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Bertotti K, Mwenge-Wambel J, Sireix C, Hüe O, Jeannin C, Grosgogeat B. Accurate analysis of titanium and PolyEtherEtherKetone materials as an alternative to cobalt-chrome framework in removable partial denture: A systematic review. Dent Mater 2024:S0109-5641(24)00237-9. [PMID: 39191558 DOI: 10.1016/j.dental.2024.07.036] [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: 03/18/2024] [Revised: 07/26/2024] [Accepted: 07/31/2024] [Indexed: 08/29/2024]
Abstract
STATEMENT OF PROBLEM New materials have emerged in the dental field to replace the cobalt-chrome (CoCr) alloy used for the metal frameworks in removable partial denture (RPD) such as Titanium (Ti) and PolyEtherEtherKetone (PEEK). However, few studies have demonstrated their mechanical and biological performance. PURPOSE The purpose of this systematic review was to compare the performance of Ti and PEEK in RPD using CoCr metal framework as a reference. MATERIAL AND METHODS This review follows the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Three data bases were analyzed, including PubMed/MEDLINE, Embase and Web of Science before March 2024. Only studies assessing the mechanical and/or biological properties of RPD in Ti, PEEK and CoCr were included. The quality of the studies was assessed by using the software Rayyan. The risks of bias were assessed with the methodological index for nonrandomized studies (MINORS). The mechanical (retention force, fatigue life, deformation strength, machinability, rigidity, porosity and surface roughness) and biological (plaque indices, ion release and biocompatibility) aspects were assessed. RESULTS Among 138 articles identified, only 18 studies were included in this review. Majority had a low to moderate risk of bias. Retention forces and fatigue were significantly lower for Ti and PEEK than for CoCr, and the same was true for Ti rigidity. PEEK showed less deformation. Both materials were suitable for machining. In terms of biological properties, both materials showed adequate biocompatibility for clinical use. CONCLUSION Ti and PEEK seems to be promising as alternative materials to CoCr frameworks for RPD, in terms of both their mechanical and biological performance. However, additional studies are needed to better understand their clinical and long-term limitations to enable the best-informed clinical choice for the patients and the professionals.
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Affiliation(s)
- Karine Bertotti
- Laboratoire des Multimatériaux et Interfaces, CNRS, LMI UMR 5615, Universite Claude Bernard Lyon 1, Universite de Lyon, F-69622 Villeurbanne, France; Fox3D Dental Solutions, F-47450 Colayrac St Cirq, France.
| | - Julia Mwenge-Wambel
- Laboratoire des Multimatériaux et Interfaces, CNRS, LMI UMR 5615, Universite Claude Bernard Lyon 1, Universite de Lyon, F-69622 Villeurbanne, France; Faculte d'Odontologie, Universite Claude Bernard Lyon 1, Universite de Lyon, F-69008 Lyon, France
| | | | - Olivier Hüe
- École de Médecine Dentaire Marseille, CNRS UMR 7268 ADES, Universite de Aix-Marseille, F-13000 Marseille, France
| | - Christophe Jeannin
- Laboratoire des Multimatériaux et Interfaces, CNRS, LMI UMR 5615, Universite Claude Bernard Lyon 1, Universite de Lyon, F-69622 Villeurbanne, France; Faculte d'Odontologie, Universite Claude Bernard Lyon 1, Universite de Lyon, F-69008 Lyon, France
| | - Brigitte Grosgogeat
- Laboratoire des Multimatériaux et Interfaces, CNRS, LMI UMR 5615, Universite Claude Bernard Lyon 1, Universite de Lyon, F-69622 Villeurbanne, France; Faculte d'Odontologie, Universite Claude Bernard Lyon 1, Universite de Lyon, F-69008 Lyon, France
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Su X, Zhang Z, Qiu S, Zeng B, Yang M, Huang X, Zou X, Yang L. Association between nickel exposure and body compositions in the United States: a population-based cross-sectional study. BMC Public Health 2023; 23:1632. [PMID: 37626316 PMCID: PMC10463381 DOI: 10.1186/s12889-023-16483-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND Increasing body fat or decreasing muscle and bone mass were associated with worse health outcomes in the adult population. The effects of nickel exposure on body composition are not known. The aim of the current study was to investigate the relationship between urinary nickel levels and body compositions. MATERIALS AND METHODS Two thousand seven hundred sixty-two participants were included in the analysis from the National Health and Nutrition Examination Surveys of 2017-2018 after excluding participants who have missing data on urinary nickel and those with missing all body mass component data. We used weighted generalized linear models to explore the relationship between urinary nickel and body mass components under interpolating missing covariable values. Simultaneously, sensitivity analyses and subgroup analysis were conducted to verify stability of analysis result. Curve fitting and saturation effect analysis were used to explore the possible nonlinear relationship between urine nickel and body compositions. RESULTS Among the 2,762 participants, the average urinary nickel level was 1.58 ug/L. The weighted generalized linear models, the sensitivity analyses and subgroup analyses found no significant linear relationship between urinary nickel and body compositions. For body weight, BMI, TLM, ALM, TRF, TOF and BMC, the urine nickel saturation effect values were 0.76, 0.74, 0.5, 0.67, 0.64, 0.48, and 0.45 ug/L, respectively. For each 1 ug/L rise in urinary nickel levels at levels below the turning point, body weight increases (β = 9.06, 95% CI = 2.75, 15.36, p = 0.01), BMI increases (β = 3.20, 95% CI = 1.36, 5.05, p = < 0.001), TLM decreases (β = -47.39, 95% CI = -97.38, 2.59, p = 0.06), ALM decreases (β = -37.25, 95% CI = -63.25, -11.24, p = 0.01), TRF increases (β = 20.68, 95% CI = 1.50, 39.86, p = 0.03), TOF increases (β = 57.92, 95% CI = -0.12, 115.95, p = 0.05), and BMC decreases (β = -6.84, 95% CI = -12.64, -1.04, p = 0.02). CONCLUSIONS In summary, our study demonstrated that a dose-response relationship exists between urinary nickel and body compositions, with a low inflection point level of urinary nickel for the saturation effect.
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Affiliation(s)
- Xingyang Su
- Department of Urology and Institute of Urology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zilong Zhang
- Department of Urology and Institute of Urology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Shi Qiu
- Department of Urology and Institute of Urology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Bin Zeng
- Department of Urology and Institute of Urology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Mi Yang
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, China
| | - Xinyi Huang
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, China
| | - Xiaoli Zou
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, China.
| | - Lu Yang
- Department of Urology and Institute of Urology, West China Hospital, Sichuan University, Chengdu, 610041, China.
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3
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Stoeva I, Kanazirska P, Dogandzhiyska V, Karova E, Tomova Z, Chervenkov L. Patch test results in dental staff with dermatitis. Australas J Dermatol 2023; 64:346-353. [PMID: 37353940 DOI: 10.1111/ajd.14112] [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: 03/11/2023] [Revised: 05/31/2023] [Accepted: 06/11/2023] [Indexed: 06/25/2023]
Abstract
BACKGROUND Dental workers are exposed to allergenic materials in the workplace. OBJECTIVES To summarize patch test results in dental staff with work-related dermatitis. MATERIALS AND METHODS Cross-sectional study of dental staff with dermatitis was conducted. Symptoms, clinical findings and results from patch tests with 40 dental allergens were summarized. RESULTS Of 329 participants, 155 (47.1%) had at least one positive patch reaction. The highest frequency of positive reactions was observed for metals (38.6%), acrylics (7.3%) and additives in acrylic resins (3.6%). One hundred and eighty-five (56.2%) participants were currently symptomatic; in this group, 79 (42.7%) had current dermatitis. Thirty-eight patients had at least one positive patch test considered occupationally related to their current dermatitis. CONCLUSION Almost half of the dental staff with dermatitis had at least one positive patch test and approximately 12% had current occupational relevance of the allergens. Our results underscore the importance of patch testing in the evaluation of dental staff with dermatitis.
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Affiliation(s)
- Iliyana Stoeva
- Department of Diagnostic Imaging, Dental Allergology and Physiotherapy, Faculty of Dental Medicine, Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Petya Kanazirska
- Department of Diagnostic Imaging, Dental Allergology and Physiotherapy, Faculty of Dental Medicine, Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Violeta Dogandzhiyska
- Department of Conservative Dentistry, Faculty of Dental Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Emilia Karova
- Department of Conservative Dentistry, Faculty of Dental Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Zlatina Tomova
- Department of Prosthetic Dental Medicine, Faculty of Dental Medicine, Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Lyubomir Chervenkov
- Department of Diagnostic Imaging, Medical Faculty, Medical University of Plovdiv, Plovdiv, Bulgaria
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Chamani S, Mobasheri L, Rostami Z, Zare I, Naghizadeh A, Mostafavi E. Heavy metals in contact dermatitis: A review. J Trace Elem Med Biol 2023; 79:127240. [PMID: 37331278 DOI: 10.1016/j.jtemb.2023.127240] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 06/01/2023] [Accepted: 06/06/2023] [Indexed: 06/20/2023]
Abstract
Contact dermatitis is an inflammatory skin reaction caused by direct contact with chemical substances in the environment and can either be irritant or allergic in nature. The clinical symptoms of contact dermatitis, include local skin rash, itching, redness, swelling, and lesions. Nowadays, 15-20% of people have some degree of contact dermatitis, which can be more or less severe. Immune responses in allergic contact dermatitis (ACD) are due to the effects of cytokines and allergen-specific CD4+ and CD8+ T cells on the skin. Acids and alkalis such as drain cleaners, plants such as poinsettias, hair colors, and nail polish remover, are all prominent causes of irritant contact dermatitis (ICDs). Heavy metals are metallic elements with a high atomic weight that are hazardous in low quantities and are known to cause dermatitis after systemic or local exposure. Nickel (Ni), chromium (Cr), lead (Pb), and copper (Cu) are among the most common heavy metals used in various industries. Metal allergies may cause ACD and also systemic contact dermatitis (SCD). Contact dermatitis is detected by laboratory tests such as patch testing, lymphocyte stimulation test (LST), and evaluation of cytokine production by primary cultures of peripheral blood mononuclear cells. This article presents an update on the epidemiological and clinical characteristics of ACD and SCD caused by three heavy metals (Cr, Cu, and Pb). Ni is not discussed due to recent coverage. Furthermore, the effects of contact sensitivity to some other heavy metals, such as gold (Au), cobalt (Co), palladium (Pd), and mercury (Hg) are discussed.
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Affiliation(s)
- Sajad Chamani
- Medical Toxicology and Drug Abuse Research Center (MTDRC), Birjand University of Medical Sciences, Birjand, Iran
| | - Leila Mobasheri
- Department of Pharmacology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zeinab Rostami
- Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran
| | - Iman Zare
- Research and Development Department, Sina Medical Biochemistry Technologies Co. Ltd., Shiraz 7178795844, Iran
| | - Ali Naghizadeh
- Medical Toxicology and Drug Abuse Research Center (MTDRC), Birjand University of Medical Sciences, Birjand, Iran.
| | - Ebrahim Mostafavi
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA 94305, USA; Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA.
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5
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Midander K, Werner P, Isaksson M, Wisgrill L, Lidén C, Fyhrquist N, Julander A. Cobalt nanoparticles cause allergic contact dermatitis in humans. Br J Dermatol 2023; 188:278-287. [PMID: 36637098 DOI: 10.1093/bjd/ljac043] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 09/19/2022] [Accepted: 09/30/2022] [Indexed: 01/14/2023]
Abstract
BACKGROUND Cobalt (Co) causes allergic contact dermatitis (ACD) and the emerging use of Co nanoparticles (CoNPs) warrants gaining further insight into its potential to elicit ACD in sensitized individuals. OBJECTIVES The aims of the study were to clarify to what extent CoNPs may elicit ACD responses in participants with Co contact allergy, and to evaluate whether the nanoparticles cause a distinct immune response compared with cobalt chloride (CoCl2) in the skin reactions. METHODS Fourteen individuals with Co contact allergy were exposed to CoNPs, CoCl2, a Co-containing hard-metal disc (positive control), and an empty test chamber (negative control) by patch testing. Allergic responses were evaluated clinically by a dermatologist at Days 2, 4 and 7. At Day 2, patch-test chambers were removed, and remaining test-substance and skin-wipe samples were collected for inductive-coupled plasma mass spectrometry (ICP-MS) analysis. Additionally, skin biopsies were taken from patch-test reactions at Day 4 for quantitative real-time polymerase chain reaction analysis, histopathology and ICP-MS analysis of Co skin penetration. RESULTS Patch testing with CoNPs elicited allergic reactions in Co-sensitized individuals. At all timepoints, clinical assessment revealed significantly lower frequencies of positive patch-test reactions to CoNPs compared with CoCl2 or to the positive control. CoNPs elicited comparable immune responses to CoCl2. Chemical analysis of Co residues in patch-test filters, and on skin, shows lower doses for CoNPs compared with CoCl2. CONCLUSIONS CoNPs potently elicit immune responses in Co-sensitized individuals. Even though patch testing with CoNPs resulted in a lower skin dose than CoCl2, identical immunological profiles were present. Further research is needed to identify the potential harm of CoNPs to human health.
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Affiliation(s)
- Klara Midander
- IVL Swedish Environmental Research Institute, Stockholm, Sweden.,Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Paulina Werner
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Marléne Isaksson
- Lund University, Department of Occupational and Environmental Dermatology, Skane University Hospital Malmö, Malmö, Sweden
| | - Lukas Wisgrill
- Division of Neonatology, Pediatric Intensive Care and Neuropediatrics, Department of Pediatrics and Adolescent Medicine, Comprehensive Center for Pediatrics, Medical University of Vienna, 1090 Vienna, Austria
| | - Carola Lidén
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Nanna Fyhrquist
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Anneli Julander
- IVL Swedish Environmental Research Institute, Stockholm, Sweden.,Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
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6
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Symanzik C, John SM. Occupational exposure to cobalt nanoparticles: potential implications on risk assessment and preventive measures. Br J Dermatol 2023; 188:161-162. [PMID: 36653325 DOI: 10.1093/bjd/ljac053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 11/12/2022] [Indexed: 01/20/2023]
Affiliation(s)
- Cara Symanzik
- Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm) at Osnabrück University, Osnabrück, Germany.,Department of Dermatology, Environmental Medicine and Health Theory, Osnabrück University, Osnabrück, Germany
| | - Swen Malte John
- Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm) at Osnabrück University, Osnabrück, Germany.,Department of Dermatology, Environmental Medicine and Health Theory, Osnabrück University, Osnabrück, Germany
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7
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Grosgogeat B, Vaicelyte A, Gauthier R, Janssen C, Le Borgne M. Toxicological Risks of the Cobalt-Chromium Alloys in Dentistry: A Systematic Review. MATERIALS (BASEL, SWITZERLAND) 2022; 15:ma15175801. [PMID: 36079183 PMCID: PMC9457507 DOI: 10.3390/ma15175801] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 07/26/2022] [Accepted: 07/27/2022] [Indexed: 05/27/2023]
Abstract
Background: The toxicological risk of Co-Cr dental alloys is actually a sensitive subject with the European regulatory changes, namely regulation (EU) 2017/745 and annex VI to the CLP regulation (EC) 1972/2008. Objectives: The objective of this review is to conduct a rigorous analysis of the cytocompatibility of cobalt-chromium (Co-Cr) dental alloys. Considering various parameters such as cytotoxicity, type IV hypersensitivity reaction, sensitization, and irritation, we investigated evidence of toxicity of Co-Cr in human dental applications. Data sources: Specific search strategies were performed in three electronic databases, namely Medline, Embase, and Web of Science, using a main restriction in the search regarding the publication date (1995-2022). Study selection: Out of a total of 836 articles, only 21 studies were selected and analyzed according to PRISMA methodology. Results: Among them, 10 in vitro studies using human samples and 11 in vivo studies on human patients were distinguished. Most of the in vitro studies confirmed that Co-Cr alloys have a good cytocompatibility compared to Ni alloys. Regarding the in vivo studies, it appeared that Co-Cr could rarely cause sensitization, irritation, and allergic reactions. Reactions were mainly observed for people allergic to Co or Cr. Nevertheless, titanium-based materials showed better results. Conclusions: This study proposes a new state of the art on Co-Cr dental alloys and will thus be very useful for carrying out additional studies. Relevance: This review will help practitioners in their daily clinical choice.
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Affiliation(s)
- Brigitte Grosgogeat
- Laboratoire des Multimatériaux et des Interfaces, UMR CNRS 5615, Université Claude Bernard Lyon 1, Univ Lyon, 69008 Lyon, France
- Hospices Civils de Lyon, Service d′Odontologie, 69007 Lyon, France
- Faculté d′Odontologie, Université Claude Bernard Lyon 1, Univ Lyon, 69008 Lyon, France
| | - Alina Vaicelyte
- Laboratoire des Multimatériaux et des Interfaces, UMR CNRS 5615, Université Claude Bernard Lyon 1, Univ Lyon, 69008 Lyon, France
| | - Rémy Gauthier
- CNRS, INSA de Lyon, UCBL, MATEIS UMR CNRS 5510, Lyon, Bât. Saint Exupéry, 23 Av. Jean Capelle, 69621 Villeurbanne, France
| | - Christine Janssen
- Institut de Formation en Masso-Kinésithérapie pour Déficients de la Vue (IFMK DV), 69373 Lyon, France
| | - Marc Le Borgne
- Small Molecules for Biological Targets Team, Centre de Recherche en Cancérologie de Lyon, Centre Léon Bérard, CNRS 5286, INSERM 1052, Université Claude Bernard Lyon 1, Univ Lyon, 69373 Lyon, France
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8
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Fletcher R, Harrison W, Crighton A. Dental material allergies and oral soft tissue reactions. Br Dent J 2022; 232:620-625. [PMID: 35562454 DOI: 10.1038/s41415-022-4195-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 03/11/2022] [Indexed: 11/09/2022]
Abstract
Dental materials can cause reactions to the oral mucosa and present to the general dental practitioner. These are often referred to as 'allergies' but are frequently lichenoid reactions. Most of these are related to dental amalgam restorations and can be remedied by replacing the restoration with another suitable material. Other metals, including gold, palladium, nickel and chrome, have also been reported to trigger mucosal changes. Less commonly, issues arise from other restorative materials, including denture acrylics, composites and glass polyalkenoates. Reactions are also reported due to endodontic and sealing materials. It is unclear what role skin 'patch' testing has in managing dental material allergies. This article aims to give the practitioner a clearer picture of dental material allergy issues and how they should be approached in primary dental practice.
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Affiliation(s)
- Rosie Fletcher
- Department of Oral Medicine, Glasgow Dental Hospital and School, NHS Greater Glasgow and Clyde, Scotland, UK
| | - William Harrison
- Department of Oral Medicine, Glasgow Dental Hospital and School, NHS Greater Glasgow and Clyde, Scotland, UK
| | - Alexander Crighton
- Department of Oral Medicine, Glasgow Dental Hospital and School, NHS Greater Glasgow and Clyde, Scotland, UK.
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9
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Magnano GC, Marussi G, Adami G, Crosera M, Larese Filon F. Assessment of dermal absorption of beryllium and copper contained in temple tips of eyeglasses. Toxicol Lett 2022; 361:64-71. [PMID: 35427767 DOI: 10.1016/j.toxlet.2022.04.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 03/30/2022] [Accepted: 04/08/2022] [Indexed: 11/30/2022]
Abstract
Dermal exposure to hazardous substances such as chemicals, toxics, metallic items and other contaminants may present substantial danger for health. Beryllium (Be) is a hazardous metal, especially when inhaled and/or in direct contact with the skin, associated with chronic beryllium disease (CBD) and Be sensitization (BeS). The objective of this study was to investigate the percutaneous penetration of beryllium and copper contained in metallic items as eyeglass temple tips (specifically BrushCAST® Copper Beryllium Casting Alloys containing Be 0.35 < 2.85%; Cu 95.3-98.7%), using Franz diffusion cells. This work demonstrated that the total skin absorption of Cu was higher (8.86%) compared to Be (4.89%), which was expected based on the high percentage of Cu contained in the eyeglass temple tips. However, Be accumulated significantly in the epidermis and dermis (up to 0.461 µg/cm2) and, to a lesser extent, in the stratum corneum (up to 0.130 µg/cm2) with a flux of permeation of 3.52 ± 4.5 µg/cm2/hour and lag time of 2.3 ± 1.3 h, after cutaneous exposure of temple tip into 1.0 mL artificial sweat for 24 h. Our study highlights the importance of avoiding the use of Be alloys in items following long-term skin contact.
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Affiliation(s)
- Greta Camilla Magnano
- Clinical Unit of Occupational Medicine, University of Trieste, Italy; Department of Chemical and Pharmaceutical Sciences, University of Trieste, Italy.
| | - Giovanna Marussi
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Italy
| | - Gianpiero Adami
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Italy
| | - Matteo Crosera
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Italy
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10
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Symanzik C, Uter W, Becker SM, Skudlik C, John SM. Nickel and cobalt release from beauty tools: a field study in the German cosmetics trade. Contact Dermatitis 2022; 87:162-169. [PMID: 35288948 DOI: 10.1111/cod.14107] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/10/2022] [Accepted: 03/11/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Relevant nickel and cobalt release from hairdressing tools has recently been evidenced. Comparable data are not available for tools used in beauty salons. OBJECTIVES Screening of beauty tools for nickel and cobalt release. METHODS/MATERIALS Three hundred eight beauty tools were tested in seven beauty salons located in two North-German states. A nickel spot test and a cobalt spot test were used to test the tools for nickel release and cobalt release, respectively. RESULTS 143 of 308 beauty tools overall (46.4%; 95%CI: 40.8-52.2%) released nickel and 18 of 308 beauty tools overall (5.8%; 95%CI: 3.5-9.1%) released cobalt. Nickel release was found in 22 of 99 metal tools (22.2%; 95%CI: 14.5-31.7%) and 121 of 209 tools with metallic parts (57.9%; 95%CI: 50.9-64.7%); cobalt release was detected in 3 of 99 metal tools (3.0%; 95%CI: 0.63-8.6%) and 15 of 209 tools with metallic parts (7.2%; 95%CI: 4.1-11.6%). CONCLUSIONS Nickel and cobalt are emitted at allergologically relevant levels by a wide range of beauty tools (i.e., metal tools and tools with metallic parts) utilized in the German cosmetics trade. Beauty tools should thus be considered occupational sources of nickel and cobalt exposure. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Cara Symanzik
- Department of Dermatology, Environmental Medicine and Health Theory, Osnabrück University, Osnabrück, Germany.,Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm) at Osnabrück University, Osnabrück, Germany
| | - Wolfgang Uter
- Department of Medical Informatics, Biometry and Epidemiology (IMBE), Friedrich-Alexander Universität Erlangen/Nürnberg, Erlangen, Germany
| | - Selina-Marie Becker
- Department of Dermatology, Environmental Medicine and Health Theory, Osnabrück University, Osnabrück, Germany
| | - Christoph Skudlik
- Department of Dermatology, Environmental Medicine and Health Theory, Osnabrück University, Osnabrück, Germany.,Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm) at Osnabrück University, Osnabrück, Germany
| | - Swen M John
- Department of Dermatology, Environmental Medicine and Health Theory, Osnabrück University, Osnabrück, Germany.,Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm) at Osnabrück University, Osnabrück, Germany
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11
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Occupational Contact Dermatitis in Dental Personnel: A Retrospective Analysis of the North American Contact Dermatitis Group Data, 2001 to 2018. Dermatitis 2022; 33:80-90. [PMID: 35029351 DOI: 10.1097/der.0000000000000847] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Dental personnel are at risk of developing occupational contact dermatitis. OBJECTIVES The aims of the study were to determine prevalence of occupational contact dermatitis in dental personnel referred for patch testing and to characterize relevant allergens and sources. METHODS The study used a retrospective, cross-sectional analysis of the North American Contact Dermatitis Group (NACDG) data, 2001-2018. RESULTS Of 41,109 patients, 585 (1.4%) were dental personnel. Dental personnel were significantly more likely than nondental personnel to be female (75.7% vs 67.4%, P < 0.0001), have occupationally related dermatitis (35.7% vs 11.5%, P < 0.0001), and/or have primary hand involvement (48.6% vs 22.5%, P < 0.0001). More than one quarter of dental personnel (62/585, 27.7%) had 1 or more occupationally related allergic patch test reaction(s). There were 249 occupationally related reactions to NACDG screening allergens, most commonly glutaraldehyde (18.1%), thiuram mix (16.1%), and carba mix (14.1%). The most common sources of NACDG screening allergens were gloves (30.7%), dental materials (26.6%), and sterilizing solutions (13.1%). Seventy-three dental personnel (12.5%) had 1 or more positive patch test reactions to occupationally related allergen(s)/substances not on the screening series. Occupationally related irritant contact dermatitis was identified in 22.2% (n = 130) of dental personnel, most commonly to nonskin soaps/detergents/disinfectants (32.0%). CONCLUSIONS Occupational contact dermatitis is common in dental personnel referred for patch testing. Comprehensive testing beyond screening series is important in these patients.
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Zhao K, Ge L, Wong TI, Zhou X, Lisak G. Gold-silver nanoparticles modified electrochemical sensor array for simultaneous determination of chromium(III) and chromium(VI) in wastewater samples. CHEMOSPHERE 2021; 281:130880. [PMID: 34029966 DOI: 10.1016/j.chemosphere.2021.130880] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 05/02/2021] [Accepted: 05/07/2021] [Indexed: 06/12/2023]
Abstract
The oxidation state of ions is a crucial aspect that often has been overlooked when determining the toxicity of chromium (Cr) species in environmental samples. In this study, a novel electrochemical sensor array based on gold-silver nanoparticles modified electrodes was developed for simultaneous determination of the two main chromium species (Cr(III) and (VI)). Specifically, the working electrodes of screen-printed carbon electrodes (SPCEs) were modified with silver-gold bimetallic nanoparticles through electrochemical deposition for detection of Cr(VI). The silver-gold bimetallic nanoparticles were further oxidized to form stable silver-gold bimetallic oxide nanoparticles for the detection of Cr(III). The results showed that the addition of silver with a theoretical value of 1% of gold could contribute to the formation and stabilization of oxides on the surface of gold nanoparticles. After characterization, the two kinds of electrodes were integrated as an electrochemical sensor array for selective and sensitive detection of Cr(VI) and Cr(III). The linear range and limit of detection (LOD, identified by three times of signal-to-noise ratio) were found to be 0.05-5 ppm and 0.1 ppb for Cr(VI), and 0.05-1 ppm and 0.1 ppb for Cr(III), respectively. Finally, the electrochemical sensor array was proven for successful detection of Cr(VI) and Cr(III) in tap water, artificial saliva and artificial sweat samples, and monitoring of Cr(VI) and Cr(III) in chromium-containing wastewater treatment process. Combined with a handheld dual-channel electrochemical device, the simultaneous determination of Cr(VI), Cr(III) and total chromium contents can be easily achieved for various samples.
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Affiliation(s)
- Ke Zhao
- Residues and Resource Reclamation Centre (R3C), Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Clean Tech One, 637141, Singapore
| | - Liya Ge
- Residues and Resource Reclamation Centre (R3C), Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Clean Tech One, 637141, Singapore.
| | - Ten It Wong
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, #08-03, Innovis, 138634, Singapore
| | - Xiaodong Zhou
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, #08-03, Innovis, 138634, Singapore
| | - Grzegorz Lisak
- Residues and Resource Reclamation Centre (R3C), Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Clean Tech One, 637141, Singapore; School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.
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Abstract
Allergic contact dermatitis (ACD) remains a globally prevalent disease for both children and adults. The silent ACD epidemic continues to be fueled by the introduction of novel allergens in industrial and household products and the continued presence of known allergens. In 1997, Allan Dillarstone noted a sinusoidal pattern to epidemics when allergenic preservatives were replaced by alternative chemicals within the market, which then similarly increased in allergenicity. A call for public health vigilance and prevention initiatives is needed to intervene in the ACD epidemic.
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Affiliation(s)
- Mohsen Baghchechi
- University of California, Riverside, School of Medicine, 92521 UCR Botanic Gardens Road, Riverside, CA 92507, USA
| | - Alina Goldenberg
- Dermatologist Medical Group of North County, 11943 EL Camino Real #220, San Diego, CA 92130, USA
| | - Sharon E Jacob
- University of California, Riverside, School of Medicine, 92521 UCR Botanic Gardens Road, Riverside, CA 92507, USA; Veterans Health Administration, Loma Linda, 11210 Benton Street, Loma Linda, CA 92354, USA.
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15
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Cobalt–Chromium Dental Alloys: Metal Exposures, Toxicological Risks, CMR Classification, and EU Regulatory Framework. CRYSTALS 2020. [DOI: 10.3390/cryst10121151] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
During the 20th century, metal alloys have assumed an important role as restorative materials. Among existing examples, cobalt–chromium (Co–Cr) alloys increasingly began to be used in medicine and especially in dentistry. Their success is mainly due to their mechanical properties such as stiffness, strength and corrosion resistance, thus allowing a high biocompatibility. There are quite meaningful data on the corrosion and toxicity of Co–Cr alloys for their use in restorative materials such as dental prostheses. Toxicological studies following Co and Cr exposures in the oral cavity are more difficult to conduct because there are many different situations leading to the release of metal ions and wear particles. Furthermore, the links between exposure and the appearance of local or systemic toxicity are not automatic. Since 2017, the European Union (EU) regulatory framework for Co–Cr alloys has been undergoing profound changes. A new EU Medical Devices Regulation (MDR) (2017/745) will be applied in May 2021 with the need to consider that Co metal is a new carcinogenic, mutagenic and toxic to reproduction (CMR) substance. On 18 February 2020, the 14th Adaptation to Technical Progress (ATP14) to the Classification, Labelling and Packaging (CLP) regulation was published, including the harmonised classification for Co metal as a CMR 1B substance. In this context, the use of Co might be forbidden if the medical devices are invasive and as soon as they include more than 0.1% (m/m) Co. This review provides a specific overview on Co–Cr dental alloys in terms of metal ions and wear particles release, toxicological risks, and the actual and new EU regulatory framework.
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Symanzik C, Skudlik C, John SM. Experimental evaluation of nickel and cobalt release from tools and self-reported prevalence of nickel and cobalt allergy in the German hairdressing trade. J Eur Acad Dermatol Venereol 2020; 35:965-972. [PMID: 33274494 DOI: 10.1111/jdv.17058] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 11/20/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND Nickel release from some metal tools in the hairdressing trade has been sporadically evidenced, whereas data about cobalt release from metal tools in the hairdressing trade are lacking. OBJECTIVES To screen metal tools for nickel and cobalt release and to estimate the prevalence of nickel allergy and cobalt allergy in the German hairdressing trade. METHODS Four hundred seventy-five metal tools in the hairdressing trade were tested in three North German states with a nickel spot test for nickel release and with a cobalt spot test for cobalt release. Seventy hairdressers were surveyed with a standardized questionnaire to collect data about the tested metal tools as well as the prevalence of nickel allergy and cobalt allergy. RESULTS One hundred thirty-one of 475 metal tools (27.6%) - 60 of 60 hair clips (100%), five of five crochet hooks (100%), 24 of 40 tweezers (60.0%), 33 of 75 sectioning clips (44.0%), five of 32 straight razors (15.6%), and four of 45 tail combs (8.9%) - released nickel and 10 of 475 metal tools (2.1%) - three of 40 tweezers (7.5%), four of 60 hair clips (6.7%), one of 32 straight razors (3.1%), and two of 75 sectioning clips (2.7%) - released cobalt. Eight of 63 female hairdressers (12.7%) suffered from nickel allergy and two of 63 female hairdressers (3.2%) suffered from cobalt allergy. CONCLUSIONS Metal tools in the German hairdressing trade - with which a prolonged skin contact is intended - release nickel and cobalt in allergologically relevant amounts and thus should be taken into account as occupational sources of exposure to nickel and cobalt.
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Affiliation(s)
- C Symanzik
- Department of Dermatology, Environmental Medicine and Health Theory, University of Osnabrück, Osnabrück, Germany
| | - C Skudlik
- Department of Dermatology, Environmental Medicine and Health Theory, University of Osnabrück, Osnabrück, Germany.,Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm), University of Osnabrück, Osnabrück, Germany
| | - S M John
- Department of Dermatology, Environmental Medicine and Health Theory, University of Osnabrück, Osnabrück, Germany.,Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm), University of Osnabrück, Osnabrück, Germany
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Bergant M, Ščančar J, Milačič R. Kinetics of interaction of Cr(VI) and Cr(III) with serum constituents and detection of Cr species in human serum at physiological concentration levels. Talanta 2020; 218:121199. [DOI: 10.1016/j.talanta.2020.121199] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 05/16/2020] [Accepted: 05/19/2020] [Indexed: 01/05/2023]
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Drenovska K, Shahid M, Vassileva S. Nickel and Skin: From Allergy to Autoimmunity. Endocr Metab Immune Disord Drug Targets 2020; 20:1032-1040. [DOI: 10.2174/1871530320666191231115437] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 05/13/2019] [Accepted: 05/28/2019] [Indexed: 11/22/2022]
Abstract
Introduction & Objectives:
Cutaneous and systemic reactions to various metal implants and
medical devices have been well documented. The aim of this review was to focus on the probable
common mechanisms of allergy and autoimmunity that may lead to similar clinical outcomes following
the growing evidence in the literature of metal and nickel-related systemic, autoimmune or autoinflammatory
disorders.
Methods:
Detailed search of the available electronic databases (PubMed-Medline) was conducted for
review of the literature on that topic till the present moment.
Results:
Multiple reports on the immunological effects of metals including immunomodulation, allergy,
or autoimmunity were identified. It was found that metals may act through immunosuppression,
immunotoxicity, or as immune adjuvants thus provoking allergy and autoimmunity in susceptible individuals.
Both external or internal exposure to metals was observed. Nickel has been identified as the
most common sensitizer, and also the most studied one. The coexistence of both allergic and autoimmune
symptoms, induced by nickel, has been published, suggesting the autoimmune potential of nickel
compounds.
Conclusions:
Clinical experience and scientific literature together demonstrate that metals may play an
important role in the development of autoimmune diseases. While metal implant allergies and complications
are on the rise, they remain a diagnostic and therapeutic challenge. Elucidation of their possible
mechanisms will contribute to the more successful and safer treatment of affected individuals.
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Affiliation(s)
- Kossara Drenovska
- Department of Dermatology and Venereology, Sofia University of Medicine, Sofia, Bulgaria
| | - Martin Shahid
- Department of Dermatology and Venereology, Sofia University of Medicine, Sofia, Bulgaria
| | - Snejina Vassileva
- Department of Dermatology and Venereology, Sofia University of Medicine, Sofia, Bulgaria
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Tuna SH, Karaca E, Aslan İ, Pekkan G, Pekmez NÖ. Evaluation of corrosion resistance of Co-Cr alloys fabricated with different metal laser sintering systems. J Adv Prosthodont 2020; 12:114-123. [PMID: 32601530 PMCID: PMC7314628 DOI: 10.4047/jap.2020.12.3.114] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 03/14/2020] [Accepted: 04/29/2020] [Indexed: 11/08/2022] Open
Abstract
PURPOSE The aim of this study was to evaluate the corrosion resistance of the specimens produced by five different commercial metal laser sintering (MLS) systems with their recommended Co-Cr alloy powders. MATERIALS AND METHODS The MLS machines and the alloy powders used were, ProX 100-ST2724G (St-Pro), Mysint 100-EOS SP2 (SP2-Mys), EOSINT 270-EOS SP2 (SP2-EOS), SLM 100-Starbond CoS (SB-SLM), and MLab Cusing-Remanium® Star (RS-MLab), respectively. Eight specimens from each group were prepared. Open circuit potential (Eocp) and electrochemical impedance spectroscopy (EIS) measurements of polished surfaces of the specimens were conducted in a three-electrode cell using a potentiostat-galvanostat in Fusayama-Meyer artificial saliva (AS). Specimens from each group were immersed in AS and de-ionized water for seven days. Eocp, charge transfer resistance (Rct) values, and released ions (µg/cm2 × 7d) in different solutions were determined. The specimen surfaces were observed with SEM/EDS. Results were analyzed statistically. RESULTS Eocp values have shifted to potentials that are more positive over time. Steady-state Eocp values were from high to low as follows, SB-SLM, SP2-Mys, SP2-EOS, RS-MLab, and ST-Pro, respectively. After 60 mins, RS-MLab specimens had the highest Rct value, followed by SP2-Mys, SB-SLM, SP2-EOS, and ST-Pro. In all groups, ion release was higher in AS than that in de-ionized water. CONCLUSION There were small differences among the corrosion resistances of the Co-Cr alloy specimens produced with MLS systems; meanwhile, the corrosion resistances were quite high for all specimens.
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Affiliation(s)
- Süleyman Hakan Tuna
- Department of Prosthodontics, Faculty of Dentistry, Süleyman Demirel University, Isparta, Turkey
| | - Erhan Karaca
- Department of Chemistry, Faculty of Science, Hacettepe University, Ankara, Turkey
| | - İsmail Aslan
- Department of Prosthodontics, Faculty of Dentistry, Burdur Mehmet Akif Ersoy University, Burdur, Turkey
| | - Gürel Pekkan
- Department of Prosthodontics, Faculty of Dentistry, Tekirdağ Namık Kemal University, Tekirdağ, Turkey
| | - Nuran Özçiçek Pekmez
- Department of Chemistry, Faculty of Science, Hacettepe University, Ankara, Turkey
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20
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Self-Assembled Monolayer Formation on a Dental Orthodontic Stainless Steel Wire Surface to Suppress Metal Ion Elution. COATINGS 2020. [DOI: 10.3390/coatings10040367] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Metal ion elution, including Cr and Ni from dental orthodontic stainless steel, accounts for some allergies. In this study, a self-assembled monolayer (SAM) on a wire surface is proposed for suppressing such elution. This method involves modifying the stainless steel surface using phosphonic acid containing a long alkyl chain. The uncoated and coated wires are immersed in different acidic solutions, and the supernatant is analyzed by inductively coupled plasma mass spectrometry after 1–4 weeks. The results reveal that Cr and Ni ion elution is significantly suppressed by SAM modification. These findings will help in minimizing potential allergens from dental orthodontics.
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Occupationally Related Nickel Reactions: A Retrospective Analysis of the North American Contact Dermatitis Group Data 1998-2016. Dermatitis 2020; 30:306-313. [PMID: 31524759 DOI: 10.1097/der.0000000000000516] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
BACKGROUND The epidemiology of nickel allergy in occupational settings is not well understood. OBJECTIVE The aim of the study was to characterize occupationally related nickel allergy (ORNA). METHODS This is a retrospective cross-sectional analysis of 44,378 patients patch tested by the North American Contact Dermatitis Group from 1998 to 2016. Characteristics of individuals with ORNA were compared with those with non-ORNA (NORNA). RESULTS A total of 7928 (18.2%) individuals were positive to nickel sulfate 2.5%. Two hundred sixty-eight (3.4%) had ORNA. As compared with NORNA, ORNA was statistically associated with the male sex (41.0% vs 12.9%, P < 0.001), a diagnosis of irritant contact dermatitis (22.4% vs 12.0%, P < 0.001), and no history of eczema (81.7% vs 75.7%, P = 0.0217). The most common sites of ORNA dermatitis were hand (39.9%) and arm (18.1%), which were significantly more common than in NORNA (P < 0.0001). Sixteen industry categories and 22 occupation categories were identified for ORNA; the most common industries were durable goods manufacturing (24.6%) and personal services (15.7%), and the most frequent occupations were hairdressers/cosmetologists/barbers (14.3%), machine operators (9.3%), and health care workers (7.1%). Overall 30% of ORNA occupations were in metalworking. Of 215 ORNA sources identified, instruments/phones/other equipment (16.3%), vehicles/machinery (15.8%), and tools (15.3%) were the most common. CONCLUSIONS Occupational nickel allergy is distinct from nonoccupational nickel allergy.
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Thyssen JP, Ahlström MG, Bruze M, Rustemeyer T, Lidén C. Metals. Contact Dermatitis 2020. [DOI: 10.1007/978-3-319-72451-5_35-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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23
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24
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Wang X, Herting G, Wei Z, Odnevall Wallinder I, Hedberg Y. Bioaccessibility of nickel and cobalt in powders and massive forms of stainless steel, nickel- or cobalt-based alloys, and nickel and cobalt metals in artificial sweat. Regul Toxicol Pharmacol 2019; 106:15-26. [DOI: 10.1016/j.yrtph.2019.04.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 04/19/2019] [Accepted: 04/21/2019] [Indexed: 01/29/2023]
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Ahlström MG, Thyssen JP, Wennervaldt M, Menné T, Johansen JD. Nickel allergy and allergic contact dermatitis: A clinical review of immunology, epidemiology, exposure, and treatment. Contact Dermatitis 2019; 81:227-241. [DOI: 10.1111/cod.13327] [Citation(s) in RCA: 115] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/23/2019] [Accepted: 05/24/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Malin G. Ahlström
- National Allergy Research Centre, Department of Dermatology and Allergy, Herlev and Gentofte HospitalUniversity of Copenhagen Hellerup Denmark
| | - Jacob P. Thyssen
- National Allergy Research Centre, Department of Dermatology and Allergy, Herlev and Gentofte HospitalUniversity of Copenhagen Hellerup Denmark
- Department of Dermatology and Allergy, Herlev and Gentofte HospitalUniversity of Copenhagen Hellerup Denmark
| | - Michael Wennervaldt
- National Allergy Research Centre, Department of Dermatology and Allergy, Herlev and Gentofte HospitalUniversity of Copenhagen Hellerup Denmark
| | - Torkil Menné
- National Allergy Research Centre, Department of Dermatology and Allergy, Herlev and Gentofte HospitalUniversity of Copenhagen Hellerup Denmark
| | - Jeanne D. Johansen
- National Allergy Research Centre, Department of Dermatology and Allergy, Herlev and Gentofte HospitalUniversity of Copenhagen Hellerup Denmark
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Alinaghi F, Zachariae C, Thyssen JP, Johansen JD. Causative exposures and temporal development of cobalt allergy in Denmark between 2002 and 2017. Contact Dermatitis 2019; 81:242-248. [DOI: 10.1111/cod.13326] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/23/2019] [Accepted: 05/23/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Farzad Alinaghi
- National Allergy Research Centre, Department of Dermatology and AllergyCopenhagen University Hospital Herlev‐Gentofte Hellerup Denmark
| | - Claus Zachariae
- National Allergy Research Centre, Department of Dermatology and AllergyCopenhagen University Hospital Herlev‐Gentofte Hellerup Denmark
| | - Jacob P. Thyssen
- National Allergy Research Centre, Department of Dermatology and AllergyCopenhagen University Hospital Herlev‐Gentofte Hellerup Denmark
| | - Jeanne D. Johansen
- National Allergy Research Centre, Department of Dermatology and AllergyCopenhagen University Hospital Herlev‐Gentofte Hellerup Denmark
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Stingeni L, Bianchi L, Hansel K, Corazza M, Gallo R, Guarneri F, Patruno C, Rigano L, Romita P, Pigatto PD, Calzavara-Pinton P. Italian Guidelines in Patch Testing - adapted from the European Society of Contact Dermatitis (ESCD). GIORN ITAL DERMAT V 2019; 154:227-253. [DOI: 10.23736/s0392-0488.19.06301-6] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Simonsen AB, Friis UF, Johansen JD, Zachariae C, Sloth JJ, Thyssen JP. Occupational allergic contact dermatitis caused by cobalt in machine oil. Contact Dermatitis 2018; 80:59-61. [DOI: 10.1111/cod.13121] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 08/14/2018] [Indexed: 11/29/2022]
Affiliation(s)
- Anne B. Simonsen
- Department of Dermatology and Allergy; Herlev-Gentofte Hospital, University of Copenhagen; Hellerup Denmark
| | - Ulrik F. Friis
- Department of Dermatology and Allergy, National Allergy Research Centre; Herlev-Gentofte Hospital, University of Copenhagen; Hellerup Denmark
| | - Jeanne D. Johansen
- Department of Dermatology and Allergy, National Allergy Research Centre; Herlev-Gentofte Hospital, University of Copenhagen; Hellerup Denmark
| | - Claus Zachariae
- Department of Dermatology and Allergy; Herlev-Gentofte Hospital, University of Copenhagen; Hellerup Denmark
| | - Jens J. Sloth
- National Food Institute, Technical University of Denmark; Kgs. Lyngby Denmark
| | - Jacob P. Thyssen
- Department of Dermatology and Allergy; Herlev-Gentofte Hospital, University of Copenhagen; Hellerup Denmark
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Kettelarij J, Midander K, Lidén C, Bottai M, Julander A. Neglected exposure route: cobalt on skin and its associations with urinary cobalt levels. Occup Environ Med 2018; 75:837-842. [PMID: 30173144 PMCID: PMC6227794 DOI: 10.1136/oemed-2018-105099] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 06/07/2018] [Accepted: 08/04/2018] [Indexed: 11/04/2022]
Abstract
OBJECTIVES Cobalt (Co) exposure is associated with adverse health effects including skin sensitisation, asthma and interstitial lung fibrosis. Exposure to Co in industrial settings is often assessed using air samples or biomonitoring in urine. Skin exposure is rarely measured. Aim of this study was to quantify and compare the importance of Co skin exposure and respiratory exposure in determining urinary Co concentrations. METHODS Co skin exposure was measured in 76 hard metal workers by acid wipe sampling before and at the end of work shifts. Spot urine was collected during a 24-hour period from the start of a shift. Respiratory exposure was measured by personal inhalable dust sampling during a shift in 30 workers. Co was analysed by inductively coupled plasma mass spectrometry. RESULTS Quantile regression modelling showed that a doubling of Co on skin before or at the end of shift increased the median urinary concentration of Co by 70% (p<0.001) or 32% (p<0.001), respectively. A doubling of Co in air increased median urinary Co by 38% (p<0.001). Co skin exposures were still significantly associated with urinary Co after excluding a group of workers with high respiratory exposure (33%, p=0.021 and 17%, p=0.002). CONCLUSIONS The results indicate an association between Co skin exposure and urinary Co concentrations. This should be considered when using urinary Co as a biomarker of exposure.
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Affiliation(s)
- Jolinde Kettelarij
- Unit of Work Environment Toxicology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Klara Midander
- Unit of Work Environment Toxicology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Carola Lidén
- Unit of Work Environment Toxicology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Matteo Bottai
- Unit of Biostatistics, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Anneli Julander
- Unit of Work Environment Toxicology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
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Lejding T, Mowitz M, Isaksson M, Bruze M, Pontén A, Svedman C, Zimerson E, Engfeldt M. A retrospective investigation of hexavalent chromium allergy in southern Sweden. Contact Dermatitis 2018; 78:386-392. [PMID: 29572843 DOI: 10.1111/cod.12969] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 12/18/2017] [Accepted: 12/24/2017] [Indexed: 12/30/2022]
Abstract
BACKGROUND Historically, allergic contact dermatitis caused by hexavalent chromium [Cr(VI)] in cement was the most common cause of invalidity attributable to skin disease in Sweden. Since the legislation to reduce Cr(VI) in cement was introduced in 1989, we rarely see allergic contact dermatitis caused by cement. OBJECTIVES To examine the frequency of contact allergy to Cr(VI) in southern Sweden in 2005-2014. METHODS We investigated the occurrence of positive reactions to potassium dichromate 0.5% pet. in consecutively tested dermatitis patients, and compared the occurrence of atopic dermatitis, localization of dermatitis and simultaneous positive reactions to cobalt chloride and nickel sulfate in the Cr(VI)-positive patients with those in a group of patients with a similar age and sex distribution. RESULTS In total, 6482 patients were tested, and 233 Cr(VI)-allergic individuals were found (3.6%). A significantly higher proportion of atopic dermatitis was found among Cr(VI)-allergic patients, and a significantly higher share of foot dermatitis was found among Cr(VI)-allergic women, than among controls. Cr(VI) allergy was less likely when both nickel allergy and cobalt allergy were present. CONCLUSION A relatively high frequency of contact allergy to Cr(VI) was found. The cause has shifted from cement exposure to other exposures, probably mainly leather.
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Affiliation(s)
- Tina Lejding
- Department of Occupational and Environmental Dermatology, Lund University, Skåne University Hospital, 214 28 Malmö, Sweden
| | - Martin Mowitz
- Department of Occupational and Environmental Dermatology, Lund University, Skåne University Hospital, 214 28 Malmö, Sweden
| | - Marléne Isaksson
- Department of Occupational and Environmental Dermatology, Lund University, Skåne University Hospital, 214 28 Malmö, Sweden
| | - Magnus Bruze
- Department of Occupational and Environmental Dermatology, Lund University, Skåne University Hospital, 214 28 Malmö, Sweden
| | - Ann Pontén
- Department of Occupational and Environmental Dermatology, Lund University, Skåne University Hospital, 214 28 Malmö, Sweden
| | - Cecilia Svedman
- Department of Occupational and Environmental Dermatology, Lund University, Skåne University Hospital, 214 28 Malmö, Sweden
| | - Erik Zimerson
- Department of Occupational and Environmental Dermatology, Lund University, Skåne University Hospital, 214 28 Malmö, Sweden
| | - Malin Engfeldt
- Department of Occupational and Environmental Dermatology, Lund University, Skåne University Hospital, 214 28 Malmö, Sweden
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Heratizadeh A, Werfel T, Schubert S, Geier J. Contact sensitization in dental technicians with occupational contact dermatitis. Data of the Information Network of Departments of Dermatology (IVDK) 2001-2015. Contact Dermatitis 2018; 78:266-273. [DOI: 10.1111/cod.12943] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Revised: 11/01/2017] [Accepted: 11/03/2017] [Indexed: 11/26/2022]
Affiliation(s)
- Annice Heratizadeh
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy; Hannover Medical School; 30625 Hannover Germany
| | - Thomas Werfel
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy; Hannover Medical School; 30625 Hannover Germany
| | - Steffen Schubert
- Information Network of Departments of Dermatology; University Medical Centre Göttingen; 37075 Göttingen Germany
| | - Johannes Geier
- Information Network of Departments of Dermatology; University Medical Centre Göttingen; 37075 Göttingen Germany
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Ahlström MG, Thyssen JP, Menné T, Johansen JD. Prevalence of nickel allergy in Europe following the EU Nickel Directive - a review. Contact Dermatitis 2017; 77:193-200. [DOI: 10.1111/cod.12846] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 05/17/2017] [Accepted: 05/18/2017] [Indexed: 01/08/2023]
Affiliation(s)
- Malin G. Ahlström
- Department of Dermatology and Allergy, National Allergy Research Centre; Herlev and Gentofte Hospital, University of Copenhagen; 2900 Hellerup Denmark
| | - Jacob P. Thyssen
- Department of Dermatology and Allergy, National Allergy Research Centre; Herlev and Gentofte Hospital, University of Copenhagen; 2900 Hellerup Denmark
| | - Torkil Menné
- Department of Dermatology and Allergy, National Allergy Research Centre; Herlev and Gentofte Hospital, University of Copenhagen; 2900 Hellerup Denmark
| | - Jeanne D. Johansen
- Department of Dermatology and Allergy, National Allergy Research Centre; Herlev and Gentofte Hospital, University of Copenhagen; 2900 Hellerup Denmark
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Anderson S, Long C, Dotson GS. Occupational Allergy. EUROPEAN MEDICAL JOURNAL 2017. [DOI: 10.33590/emj/10311285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
An estimated 11 million workers in the USA are potentially exposed to agents that can become a cause of allergic diseases such as occupational asthma and allergic contact dermatitis, which can adversely affect health and well-being. Hundreds of chemicals (e.g. metals, epoxy and acrylic resins, rubber additives, and chemical intermediates) and proteins (e.g. natural rubber latex, plant proteins, mould, animal dander) present in virtually every industry have been identified as causes of allergic disease. In general, allergens can be classified as low molecular weight (chemical) allergens and high molecular weight (protein) allergens. These agents are capable of inducing immunological responses that are both immunoglobulin E and non-immunoglobulin E-mediated. Interestingly, the same chemical can induce diverse immune responses in different individuals. As new hazards continue to emerge, it is critical to understand the immunological mechanisms of occupational allergic disease. Specific understanding of these mechanisms has direct implications in hazard identification, hazard communication, and risk assessment. Such efforts will ultimately assist in the development of risk management strategies capable of controlling workplace exposures to allergens to prevent the induction of sensitisation in naïve individuals and inhibit elicitation of allergic responses. The purpose of this short review is to give a brief synopsis of the incidence, agents, mechanisms, and research needs related to occupational allergy.
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Affiliation(s)
- Stacey Anderson
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, West Virginia, USA
| | - Carrie Long
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, West Virginia, USA
| | - G. Scott Dotson
- Education and Information Division, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Cincinnati, Ohio, USA
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Moins L, Persoons R, Barbeau D, Balducci F, Maitre A, Bonneterre V. Évaluation de l’état de santé, des risques professionnels toxiques et de l’exposition aux métaux d’une population de prothésistes dentaires. ARCH MAL PROF ENVIRO 2016. [DOI: 10.1016/j.admp.2016.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Midander K, Julander A, Kettelarij J, Lidén C. Testing in artificial sweat – Is less more? Comparison of metal release in two different artificial sweat solutions. Regul Toxicol Pharmacol 2016; 81:381-386. [DOI: 10.1016/j.yrtph.2016.09.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 08/26/2016] [Accepted: 09/20/2016] [Indexed: 12/17/2022]
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Kettelarij J, Nilsson S, Midander K, Lidén C, Julander A. Snapshot of cobalt, chromium and nickel exposure in dental technicians. Contact Dermatitis 2016; 75:370-376. [PMID: 27633504 DOI: 10.1111/cod.12681] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 07/01/2016] [Accepted: 08/01/2016] [Indexed: 11/28/2022]
Abstract
BACKGROUND It is not fully understood where and how people are exposed to sensitizing metals. Much can be learnt from studying occupational settings where metals are handled. OBJECTIVES To quantify cobalt (Co), chromium (Cr) and nickel (Ni) exposure on the skin and in the air, and urine levels, in dental technicians working with tools and alloys that may result in skin and respiratory exposure. METHODS The metal skin dose was quantified with acid wipe sampling in dental technicians (n = 13). Air exposure was monitored by personal air sampling. Spot urine samples were collected for 24 h. Metals were analysed with inductively coupled plasma mass spectrometry. RESULTS Before work, Co was detected on the skin of 10 participants (0.00025-0.0039 µg/cm2 ), and Cr (0.00051-0.011 µg/cm2 ) and Ni (0.0062-0.15 µg/cm2 ) on the skin of all participants. After a 2-h period without hand washing, CoCr-exposed participants had more Co on the skin (p = 0.004) than non-CoCr-exposed participants. Co was found in 10 air samples (0.22-155 µg/m3 ), Cr in nine (0.43-71 µg/m3 ), and Ni in four (0.48-3.7 µg/m3 ). Metal urine concentrations were considered to be normal. CONCLUSIONS Dental technicians were exposed to Co, Cr and Ni on the skin and through the air, which was not reflected in the urine concentrations in this study. Cobalt skin doses may potentially elicit allergic contact dermatitis and cause sensitization.
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Affiliation(s)
- Jolinde Kettelarij
- Institute of Environmental Medicine, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Sara Nilsson
- Institute of Environmental Medicine, Karolinska Institutet, 171 77, Stockholm, Sweden.,Centre for Occupational and Environmental Medicine, Stockholm County Council, 113 65, Stockholm, Sweden
| | - Klara Midander
- Institute of Environmental Medicine, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Carola Lidén
- Institute of Environmental Medicine, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Anneli Julander
- Institute of Environmental Medicine, Karolinska Institutet, 171 77, Stockholm, Sweden
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Al-Imam H, Benetti AR, Özhayat EB, Pedersen AML, Johansen JD, Thyssen JP, Jellesen MS, Gotfredsen K. Cobalt release and complications resulting from the use of dental prostheses. Contact Dermatitis 2016; 75:377-383. [PMID: 27385620 DOI: 10.1111/cod.12649] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 05/30/2016] [Accepted: 06/01/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND Cobalt release from dental prostheses has been shown to elicit allergic reactions in cobalt-allergic patients. It is therefore important to investigate whether these prostheses are possible sources of sensitization. OBJECTIVES To assess (i) cobalt release from dental prostheses and (ii) allergic reactions to components of dental prostheses, and (iii) to investigate the oral mucosa for inflammation 1-5 years after insertion of the prostheses. METHOD Clinical oral examination was conducted in 66 patients with 84 dental prostheses. Cobalt release from 84 functional (used) and 32 non-functional (new) prostheses was investigated with the cobalt spot test. Contact allergy was assessed by patch testing. Smear tests for Candida spp. were performed in patients showing signs of inflammation of the oral mucosa. The prostheses were assessed for biological and technical complications. RESULTS None of the functional prostheses released cobalt, whereas this was observed in 24 of 32 non-functional prostheses. None of the patients had contact allergy to cobalt. Of the 66 patients, 11 showed signs of inflammation of the oral mucosa, 2 had oral candidiasis, 16 had ill-fitting prostheses, and all had insufficient oral hygiene. CONCLUSIONS Dental prostheses released cobalt during the fabrication stages, but not 1-5 years after insertion. No allergic reactions were observed. Signs of inflammation were related to candidiasis, insufficient oral hygiene, and ill-fitting prostheses.
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Affiliation(s)
- Hiba Al-Imam
- Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, 2200, Denmark
| | - Ana R Benetti
- Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, 2200, Denmark
| | - Esben B Özhayat
- Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, 2200, Denmark
| | - Anne M L Pedersen
- Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, 2200, Denmark
| | - Jeanne D Johansen
- Department of Dermato-Allergology, National Allergy Research Centre, Copenhagen University Hospital, Herlev-Gentofte, 2900, Denmark
| | - Jacob P Thyssen
- Department of Dermato-Allergology, National Allergy Research Centre, Copenhagen University Hospital, Herlev-Gentofte, 2900, Denmark
| | - Morten S Jellesen
- Department of Mechanical Engineering, Technical University of Denmark, Kgs. Lyngby, 2800, Denmark
| | - Klaus Gotfredsen
- Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, 2200, Denmark
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Leather Contains Cobalt and Poses a Risk of Allergic Contact Dermatitis: Cobalt Indicator Solution and X-ray Florescence Spectrometry as Screening Tests. Dermatitis 2016; 27:202-7. [DOI: 10.1097/der.0000000000000200] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Schwensen JF, Bregnbak D, Johansen JD. Recent trends in epidemiology, sensitization and legal requirements of selected relevant contact allergens. Expert Rev Clin Immunol 2015; 12:289-300. [DOI: 10.1586/1744666x.2016.1120159] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jakob F. Schwensen
- National Allergy Research Centre, Department of Dermato-Allergology, Gentofte University Hospital, Hellerup, Denmark
| | - David Bregnbak
- National Allergy Research Centre, Department of Dermato-Allergology, Gentofte University Hospital, Hellerup, Denmark
| | - Jeanne Duus Johansen
- National Allergy Research Centre, Department of Dermato-Allergology, Gentofte University Hospital, Hellerup, Denmark
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Johansen JD, Aalto-Korte K, Agner T, Andersen KE, Bircher A, Bruze M, Cannavó A, Giménez-Arnau A, Gonçalo M, Goossens A, John SM, Lidén C, Lindberg M, Mahler V, Matura M, Rustemeyer T, Serup J, Spiewak R, Thyssen JP, Vigan M, White IR, Wilkinson M, Uter W. European Society of Contact Dermatitis guideline for diagnostic patch testing - recommendations on best practice. Contact Dermatitis 2015; 73:195-221. [PMID: 26179009 DOI: 10.1111/cod.12432] [Citation(s) in RCA: 935] [Impact Index Per Article: 103.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 04/29/2015] [Accepted: 05/06/2015] [Indexed: 11/27/2022]
Abstract
The present guideline summarizes all aspects of patch testing for the diagnosis of contact allergy in patients suspected of suffering, or having been suffering, from allergic contact dermatitis or other delayed-type hypersensitivity skin and mucosal conditions. Sections with brief descriptions and discussions of different pertinent topics are followed by a highlighted short practical recommendation. Topics comprise, after an introduction with important definitions, materials, technique, modifications of epicutaneous testing, individual factors influencing the patch test outcome or necessitating special considerations, children, patients with occupational contact dermatitis and drug eruptions as special groups, patch testing of materials brought in by the patient, adverse effects of patch testing, and the final evaluation and patient counselling based on this judgement. Finally, short reference is made to aspects of (continuing) medical education and to electronic collection of data for epidemiological surveillance.
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Affiliation(s)
- Jeanne D Johansen
- Department of Dermato-Allergology, National Allergy Research Centre, Gentofte Hospital, University of Copenhagen, 2900 Hellerup, Denmark
| | - Kristiina Aalto-Korte
- Occupational Medicine, Finnish Institute of Occupational Health, 00250 Helsinki, Finland
| | - Tove Agner
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, 2400 Copenhagen, Denmark
| | - Klaus E Andersen
- Department of Dermatology and Allergy Centre, Odense University Hospital, University of Southern Denmark, 5000 Odense, Denmark
| | - Andreas Bircher
- Allergy Unit, Department of Dermatology, University Hospital and University of Basel, 4031 Basel, Switzerland
| | - Magnus Bruze
- Department of Occupational and Environmental Dermatology, Skåne University Hospital, Lund University, SE-20502 Malmö, Sweden
| | - Alicia Cannavó
- Hospital Municipal de Vicente López 'Profesor Bernard Houssay', Buenos Aires, Argentina
| | - Ana Giménez-Arnau
- Department of Dermatology, Hospital del Mar, Universitat Autónoma de Barcelona, 08003 Barcelona, Spain
| | - Margarida Gonçalo
- Department of Dermatology, University Hospital and Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal
| | - An Goossens
- Contact Allergy Unit, Department of Dermatology, University Hospital K. U. Leuven, B-3000 Leuven, Belgium
| | - Swen M John
- Department of Dermatology, Environmental Medicine, Health Theory, University of Osnabrueck, D-49069 Osnabrueck, Germany
| | - Carola Lidén
- Institute of Environmental Medicine, Karolinska Institutet, SE-17177 Stockholm, Sweden
| | - Magnus Lindberg
- Department of Dermatology, University Hospital Örebro, SE-70185 Örebro, Sweden
| | - Vera Mahler
- Allergy Unit, Department of Dermatology, University Hospital Erlangen, 91054 Erlangen, Germany
| | - Mihály Matura
- Unit of Occupational and Environmental Dermatology, Centre for Occupational and Environmental Medicine, SLSO, SE-11365 Stockholm, Sweden
| | - Thomas Rustemeyer
- Department of Dermatology, VU University Medical Centre, 1081 HV Amsterdam, The Netherlands
| | - Jørgen Serup
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, 2400 Copenhagen, Denmark
| | - Radoslaw Spiewak
- Department of Experimental Dermatology and Cosmetology, Jagiellonian University Medical College, 30-688 Krakow, Poland
| | - Jacob P Thyssen
- Department of Dermato-Allergology, National Allergy Research Centre, Gentofte Hospital, University of Copenhagen, 2900 Hellerup, Denmark
| | - Martine Vigan
- Department of Dermatology, CHRU Besançon, 25030 Besançon Cedex, France
| | - Ian R White
- Department of Cutaneous Allergy, St John's Institute of Dermatology, St Thomas' Hospital, London, SE1 7EH, UK
| | | | - Wolfgang Uter
- Department of Medical Informatics, Biometry and Epidemiology, University of Erlangen/Nürnberg, 91054 Erlangen, Germany
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Bregnbak D, Johansen JD, Jellesen MS, Zachariae C, Menné T, Thyssen JP. Chromium allergy and dermatitis: prevalence and main findings. Contact Dermatitis 2015; 73:261-80. [DOI: 10.1111/cod.12436] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 05/12/2015] [Accepted: 05/12/2015] [Indexed: 12/14/2022]
Affiliation(s)
- David Bregnbak
- Department of Dermato-Allergology; National Allergy Research Centre, Copenhagen University Hospital Gentofte; Hellerup 2900 Denmark
| | - Jeanne D. Johansen
- Department of Dermato-Allergology; National Allergy Research Centre, Copenhagen University Hospital Gentofte; Hellerup 2900 Denmark
| | - Morten S. Jellesen
- Materials and Surface Engineering, Department of Mechanical Engineering; Technical University of Denmark; DK-2800 Lyngby Denmark
| | - Claus Zachariae
- Department of Dermato-Allergology; Gentofte University Hospital; Hellerup 2900 Denmark
| | - Torkil Menné
- Department of Dermato-Allergology; National Allergy Research Centre, Copenhagen University Hospital Gentofte; Hellerup 2900 Denmark
| | - Jacob P. Thyssen
- Department of Dermato-Allergology; National Allergy Research Centre, Copenhagen University Hospital Gentofte; Hellerup 2900 Denmark
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Anderson SE, Meade BJ. Potential health effects associated with dermal exposure to occupational chemicals. ENVIRONMENTAL HEALTH INSIGHTS 2014; 8:51-62. [PMID: 25574139 PMCID: PMC4270264 DOI: 10.4137/ehi.s15258] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 11/03/2014] [Accepted: 11/04/2014] [Indexed: 05/14/2023]
Abstract
There are a large number of workers in the United States, spanning a variety of occupational industries and sectors, who are potentially exposed to chemicals that can be absorbed through the skin. Occupational skin exposures can result in numerous diseases that can adversely affect an individual's health and capacity to perform at work. In general, there are three types of chemical-skin interactions of concern: direct skin effects, immune-mediated skin effects, and systemic effects. While hundreds of chemicals (metals, epoxy and acrylic resins, rubber additives, and chemical intermediates) present in virtually every industry have been identified to cause direct and immune-mediated effects such as contact dermatitis or urticaria, less is known about the number and types of chemicals contributing to systemic effects. In an attempt to raise awareness, skin notation assignments communicate the potential for dermal absorption; however, there is a need for standardization among agencies to communicate an accurate description of occupational hazards. Studies have suggested that exposure to complex mixtures, excessive hand washing, use of hand sanitizers, high frequency of wet work, and environmental or other factors may enhance penetration and stimulate other biological responses altering the outcomes of dermal chemical exposure. Understanding the hazards of dermal exposure is essential for the proper implementation of protective measures to ensure worker safety and health.
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Affiliation(s)
- Stacey E Anderson
- National Institute for Occupational Safety and Health, Morgantown, WV, USA
| | - B Jean Meade
- National Institute for Occupational Safety and Health, Morgantown, WV, USA
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43
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Bregnbak D, Thyssen JP, Zachariae C, Menné T, Johansen JD. Association between cobalt allergy and dermatitis caused by leather articles - a questionnaire study. Contact Dermatitis 2014; 72:106-14. [DOI: 10.1111/cod.12319] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 09/25/2014] [Accepted: 10/14/2014] [Indexed: 11/29/2022]
Affiliation(s)
- David Bregnbak
- Department of Dermato-Allergology; National Allergy Research Centre, Copenhagen University Hospital Gentofte; Hellerup 2900, Niels Andersens Vej 65 Denmark
| | - Jacob P. Thyssen
- Department of Dermato-Allergology; National Allergy Research Centre, Copenhagen University Hospital Gentofte; Hellerup 2900, Niels Andersens Vej 65 Denmark
| | - Claus Zachariae
- Department of Dermato-Allergology; Copenhagen University Hospital Gentofte; Hellerup 2900, Niels Andersens Vej 65 Denmark
| | - Torkil Menné
- Department of Dermato-Allergology; National Allergy Research Centre, Copenhagen University Hospital Gentofte; Hellerup 2900, Niels Andersens Vej 65 Denmark
| | - Jeanne D. Johansen
- Department of Dermato-Allergology; National Allergy Research Centre, Copenhagen University Hospital Gentofte; Hellerup 2900, Niels Andersens Vej 65 Denmark
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44
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Uter W, Gefeller O, Geier J, Schnuch A. Contact sensitization to cobalt - multifactorial analysis of risk factors based on long-term data of the Information Network of Departments of Dermatology. Contact Dermatitis 2014; 71:326-37. [DOI: 10.1111/cod.12284] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 05/28/2014] [Accepted: 06/16/2014] [Indexed: 01/08/2023]
Affiliation(s)
- Wolfgang Uter
- Department of Medical Informatics, Biometry and Epidemiology; University of Erlangen/Nürnberg; D-91054 Erlangen Germany
| | - Olaf Gefeller
- Department of Medical Informatics, Biometry and Epidemiology; University of Erlangen/Nürnberg; D-91054 Erlangen Germany
| | - Johannes Geier
- Information Network of Departments of Dermatology; University of Göttingen; D-37075 Göttingen Germany
| | - Axel Schnuch
- Information Network of Departments of Dermatology; University of Göttingen; D-37075 Göttingen Germany
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45
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Bregnbak D, Thyssen JP, Zachariae C, Johansen JD. Characteristics of chromium-allergic dermatitis patients prior to regulatory intervention for chromium in leather: a questionnaire study. Contact Dermatitis 2014; 71:338-47. [DOI: 10.1111/cod.12291] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 07/02/2014] [Accepted: 07/02/2014] [Indexed: 11/30/2022]
Affiliation(s)
- David Bregnbak
- Department of Dermato-Allergology; National Allergy Research Centre, Copenhagen University Hospital Gentofte; Ledreborg Allé 40, Gentofte 2820 Denmark
| | - Jacob P. Thyssen
- Department of Dermato-Allergology; National Allergy Research Centre, Copenhagen University Hospital Gentofte; Ledreborg Allé 40, Gentofte 2820 Denmark
| | - Claus Zachariae
- Department of Dermato-Allergology; Copenhagen University Hospital Gentofte, Niels Andersens Vej 65; Hellerup 2900 Denmark
| | - Jeanne D. Johansen
- Department of Dermato-Allergology; National Allergy Research Centre, Copenhagen University Hospital Gentofte; Ledreborg Allé 40, Gentofte 2820 Denmark
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Hedberg YS, Qian B, Shen Z, Virtanen S, Wallinder IO. In vitro biocompatibility of CoCrMo dental alloys fabricated by selective laser melting. Dent Mater 2014; 30:525-34. [PMID: 24598762 DOI: 10.1016/j.dental.2014.02.008] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Revised: 01/13/2014] [Accepted: 02/12/2014] [Indexed: 10/25/2022]
Abstract
OBJECTIVE Selective laser melting (SLM) is increasingly used for the fabrication of customized dental components made of metal alloys such as CoCrMo. The main aim of the present study is to elucidate the influence of the non-equilibrium microstructure obtained by SLM on corrosion susceptibility and extent of metal release (measure of biocompatibility). METHODS A multi-analytical approach has been employed by combining microscopic and bulk compositional tools with electrochemical techniques and chemical analyses of metals in biologically relevant fluids for three differently SLM fabricated CoCrMo alloys and one cast CoCrMo alloy used for comparison. RESULTS Rapid cooling and strong temperature gradients during laser melting resulted in the formation of a fine cellular structure with cell boundaries enriched in Mo (Co depleted), and suppression of carbide precipitation and formation of a martensitic ɛ (hcp) phase at the surface. These features were shown to decrease the corrosion and metal release susceptibility of the SLM alloys compared with the cast alloy. Unique textures formed in the pattern of the melting pools of the three different laser melted CoCrMo alloys predominantly explain observed small, though significant, differences. The susceptibility for corrosion and metal release increased with an increased number (area) of laser melt pool boundaries. SIGNIFICANCE This study shows that integrative and interdisciplinary studies of microstructural characteristics, corrosion, and metal release are essential to assess and consider during the design and fabrication of CoCrMo dental components of optimal biocompatibility. The reason is that the extent of metal release from CoCrMo is dependent on fabrication procedures.
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Affiliation(s)
- Yolanda S Hedberg
- Institute of Surface Science and Corrosion, Department of Materials Science and Engineering 4, Friedrich-Alexander-University of Erlangen-Nuremberg, Martensstrasse 7, 91058 Erlangen, Germany; KTH Royal Institute of Technology, School of Chemical Science and Engineering, Department of Chemistry, Division of Surface and Corrosion Science, Drottning Kristinas väg 51, 10044 Stockholm, Sweden.
| | - Bin Qian
- Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, 10691 Stockholm, Sweden
| | - Zhijian Shen
- Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, 10691 Stockholm, Sweden
| | - Sannakaisa Virtanen
- Institute of Surface Science and Corrosion, Department of Materials Science and Engineering 4, Friedrich-Alexander-University of Erlangen-Nuremberg, Martensstrasse 7, 91058 Erlangen, Germany
| | - Inger Odnevall Wallinder
- KTH Royal Institute of Technology, School of Chemical Science and Engineering, Department of Chemistry, Division of Surface and Corrosion Science, Drottning Kristinas väg 51, 10044 Stockholm, Sweden
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47
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Midander K, Julander A, Skare L, Thyssen JP, Lidén C. The cobalt spot test - further insights into its performance and use. Contact Dermatitis 2013; 69:280-7. [DOI: 10.1111/cod.12110] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Revised: 05/02/2013] [Accepted: 05/06/2013] [Indexed: 12/01/2022]
Affiliation(s)
- Klara Midander
- Institute of Environmental Medicine; Karolinska Institutet; 171 77; Stockholm; Sweden
| | - Anneli Julander
- Institute of Environmental Medicine; Karolinska Institutet; 171 77; Stockholm; Sweden
| | - Lizbet Skare
- Institute of Environmental Medicine; Karolinska Institutet; 171 77; Stockholm; Sweden
| | - Jacob P. Thyssen
- National Allergy Research Centre, Department of Dermato-Allergology; Copenhagen University Hospital Gentofte; 2900; Hellerup; Denmark
| | - Carola Lidén
- Institute of Environmental Medicine; Karolinska Institutet; 171 77; Stockholm; Sweden
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