1087 the Prevalence of Metal Allergy in the Patients with Orthodontic Appliance

Wednesday, 14 October 2015
Hall D1 Foyer (Floor 3) (Coex Convention Center)

Hana Bak, MD, PhD , Dermatology, Cheongdam-Hana Dermatology, SEOUL, South Korea

Yongwon Lee, MD, PhD , Division of Pulmonology-Allergy, Respiratory Center, Catholic Kwandong University International St. Mary’s Hospital, College of Medicine, INCHEON, South Korea

During the last decades, the prevalence of metal contact allergy has been high. Among Danish  female patients as well as North American patients, the occurrence of metal sensitization has increased. The importance of metal exposure from fixed orthodontic appliance is under discussion as fixed orthodontic appliance contain metals including nickel, chromium, cobalt and mercury. As our knowledge, it would be the first report about relationship between metal allergy and orthodontics.

 We investigated the association with prevalence of metals including nickel, chromium, cobalt, and mercury by patch test and orthodontic appliance. Additionally we investigated the coincidence of resin and colophonium sensitization which is adhesive materials of orthodontic appliance with the patients with orthodontic appliance. In total, 150 patients were included and performed patch test. The patients characteristics including orthodontic appliance history were collected with a questionnaire and clinical investigation.

 The incidence of metal allergy was significantly high in the patients with experience of orthodontic appliance. Especially nickel and cobalt allergy were more significantly correlated with orthodontics history. In metal allergy, orthodontics could be an important role.