Treatment of pincer nail deformity using dental correction principles

To the Editor: Pincer nail deformity (PND) is characterized by excessive transverse curvature of the nail plate. There is no treatment of choice. Superelastic nickel-titanium has been used to bend PND to its normal shape in previous reports, and the procedure involves drilling a hole in the nail plate or applying a hook structure to fix the material to the nail.1-3 In this study, we used dental correction methods to improve PND.