Nickel and cobalt are major components of alloys used in orthodontics. The objectives of this cross-sectional study was to determine the prevalence of a nickel hypersensitivity reaction before and after orthodontic treatment with conventional stainless steel brackets and wires. The total sample consisted of 82 patients (55 females, and 27 males) from the Orthodontic Department at the Faculty of...

In dentistry, a variety of potentially allergenic metals are used, such as mercury, palladium, nickel, gold, chromium, cobalt and other metals. This paper describes a diagnostic approach from a dentist's point of view, which enables analysis of metals in a patient's oral cavity. If metal allergy is suspected, a micro analysis can be used to determine which metals are present in the restorations...

The aim of this study was to investigate the validity of self-patch testing for nickel allergy, in order to determine a cost-effective method for surveillance of the prevalence of nickel allergy. Population-based study including patch testing is the most reliable method to study the prevalence of allergy, but it is expensive and has logistical problems. A total of 191 dermatology patients refer...

Nickel is still the most frequent cause of contact allergy, despite the EU regulation limiting nickel release from consumer items intended for prolonged contact with the skin, such as jewellery, buttons, and watches. It is obvious that the current restriction is insufficient (1). It has been shown that nickel is deposited onto the skin by short and repetitive contact in amounts sufficient to ca...

Infection from Toxocara species may give rise to a large array of clinical symptoms, including apparent manifestations of allergy such as asthma, urticaria/angioedema, and dermatitis. We report a case, thus far not described, of contact dermatitis attributed to nickel allergy but caused by Toxocara infection. The patient was a 53-year-old woman presenting from 10 years a dermatitis affecting he...

Pirrotta L et al. Patients with allergic contact dermatitis to nickel and nonallergic individuals display different nickel-specific T cell responses. Evidence for the presence of effector CD8+ and regulatory CD4+ T cells. J Invest Dermatol 1998; 111: 621–628. 2 Artik S, von Vultée C, Gleichmann E, Schwarz T, Griem P. Nickel allergy in mice: enhanced sensitization capacity of nickel at higher ox...

Methods Demonstrate SNAS which is characterized by contact dermatitis to nickel and systemic reactions after ingestion of rich foods nickel.We evaluated adult patients with ages between 18 and 65 years, positive patch test for nickel, grades 3 and 4, and who had symptoms suggestive of SNAS.These patients had eczematous lesions of contact dermatitis did not disappear. That even with the exclusio...

and Introduction Abstract Nickel allergy can result in both cutaneous and systemic manifestations, and can range from mild to severe symptoms. A severe form of this allergy is the Systemic nickel allergy syndrome, clinically characterized by cutaneous manifestions (contact dermatitis, pompholyx, hand dermatitis dyshydrosis, urticaria) with chronic course and systemic symptoms (headache, astheni...