Erratum to: J Korean Acad Prosthodont 2012;50:10-20 (http://dx.doi.org/10.4047/jkap.2012.50.1.10)
There has been a mistake, claimed and confirmed by all the authors of Vol 50(1),2012,p10-20 issue, that first author should have been Chang-Gyu Lee instead of Jang-Hyun Paek.