Dental metal allergy is not the main cause of palmoplantar Pustulosis

Abstract

Metal allergy as a possible cause of Palmoplantar pustulosis (PPP) is a controversial issue, ^1‐6 and in particular there is insufficient evidence that removal of dental metal leads to resolution of PPP.　This study involved 257 PPP patients (86 males and 171 females, 20‐78 years old) who underwent patch testing for metal allergy between 2000 and 2014 at Niigata University Medical and Dental Hospital. Patients who had suffered repeated eruptions of non‐infectious pustules on the palms and soles were diagnosed as having PPP. Arthralgia was observed in 21% of the patients and 75.1% (193 patients) had a history of smoking.

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