TL;DR: Allergic contact dermatitis (ACD) caused by (meth)acrylates is traditionally an occupational disease among dentists, printers, and fibreglass workers but with the use of artificial nails, cases have been reported both in nail technicians and in users.
Abstract: SummaryBackgound
Allergic contact dermatitis (ACD) caused by (meth)acrylates is traditionally an occupational disease among dentists, printers, and fibreglass workers. With the use of artificial nails, cases have been reported both in nail technicians and in users.
Objectives
The aims of this study were to characterize ACD caused by (meth)acrylates, identify the responsible allergens, and assess the sensitivity of the patch test with 2-hydroxyethyl methacrylate (HEMA) for diagnosis.
Methods
An observational and retrospective study (January 2006–April 2013) was performed, evaluating and correlating epidemiological and clinical parameters and positive patch test results with (meth)acrylates.
Results
Among 2263 patch tested patients, 122 underwent aimed testing with an extended (meth)acrylate series, and 37 showed positive and relevant reactions. Twenty-five cases (67.6%) were occupational. Hand eczema with pulpitis was observed in 32 patients. Twenty-eight cases were related to artificial nails, 3 were related to dental materials, and 2 were industrial workers. Oral lesions associated with dental prostheses were observed in 4 patients. Thirty-one patients reacted to more than one (meth)acrylate. In our sample, beauty technicians working with artificial nails were the most affected group (80% of occupational cases).
Conclusion
HEMA detected 80.6% of our cases, and may be considered a good screening allergen. However, to perform an accurate diagnosis, it is safer to use a broader series of allergens.
TL;DR: It is thought that one of the main risks from artificial nails (ANs) is contact allergy, and the number of adverse reactions to nail‐care products is thought to be high.
Abstract: Background Although precise figures for adverse reactions to nail-care products are not available, it is thought that one of the main risks from artificial nails (ANs) is contact allergy.
Objective To evaluate the role of allergic contact dermatitis (ACD) as a cause of adverse reactions related to the use of ANs.
Method A 4-year retrospective study of patients with suspected ACD from ANs was conducted. Patients tested with the methacrylate artificial nail (MAAN) series were evaluated clinically and patch test results were analysed.
Results ACD to components of ANs may be a frequent cause of hand eczema, as observed in more than one-third of our patients (38.2%). About half of the patients were beauticians specializing in nail sculpturing who developed occupationally related ACD. All patients had involvement of the hands and fingers. Paronychia, nail dystrophy and onycholysis were less frequent. Dorsal hands and fingers, forearms and distant sites (face and neck) were more frequently affected in patients with occupational ACD (OACD). Typical clinical features were those of chronic dermatitis but atypical forms such as lichenoid and psoriasiform ACD were also observed. Mucosal erythema and oedema developed in two patients with ACD due to MAAN, after application of dental crowns with an acrylate-based cement. The most frequent allergens triggering ACD were 2-hydroxyethyl methacrylate (2-HEMA) and 2-hydroxypropyl methacrylate (2-HPMA) (17.5% each), followed by ethyleneglycol dimethacrylate (EGDM; 13.4%). A quarter of the patients tested with ethyl cyanoacrylate (ECA), a component of nail glue, had positive results.
Conclusions Acrylic monomers used when sculpturing ANs are important contact and occupational sensitizers that can produce cross-reactions with other acrylic compounds and trigger allergic reactions when re-exposure occurs in a different setting.
TL;DR: The results indicate that best practices for fingernail sanitation of food handlers are to maintain short fingernailed and scrub fingernails with soap and a nailbrush when washing hands.
TL;DR: 4 cases with differing presentations of contact allergy to acrylates in sculptured acrylic nails are presented and read ions include nail fold, fingertip and hand dermatitis, face and neck dermatitis dystrophic nail changes and paraesthesia.
Abstract: 4 cases with differing presentations of contact allergy to acrylates in sculptured acrylic nails are presented. These read ions include nail fold, fingertip and hand dermatitis, face and neck dermatitis dystrophic nail changes and paraesthesia. We discuss acrylic nails and review the previously published reactions to acrylates in acrylic nails.
TL;DR: In this paper, the proximal end of the nail includes a plurality of anchor points, preferably three semi-circular anchor points and the proper size nail is selected by use of sizers.
Abstract: An artificial nail includes an acrylic top layer mounted on a collagen support layer in the form of a mesh. The proximal end of the nail includes a plurality of anchor points, preferably three semi-circular anchor points. The proper size nail is selected by use of sizers. The toe or finger is prepared for implantation of the artificial nail by a puncturing tool which has a pattern of tines on its flat base.