2[1]Scott DS, Hirschman R. Psychological aspects of dental anxiety in adults. J Am Dent Assoc, 1982,104:27
3[2]Corah NL, Gale EN, Illig SJ. Assessment of a dental anxiety scale. J Am Dent Assoc, 1978,97:816
4[3]Hirschman R, Revland P, Hank G, et al. Effects of dental anxiety and phase of treatment on discomfort during dental simulation. J Dent Res, 1980,59:1064
5[4]Scott DS, Hirschman R, Schroder K. Historical antecedents of dental anxiety. J Am Dent Assoc, 1984,108:42
6[5]Hall N, Edmondson HD. The aetiology and psychology of dental fear. Br Dent J, 1983,154:247
7[6]Public Education Report. Surveys document more people choosing root canal therapy over extraction. Chicago: American Association of Endodontists,1987.1～2
8Sodeyama A. Kokubyo Gakkai Zasshi . 1996
9Toda S. Kokubyo Gakkai Zasshi . 1999
10al Ali F,Heath MR,Wright PS. European Journal of Prosthodontics . 1998
