2020 Volume 3 Issue 2 Pages 337-341
Contact dermatitis due to methacrylic resin in a dental assistant A 45-year-old female presented with erythema on the 1st to 3rd fingers of her right hand, which developed after she started working as a dental assistant one month before her visit. When washing a bottle containing resin at the dental clinic, the patient had wiped the resin with the 1st to 3rd fingers of her right hand while wearing gloves. As contact dermatitis from the resin was suspected, and a patch test was conducted using a resin series, the resin polymer, and the resin monomer（each diluted to 1%）. Two of the resin series samples（ethylene glycol dimethacrylate（EGDMA）and 2-hydroxyethyl methacrylate（2-HEMA））and the resin monomer produced positive reactions. The patient was thus diagnosed with contact dermatitis. Contact dermatitis caused by low molecular weight monomers, typically produces characteristic eruptions, including erythema and swelling of the fingers. In addition, methacrylic resin can penetrate many types of gloves；therefore, care is necessary when handling it.
（日本皮膚免疫アレルギー学会雑誌, 3（2）：337-341, 2020）
