Wang
- Department of Periodontology and Oral Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Alberto Monje
- Department of Periodontology and Oral Medicine, University of Michigan, Ann Arbor, Michigan, USA
- Department of Periodontology, University of Bern, Bern, Switzerland
- Department of Periodontology, Universitat Internacional de Catalunya, Barcelona, Spain
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Alamoudi A. Nanoengineering and Surface Modifications of Dental Implants. Cureus 2024; 16:e51526. [PMID: 38304686 PMCID: PMC10833059 DOI: 10.7759/cureus.51526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/13/2023] [Indexed: 02/03/2024] Open
Abstract
Dental implants are one of the most important and successful advancements in modern dentistry. One aspect of dental implant design that influences the rate and degree of osseointegration is implant surface features. Nano-engineering techniques are anticipated to improve titanium dentistry implants' surface characteristics, which in turn promote peri-implant osteogenesis. In this paper, we review the recent advances in nanosurface engineering techniques for enhancing the bioactivity of dental implants.
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Chen L, Tong Z, Luo H, Qu Y, Gu X, Si M. Titanium particles in peri-implantitis: distribution, pathogenesis and prospects. Int J Oral Sci 2023; 15:49. [PMID: 37996420 PMCID: PMC10667540 DOI: 10.1038/s41368-023-00256-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/25/2023] [Accepted: 10/30/2023] [Indexed: 11/25/2023] Open
Abstract
Peri-implantitis is one of the most important biological complications in the field of oral implantology. Identifying the causative factors of peri-implant inflammation and osteolysis is crucial for the disease's prevention and treatment. The underlying risk factors and detailed pathogenesis of peri-implantitis remain to be elucidated. Titanium-based implants as the most widely used implant inevitably release titanium particles into the surrounding tissue. Notably, the concentration of titanium particles increases significantly at peri-implantitis sites, suggesting titanium particles as a potential risk factor for the condition. Previous studies have indicated that titanium particles can induce peripheral osteolysis and foster the development of aseptic osteoarthritis in orthopedic joint replacement. However, it remains unconfirmed whether this phenomenon also triggers inflammation and bone resorption in peri-implant tissues. This review summarizes the distribution of titanium particles around the implant, the potential roles in peri-implantitis and the prevalent prevention strategies, which expects to provide new directions for the study of the pathogenesis and treatment of peri-implantitis.
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Affiliation(s)
- Long Chen
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, China
- Department of Stomatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zian Tong
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, China
| | - Hongke Luo
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, China
| | - Yuan Qu
- Zhejiang University-University of Edinburgh Institute, International Campus, Zhejiang University, Haining, China
| | - Xinhua Gu
- Department of Stomatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
| | - Misi Si
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, China.
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9
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Chen S, Xing Z, Geng M, Zhao R, Yang X, Zhu X, Anderson JM, Zhang X. Macrophage fusion event as one prerequisite for inorganic nanoparticle-induced antitumor response. SCIENCE ADVANCES 2023; 9:eadd9871. [PMID: 37467339 PMCID: PMC10355827 DOI: 10.1126/sciadv.add9871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 06/15/2023] [Indexed: 07/21/2023]
Abstract
While most nanomaterials are designed to assist tumor therapy, some inorganic nanoparticles have been reported to impede cancer development. We assume that the immune response elicited by these foreign nanoparticles might be associated with the remodeling of immune landscape in the tumor microenvironment (TME). We studied representative inorganic nanoparticles widely used in the biomedical field and first demonstrated that needle-shaped hydroxyapatite (n-nHA), granule-shaped hydroxyapatite, and silicon dioxide can effectively impair tumor progression in vivo. Substantial multinucleated giant cells (MNGCs) were formed around these antitumor nanoparticles, while the ratio of monocytes and macrophages was decreased in the TME. We found that high expression of the STXBP6 protein induced by n-nHA-treated macrophages triggers autophagy, which markedly promotes macrophage fusion into MNGCs. In this way, extensive depletion of tumor-associated macrophages in the TME was achieved, which suppressed tumor growth and metastasis. This intrinsic antitumor immunity of inorganic nanoparticles should not be neglected when designing future nanomedicines to treat cancer.
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Affiliation(s)
- Siyu Chen
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Zhengyi Xing
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Mengyu Geng
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Rui Zhao
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Xiao Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Xiangdong Zhu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - James M. Anderson
- Departments of Pathology, Biomedical Engineering and Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
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Mallineni SK, Sakhamuri S, Kotha SL, AlAsmari ARGM, AlJefri GH, Almotawah FN, Mallineni S, Sajja R. Silver Nanoparticles in Dental Applications: A Descriptive Review. Bioengineering (Basel) 2023; 10:327. [PMID: 36978718 PMCID: PMC10044905 DOI: 10.3390/bioengineering10030327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/15/2023] [Accepted: 03/01/2023] [Indexed: 03/08/2023] Open
Abstract
Silver nanoparticles have been a recent focus of many researchers in dentistry, and their potential uses and benefits have drawn attention in dentistry and medicine. The fabrication and utilization of nanoscale substances and structures are at the core of the rapidly developing areas of nanotechnology. They are often used in the dental industry because they prevent bacteria from making nanoparticles, oxides, and biofilms. They also stop the metabolism of bacteria. Silver nanoparticles (AgNPs) are a type of zero-dimensional material with different shapes. Dentistry has to keep up with changing patient needs and new technology. Silver nanoparticles (AgNPs) can be used in dentistry for disinfection and preventing infections in the oral cavity. One of the most interesting metallic nanoparticles used in biomedical applications is silver nanoparticles (AgNPs). The dental field has found promising uses for silver nanoparticles (AgNPs) in the elimination of plaque and tartar, as well as the elimination of bacterial and fungal infections in the mouth. The incorporation of AgNPs into dental materials has been shown to significantly enhance patients' oral health, leading to their widespread use. This review focuses on AgNP synthesis, chemical properties, biocompatibility, uses in various dental fields, and biomaterials used in dentistry. With an emphasis on aspects related to the inclusion of silver nanoparticles, this descriptive review paper also intends to address the recent developments of AgNPs in dentistry.
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Affiliation(s)
- Sreekanth Kumar Mallineni
- Pediatric Dentistry, Dr. Sulaiman Al Habib Hospital, Ar Rayyan, Riyadh 14212, Saudi Arabia
- Division for Globalization Initiative, Liaison Center for Innovative Dentistry, Graduate School of Dentistry, Tohoku University, Sendai 980-8575, Japan
- Center for Transdisciplinary Research (CFTR), Saveetha Institute of Medical and Technical Sciences, Saveetha Dental College, Saveetha University, Chennai 600077, Tamil Nadu, India
| | - Srinivasulu Sakhamuri
- Department of Conservative Dentistry & Endodontics, Narayana Dental College and Hospital, Nellore 523004, Andhra Pradesh, India
| | - Sree Lalita Kotha
- Department of Basic Dental Sciences, College of Dentistry, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | | | | | - Fatmah Nasser Almotawah
- Preventive Dentistry Department, Pediatric Dentistry Division, College of Dentistry, Riyadh Elm University, Riyadh 13244, Saudi Arabia
| | - Sahana Mallineni
- Department of Periodontology, Krishna Institute of Medical Sciences, Nellore 523001, Andhra Pradesh, India
| | - Rishitha Sajja
- Clinical Data Management, Global Data Management and Centralized Monitoring, Global Development Operations, Bristol Myers Squibb, Pennington, NJ 07922, USA
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Welle A, Rabel K, Schwotzer M, Kohal RJ, Steinberg T, Altmann B. Identification of Zirconia Particle Uptake in Human Osteoblasts by ToF-SIMS Analysis and Particle-Size Effects on Cell Metabolism. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4272. [PMID: 36500895 PMCID: PMC9736599 DOI: 10.3390/nano12234272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
As the use of zirconia-based nano-ceramics is rising in dentistry, the examination of possible biological effects caused by released nanoparticles on oral target tissues, such as bone, is gaining importance. The aim of this investigation was to identify a possible internalization of differently sized zirconia nanoparticles (ZrNP) into human osteoblasts applying Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS), and to examine whether ZrNP exposure affected the metabolic activity of the cells. Since ToF-SIMS has a low probing depth (about 5 nm), visualizing the ZrNP required the controlled erosion of the sample by oxygen bombardment. This procedure removed organic matter, uncovering the internalized ZrNP and leaving the hard particles practically unaffected. It was demonstrated that osteoblasts internalized ZrNP within 24 h in a size-dependent manner. Regarding the cellular metabolic activity, metabolization of alamarBlue by osteoblasts revealed a size- and time-dependent unfavorable effect of ZrNP, with the smallest ZrNP exerting the most pronounced effect. These findings point to different uptake efficiencies of the differently sized ZrNP by human osteoblasts. Furthermore, it was proven that ToF-SIMS is a powerful technique for the detection of zirconia-based nano/microparticles that can be applied for the cell-based validation of clinically relevant materials at the nano/micro scale.
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Affiliation(s)
- Alexander Welle
- Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
- Institute of Functional Interfaces, Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - Kerstin Rabel
- Department of Prosthetic Dentistry, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg im Breisgau, Germany
| | - Matthias Schwotzer
- Institute of Functional Interfaces, Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - Ralf Joachim Kohal
- Department of Prosthetic Dentistry, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg im Breisgau, Germany
| | - Thorsten Steinberg
- Department of Oral Biotechnology, Center for Dental Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg im Breisgau, Germany
| | - Brigitte Altmann
- Department of Prosthetic Dentistry, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg im Breisgau, Germany
- G.E.R.N. Research Center for Tissue Replacement, Regeneration & Neogenesis, Department of Prosthetic Dentistry, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79085 Freiburg im Breisgau, Germany
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Tschiche HR, Bierkandt FS, Creutzenberg O, Fessard V, Franz R, Greiner R, Gruber-Traub C, Haas KH, Haase A, Hartwig A, Hesse B, Hund-Rinke K, Iden P, Kromer C, Loeschner K, Mutz D, Rakow A, Rasmussen K, Rauscher H, Richter H, Schoon J, Schmid O, Som C, Spindler LM, Tovar GEM, Westerhoff P, Wohlleben W, Luch A, Laux P. Analytical and toxicological aspects of nanomaterials in different product groups: Challenges and opportunities. NANOIMPACT 2022; 28:100416. [PMID: 35995388 DOI: 10.1016/j.impact.2022.100416] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 07/15/2022] [Accepted: 08/14/2022] [Indexed: 06/15/2023]
Abstract
The widespread integration of engineered nanomaterials into consumer and industrial products creates new challenges and requires innovative approaches in terms of design, testing, reliability, and safety of nanotechnology. The aim of this review article is to give an overview of different product groups in which nanomaterials are present and outline their safety aspects for consumers. Here, release of nanomaterials and related analytical challenges and solutions as well as toxicological considerations, such as dose-metrics, are discussed. Additionally, the utilization of engineered nanomaterials as pharmaceuticals or nutraceuticals to deliver and release cargo molecules is covered. Furthermore, critical pathways for human exposure to nanomaterials, namely inhalation and ingestion, are discussed in the context of risk assessment. Analysis of NMs in food, innovative medicine or food contact materials is discussed. Specific focus is on the presence and release of nanomaterials, including whether nanomaterials can migrate from polymer nanocomposites used in food contact materials. With regard to the toxicology and toxicokinetics of nanomaterials, aspects of dose metrics of inhalation toxicity as well as ingestion toxicology and comparison between in vitro and in vivo conclusions are considered. The definition of dose descriptors to be applied in toxicological testing is emphasized. In relation to potential exposure from different products, opportunities arising from the use of advanced analytical techniques in more unique scenarios such as release of nanomaterials from medical devices such as orthopedic implants are addressed. Alongside higher product performance and complexity, further challenges regarding material characterization and safety, as well as acceptance by the general public are expected.
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Affiliation(s)
- Harald R Tschiche
- German Federal Institute for Risk Assessment (BfR), Department of Chemical and Product Safety, Berlin, Germany.
| | - Frank S Bierkandt
- German Federal Institute for Risk Assessment (BfR), Department of Chemical and Product Safety, Berlin, Germany
| | - Otto Creutzenberg
- Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), Hannover, Germany
| | - Valerie Fessard
- French Agency for Food, Environmental and Occupational Health & Safety (ANSES), Fougères Laboratory, Toxicology of contaminants Unit, Fougères, France
| | - Roland Franz
- Fraunhofer Institute for Process Engineering and Packaging (IVV), Freising, Germany
| | - Ralf Greiner
- Department of Food Technology and Bioprocess Engineering, Max Rubner-Institut, Karlsruhe, Germany
| | - Carmen Gruber-Traub
- Fraunhofer Institute for Interfacial Engineering and Biotechnology (IGB), Stuttgart, Germany
| | - Karl-Heinz Haas
- Fraunhofer Institute for Silicate Research (ISC), Würzburg, Germany
| | - Andrea Haase
- German Federal Institute for Risk Assessment (BfR), Department of Chemical and Product Safety, Berlin, Germany
| | - Andrea Hartwig
- Karlsruhe Institute of Technology (KIT), Institute of Applied Biosciences (IAB), Food Chemistry and Toxicology, Germany
| | - Bernhard Hesse
- European Synchrotron Radiation Facility, Grenoble, France
| | - Kerstin Hund-Rinke
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Schmallenberg, Germany
| | | | - Charlotte Kromer
- German Federal Institute for Risk Assessment (BfR), Department of Chemical and Product Safety, Berlin, Germany
| | - Katrin Loeschner
- National Food Institute, Technical University of Denmark, Lyngby, Denmark
| | - Diana Mutz
- German Federal Institute for Risk Assessment (BfR), Research Strategy and Coordination, Berlin, Germany
| | - Anastasia Rakow
- Charité - Universitätsmedizin Berlin, Center for Musculoskeletal Surgery, Berlin, Germany; Center for Orthopaedics, Trauma Surgery and Rehabilitation Medicine, University Medicine Greifswald, Greifswald, Germany
| | | | - Hubert Rauscher
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Hannes Richter
- Fraunhofer IKTS - Institute for Ceramic Technologies and Systems, Hermsdorf, Germany
| | - Janosch Schoon
- Center for Orthopaedics, Trauma Surgery and Rehabilitation Medicine, University Medicine Greifswald, Greifswald, Germany; Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Julius Wolff Institute, Berlin, Germany
| | - Otmar Schmid
- Comprehensive Pneumology Center (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany; Institute of Lung Health and Immunity, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
| | - Claudia Som
- Technology and Society Laboratory, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland
| | - Lena M Spindler
- Fraunhofer Institute for Interfacial Engineering and Biotechnology (IGB), Stuttgart, Germany; University of Stuttgart, Institute of Interfacial Process Engineering and Plasma Technology (IGVP), Stuttgart, Germany
| | - Günter E M Tovar
- Fraunhofer Institute for Interfacial Engineering and Biotechnology (IGB), Stuttgart, Germany; University of Stuttgart, Institute of Interfacial Process Engineering and Plasma Technology (IGVP), Stuttgart, Germany
| | - Paul Westerhoff
- Arizona State University, Tempe, AZ, United States of America
| | | | - Andreas Luch
- German Federal Institute for Risk Assessment (BfR), Department of Chemical and Product Safety, Berlin, Germany
| | - Peter Laux
- German Federal Institute for Risk Assessment (BfR), Department of Chemical and Product Safety, Berlin, Germany
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13
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Asa'ad F, Thomsen P, Kunrath MF. The Role of Titanium Particles and Ions in the Pathogenesis of Peri-Implantitis. J Bone Metab 2022; 29:145-154. [PMID: 36153850 PMCID: PMC9511127 DOI: 10.11005/jbm.2022.29.3.145] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 08/18/2022] [Indexed: 11/22/2022] Open
Abstract
Titanium (Ti) particles and ions have been investigated in recent years as important factors in the pathogenesis of peri-implantitis. However, their role in the pathogenesis is yet to be fully understood. A review of pertinent literature was performed in various databases to determine the current position of Ti particles and ions role in the pathogenesis of peri-implantitis. There are several in vitro, preclinical and clinical published studies that have addressed the role of Ti particles and ions in the pathogenesis of peri-implantitis. These studies explored the effect of Ti particles and ions in the pathogenesis of peri-implantitis with respect to foreign body reaction, cellular response, epigenetic mechanisms, namely DNA methylation, and the oral microbiome. Studies have shown that the release of Ti particles/ions during implant insertion, early healing stages, late healing stages, and treatments during peri-implantitis might contribute to peri-implantitis through different mechanisms, such as foreign body reaction, cellular response, DNA methylation, and shaping the oral microbiome by increasing dysbiosis. However, further studies are needed to elucidate the complex interactions between all these mechanisms and Ti particles/ions in the pathogenesis and progression of peri-implantitis.
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Affiliation(s)
- Farah Asa'ad
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Oral Biochemistry, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Peter Thomsen
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Marcel F Kunrath
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Dentistry, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
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14
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Stricker A, Bergfeldt T, Fretwurst T, Addison O, Schmelzeisen R, Rothweiler R, Nelson K, Gross C. Impurities in commercial titanium dental implants - A mass and optical emission spectrometry elemental analysis. Dent Mater 2022; 38:1395-1403. [PMID: 35781168 DOI: 10.1016/j.dental.2022.06.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 06/19/2022] [Accepted: 06/22/2022] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Titanium (Ti) is considered bioinert and is still regarded as the "gold standard" material for dental implants. However, even 'commercial pure' Ti will contain minor fractions of elemental impurities. Evidence demonstrating the release of Ti ions and particles from 'passive' implant surfaces is increasing and has been attributed to biocorrosion processes which may provoke immunological reactions. However, Ti observed in peri-implant tissues has been shown to be co-located with elements considered impurities in biomedical alloys. Accordingly, this study aimed to quantify the composition of impurities in commercial Ti dental implants. METHODS Fifteen commercial titanium dental implant systems were analyzed using inductively coupled plasma-mass spectrometry (ICP-MS) and optical emission spectrometry (ICP-OES). RESULTS The elemental composition of implants manufactured from commercially pure grades of Ti, Ti-6Al-4V, and the TiZr alloy (Roxolid) conformed to the respective ISO/ASTM standards or manufacturers´ data (TiZr/Roxolid). However, all implants investigated included exogenous metal contaminants including Ni, Cr, Sb, and Nb to a variable extent. Other contaminants detected in a fraction of implants included As and the radionuclides U-238 and Th-232. SIGNIFICANCE Although all Ti implant studies conformed with their standard compositions, potentially allergenic, noxious metals and even radionuclides were detected. Since there are differences in the degree of contamination between the implant systems, a certain impurity fraction seems technically avoidable. The clinical relevance of these findings must be further investigated, and an adaptation of industry standards should be discussed.
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Affiliation(s)
- Andres Stricker
- Department of Oral and Maxillofacial Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106 Freiburg im Breisgau, Germany.
| | - Thomas Bergfeldt
- Institute of Applied Materials - Applied Material Physics (IAM-AWP), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
| | - Tobias Fretwurst
- Department of Oral and Maxillofacial Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106 Freiburg im Breisgau, Germany.
| | - Owen Addison
- Centre for Oral, Clinical & Translational Sciences, Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, Guy's Hospital, Great Maze Pond, SE1 9RT London, UK.
| | - Rainer Schmelzeisen
- Department of Oral and Maxillofacial Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106 Freiburg im Breisgau, Germany.
| | - René Rothweiler
- Department of Oral and Maxillofacial Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106 Freiburg im Breisgau, Germany.
| | - Katja Nelson
- Department of Oral and Maxillofacial Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106 Freiburg im Breisgau, Germany.
| | - Christian Gross
- Department of Oral and Maxillofacial Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106 Freiburg im Breisgau, Germany.
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15
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Schoon J, Hesse B, Tucoulou R, Geissler S, Ort M, Duda GN, Perka C, Wassilew GI, Perino G, Rakow A. Synchrotron-based characterization of arthroprosthetic CoCrMo particles in human bone marrow. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2022; 33:54. [PMID: 35691951 PMCID: PMC9189090 DOI: 10.1007/s10856-022-06675-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 05/18/2022] [Indexed: 06/15/2023]
Abstract
Particles released from cobalt-chromium-molybdenum (CoCrMo) alloys are considered common elicitors of chronic inflammatory adverse effects. There is a lack of data demonstrating particle numbers, size distribution and elemental composition of bone marrow resident particles which would allow for implementation of clinically relevant test strategies in bone marrow models at different degrees of exposure. The aim of this study was to investigate metal particle exposure in human periprosthetic bone marrow of three types of arthroplasty implants. Periprosthetic bone marrow sections from eight patients exposed to CoCrMo particles were analyzed via spatially resolved and synchrotron-based nanoscopic X-ray fluorescence imaging. These analyses revealed lognormal particle size distribution patterns predominantly towards the nanoscale. Analyses of particle numbers and normalization to bone marrow volume and bone marrow cell number indicated particle concentrations of up to 1 × 1011 particles/ml bone marrow or 2 × 104 particles/bone marrow cell, respectively. Analyses of elemental ratios of CoCrMo particles showed that particularly the particles' Co content depends on particle size. The obtained data point towards Co release from arthroprosthetic particles in the course of dealloying and degradation processes of larger particles within periprosthetic bone marrow. This is the first study providing data based on metal particle analyses to be used for future in vitro and in vivo studies of possible toxic effects in human bone marrow following exposure to arthroprosthetic CoCrMo particles of different concentration, size, and elemental composition. Graphical abstract.
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Affiliation(s)
- Janosch Schoon
- Center for Orthopaedics, Trauma Surgery and Rehabilitation Medicine, University Medicine Greifswald, 17475, Greifswald, Germany.
- Julius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany.
| | - Bernhard Hesse
- Xploraytion GmbH, 10625, Berlin, Germany.
- ESRF-The European Synchrotron, 38000, Grenoble, France.
| | - Remi Tucoulou
- ESRF-The European Synchrotron, 38000, Grenoble, France
| | - Sven Geissler
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Melanie Ort
- Julius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Georg N Duda
- Julius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Carsten Perka
- Center for Musculoskeletal Surgery, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Georgi I Wassilew
- Center for Orthopaedics, Trauma Surgery and Rehabilitation Medicine, University Medicine Greifswald, 17475, Greifswald, Germany
| | - Giorgio Perino
- Center for Orthopaedics, Trauma Surgery and Rehabilitation Medicine, University Medicine Greifswald, 17475, Greifswald, Germany
| | - Anastasia Rakow
- Center for Orthopaedics, Trauma Surgery and Rehabilitation Medicine, University Medicine Greifswald, 17475, Greifswald, Germany
- Center for Musculoskeletal Surgery, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
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16
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Suuronen JP, Hesse B, Langer M, Bohner M, Villanova J. Evaluation of imaging setups for quantitative phase contrast nanoCT of mineralized biomaterials. JOURNAL OF SYNCHROTRON RADIATION 2022; 29:843-852. [PMID: 35511016 PMCID: PMC9070718 DOI: 10.1107/s1600577522003137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 03/23/2022] [Indexed: 05/19/2023]
Abstract
X-ray nano-tomography with phase contrast (nanoCT) using synchrotron radiation is a powerful tool to non-destructively investigate 3D material properties at the nanoscale. In large bone lesions, such as severe bone fractures, bone cancer or other diseases, bone grafts substituting the lost bone might be necessary. Such grafts can be of biological origin or be composed of a synthetic bone substitute. The long-term functioning of artificial bone substitutes depends on many factors. Synchrotron nanoCT imaging has great potential to contribute to further the understanding of integration of implants into bone tissue by imaging the spatial interaction between bone tissue and implant, and by accessing the interface between implant material and bone tissue. With this aim, a methodology for evaluating the image quality is presented for in-line phase contrast nanoCT images of bone scaffold samples. A PMMA-embedded tricalcium phosphate scaffold was used with both a closed and an open porosity structure and bone ingrowths as a representative system of three known materials. Parameters such as spatial resolution and signal-to-noise ratio were extracted and used to explore and quantitatively compare the effects of implementation choices in the imaging setup, such as camera technology and imaging energy, on the resulting image quality. Increasing the X-ray energy from 17.5 keV to 29.6 keV leads to a notable improvement in image quality regardless of the camera technology used, with the two tested camera setups performing at a comparable level when the recorded intensity was kept constant.
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Affiliation(s)
- Jussi-Petteri Suuronen
- Xploraytion, Bismarckstrasse 10-12, 10625 Berlin, Germany
- ESRF – The European Synchrotron, 71 Avenue des Martyrs, 38043 Grenoble, France
| | - Bernhard Hesse
- Xploraytion, Bismarckstrasse 10-12, 10625 Berlin, Germany
- ESRF – The European Synchrotron, 71 Avenue des Martyrs, 38043 Grenoble, France
| | - Max Langer
- University of Lyon, INSA-Lyon, Université Claude Bernard Lyon 1, UJM-Saint Etienne, CNRS, Inserm, CREATIS UMR 5220, U1206, 69621 Lyon, France
- University of Grenoble Alpes, CNRS, UMR 5525, VetAgro Sup, Grenoble INP, TIMC, 38000 Grenoble, France
| | - Marc Bohner
- RMS Foundation, Bischmattstrasse 12, 2544 Bettlach, Switzerland
| | - Julie Villanova
- ESRF – The European Synchrotron, 71 Avenue des Martyrs, 38043 Grenoble, France
- Correspondence e-mail:
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17
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Diez-García S, Sánchez-Martín MJ, Amigo JM, Valiente M. Combination of Two Synchrotron Radiation-Based Techniques and Chemometrics to Study an Enhanced Natural Remineralization of Enamel. Anal Chem 2022; 94:5359-5366. [PMID: 35319204 PMCID: PMC8988122 DOI: 10.1021/acs.analchem.1c05498] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
The limitations to
assess dental enamel remineralization have been
overcome by a methodology resulting from the appropriate combination
of synchrotron radiation-based techniques on both, infrared microspectroscopy
and micro X-ray diffraction, with the help of specific data mining.
Since amelogenin plays a key role in modulating the mineralization
of tooth enamel, we propose a controlled ion release for fluorapatite
structural ions (Ca2+, PO43–, and F–, also including Zn2+) by using
weak acid and weak base ion-exchange resins in the presence of amelogenin
to remineralize the surface of etched teeth. This combination provides
the necessary ions for enamel remineralization and a guide for crystal
growth due to the protein. Remineralized tooth samples were analyzed
by applying the indicated methodology. The synchrotron data were treated
using principal component analysis and multivariate curve resolution
to analyze the mineral layer formed in the presence and absence of
amelogenin. The remineralizing treatment created a fluorapatite layer
free of carbonate impurities and with a similar orientation to that
of the natural enamel thanks to amelogenin contribution.
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Affiliation(s)
- Sandra Diez-García
- GTS Research Group, Department of Chemistry, Faculty of Science, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - María-Jesús Sánchez-Martín
- GTS Research Group, Department of Chemistry, Faculty of Science, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - José Manuel Amigo
- Ikerbasque, Basque Foundation for Science, María Díaz de Haro, 48013 Bilbao, Spain.,Department of Analytical Chemistry, University of the Basque Country UPV/EHU, P.O. Box 644, 15 48080 Bilbao, Basque Country, Spain
| | - Manuel Valiente
- GTS Research Group, Department of Chemistry, Faculty of Science, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
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18
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Accioni F, Vázquez J, Merinero M, Begines B, Alcudia A. Latest Trends in Surface Modification for Dental Implantology: Innovative Developments and Analytical Applications. Pharmaceutics 2022; 14:pharmaceutics14020455. [PMID: 35214186 PMCID: PMC8876580 DOI: 10.3390/pharmaceutics14020455] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/15/2022] [Accepted: 02/18/2022] [Indexed: 12/27/2022] Open
Abstract
An increase in the world population and its life expectancy, as well as the ongoing concern about our physical appearance, have elevated the relevance of dental implantology in recent decades. Engineering strategies to improve the survival rate of dental implants have been widely investigated, focusing on implant material composition, geometry (usually guided to reduce stiffness), and interface surrounding tissues. Although efforts to develop different implant surface modifications are being applied in commercial dental prostheses today, the inclusion of surface coatings has gained special interest, as they can be tailored to efficiently enhance osseointegration, as well as to reduce bacterial-related infection, minimizing peri-implantitis appearance and its associated risks. The use of biomaterials to replace teeth has highlighted the need for the development of reliable analytical methods to assess the therapeutic benefits of implants. This literature review considers the state-of-the-art strategies for surface modification or coating and analytical methodologies for increasing the survival rate for teeth restoration.
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Affiliation(s)
- Francesca Accioni
- Departamento de Química Orgánica y Farmacéutica, Universidad de Sevilla, 41012 Seville, Spain; (F.A.); (M.M.)
| | - Juan Vázquez
- Departamento de Química Orgánica, Universidad de Sevilla, 41012 Seville, Spain;
| | - Manuel Merinero
- Departamento de Química Orgánica y Farmacéutica, Universidad de Sevilla, 41012 Seville, Spain; (F.A.); (M.M.)
- Departamento de Citología e Histología Normal y Patológica, Universidad de Sevilla, 41012 Seville, Spain
| | - Belén Begines
- Departamento de Química Orgánica y Farmacéutica, Universidad de Sevilla, 41012 Seville, Spain; (F.A.); (M.M.)
- Correspondence: (B.B.); (A.A.)
| | - Ana Alcudia
- Departamento de Química Orgánica y Farmacéutica, Universidad de Sevilla, 41012 Seville, Spain; (F.A.); (M.M.)
- Correspondence: (B.B.); (A.A.)
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Prestat M, Thierry D. Corrosion of titanium under simulated inflammation conditions: clinical context and in vitro investigations. Acta Biomater 2021; 136:72-87. [PMID: 34626820 DOI: 10.1016/j.actbio.2021.10.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/15/2021] [Accepted: 10/01/2021] [Indexed: 01/01/2023]
Abstract
Titanium and alloys thereof are widely utilized for biomedical applications in the fields of orthopedics and dentistry. The corrosion resistance and perceived biocompatibility of such materials are essentially related to the presence of a thin passive oxide layer on the surface. However, during inflammation phases, the immune system and its leukocytic cells generate highly aggressive molecules, such as hydrogen peroxide and radicals, that can significantly alter the passive film resulting in the degradation of the titanium implants. In combination with mechanical factors, this can lead to the release of metal ions, nanoparticles or microscaled debris in the surrounding tissues (which may sustain chronic inflammation), bring about relevant health issues and contribute to implant loss or failure. After briefly presenting the context of inflammation, this review article analyses the state-of-the-art knowledge of the in vitro corrosion of titanium, titanium alloys and coated titanium by reactive oxygen species and by living cells with an emphasis on electrochemical and microstructural aspects. STATEMENT OF SIGNIFICANCE: Inflammation involves the production of reactive oxygen species that are known to alter the passive layer protecting titanium implants against the aggressive environment of the human body. Inflammatory processes therefore contribute to the deterioration of biomedical devices. Although review articles on biomaterials for implant applications are regularly published in the literature, none has ever focused specifically on the topic of inflammation. After briefly recalling the clinical context, this review analyses the in vitro studies on titanium corrosion under simulated inflammation conditions from the pioneer works of the 80s and the 90s till the most recent investigations. It reports about the status of this research area for a multidisciplinary readership covering the fields of materials science, corrosion and implantology.
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Affiliation(s)
- M Prestat
- French Corrosion Institute - RISE, 220 rue Pierre Rivoalon, 29200 Brest, France.
| | - D Thierry
- French Corrosion Institute - RISE, 220 rue Pierre Rivoalon, 29200 Brest, France; Research Institutes of Sweden (RISE), Stockholm, Sweden
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20
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Jung O, Hesse B, Stojanovic S, Seim C, Weitkamp T, Batinic M, Goerke O, Kačarević ŽP, Rider P, Najman S, Barbeck M. Biocompatibility Analyses of HF-Passivated Magnesium Screws for Guided Bone Regeneration (GBR). Int J Mol Sci 2021; 22:ijms222212567. [PMID: 34830451 PMCID: PMC8624161 DOI: 10.3390/ijms222212567] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 11/19/2021] [Accepted: 11/19/2021] [Indexed: 11/17/2022] Open
Abstract
Background: Magnesium (Mg) is one of the most promising materials for human use in surgery due to material characteristics such as its elastic modulus as well as its resorbable and regenerative properties. In this study, HF-coated and uncoated novel bioresorbable magnesium fixation screws for maxillofacial and dental surgical applications were investigated in vitro and in vivo to evaluate the biocompatibility of the HF coating. Methods: Mg alloy screws that had either undergone a surface treatment with hydrofluoric-acid (HF) or left untreated were investigated. In vitro investigation included XTT, BrdU and LDH in accordance with the DIN ISO 10993-5/-12. In vivo, the screws were implanted into the tibia of rabbits. After 3 and 6 weeks, degradation, local tissue reactions and bony integration were analyzed histopathologically and histomorphometrically. Additionally, SEM/EDX analysis and synchrotron phase-contrast microtomography (µCT) measurements were conducted. The in vitro analyses revealed that the Mg screws are cytocompatible, with improved results when the surface had been passivated with HF. In vivo, the HF-treated Mg screws implanted showed a reduction in gas formation, slower biodegradation and a better bony integration in comparison to the untreated Mg screws. Histopathologically, the HF-passivated screws induced a layer of macrophages as part of its biodegradation process, whereas the untreated screws caused a slight fibrous tissue reaction. SEM/EDX analysis showed that both screws formed a similar layer of calcium phosphates on their surfaces and were surrounded by bone. Furthermore, the µCT revealed the presence of a metallic core of the screws, a faster absorbing corrosion front and a slow absorbing region of corroded magnesium. Conclusions: Overall, the HF-passivated Mg fixation screws showed significantly better biocompatibility in vitro and in vivo compared to the untreated screws.
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Affiliation(s)
- Ole Jung
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, 18057 Rostock, Germany;
| | | | - Sanja Stojanovic
- Department of Biology and Human Genetics, Faculty of Medicine, University of Niš, 18108 Niš, Serbia; (S.S.); (S.N.)
- Scientific Research Center for Biomedicine, Faculty of Medicine, Department for Cell and Tissue Engineering, University of Niš, 18108 Niš, Serbia
| | | | - Timm Weitkamp
- Synchrotron SOLEIL, Gif-sur-Yvette, 91190 Saint-Aubin, France;
| | - Milijana Batinic
- Department of Ceramic Materials, Chair of Advanced Ceramic Materials, Institute for Materials Science and Technologies, Technical University of Berlin, 10623 Berlin, Germany; (M.B.); (O.G.)
- Department of Anatomy Histology, Embryology, Pathology Anatomy and Pathology Histology, Faculty of Dental Medicine and Health, University of Osijek, 31000 Osijek, Croatia;
| | - Oliver Goerke
- Department of Ceramic Materials, Chair of Advanced Ceramic Materials, Institute for Materials Science and Technologies, Technical University of Berlin, 10623 Berlin, Germany; (M.B.); (O.G.)
| | - Željka Perić Kačarević
- Department of Anatomy Histology, Embryology, Pathology Anatomy and Pathology Histology, Faculty of Dental Medicine and Health, University of Osijek, 31000 Osijek, Croatia;
| | - Patrick Rider
- Department of Anatomy Histology, Embryology, Pathology Anatomy and Pathology Histology, Faculty of Dental Medicine and Health, University of Osijek, 31000 Osijek, Croatia;
| | - Stevo Najman
- Department of Biology and Human Genetics, Faculty of Medicine, University of Niš, 18108 Niš, Serbia; (S.S.); (S.N.)
- Scientific Research Center for Biomedicine, Faculty of Medicine, Department for Cell and Tissue Engineering, University of Niš, 18108 Niš, Serbia
| | - Mike Barbeck
- Department of Anatomy Histology, Embryology, Pathology Anatomy and Pathology Histology, Faculty of Dental Medicine and Health, University of Osijek, 31000 Osijek, Croatia;
- Correspondence: ; Tel.: +49-176-810-224-6
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