1Fincham AG, Shuler CF. The changing face of dental education : the impact of PBL[J]. J Dent Educ, 2001,65(5) :406 -421.
2Cheng BS. Problem - based learning and the workplace : do dental hygienists in Hong Kong continue to use the skills acquired in their studies? [J]. J Dent Educ,2009,73(8) :991 -1000.