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1- Dentistry Student, Student Research Committee, Faculty of Dentistry, Mazandaran University of Medical Sciences, Sari, Iran.
2- Department of Pediatric Dentistry, Faculty of Dentistry, Mazandaran University of Medical Sciences, Sari, Iran , azamnahvi.pedodontist@gmail.com
Abstract:   (86 Views)
Context: Stainless steel crowns (SSC) are stable and durable restorations and are a valuable technique in repairing deciduous teeth with extensive caries. Nickel and chromium are two main composing elements of SSCs, which are released in the oral environment, and can cause allergic reactions, especially in nickel-sensitive children. Symptoms of these reactions include gingival edema and loss of alveolar bone.
Evidence acquisition: The data we used in our review were searched from articles published until 2020 and collected from official web pages and documents published from different international institutions. Topics discussed in this review were dietary allergy to nickel, nickel release from SSCs, mechanism of allergy action, and its symptoms. After the abstract screening, we recalled relevant studies for full-text review.
Results: We are exposed to nickel every day in various forms, some people show hypersensitivity reactions with the slightest contact with this metal. Nickel is a base metal and is one of the elements used in stainless steel crowns. Nickel is released from SSCs during the corrosion process in the oral environment. Excessively released nickel ions cause chronic fatigue syndrome, sensitive lymph nodes, muscle aches, headaches.
Conclusion: As the amount of nickel released from SSCs is less than the number of other sources, the immunological reactions of a large percentage of the population to this excess amount of nickel ions in the bloodstream are perfectly normal and cause no severe issues.
Keywords: Nickel, Allergy, SSCs, Children
Full-Text [PDF 693 kb]   (39 Downloads)    
Type of Study: Narrative Review | Subject: Dentistry
Received: 2020/09/27 | Accepted: 2020/11/18

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