6Douglass JM, Yi W, Xue ZB, et aL Dental caries in pre- school Beijing and Connecticut children as described by a new caries analysis system[J]. Community Dent Oral Epidemiol, 1994, 22 (2) : 94-99.
7MeUor A. Management of the anxious patient: What trea- tments are available[J]. Dent Update, 2007, 34(2):108- 110, 113-114.
8Weinstein P, Shimono T, Domoto P, et Dental fear in Japan: Okayama Prefecture school study of adolescents and adults[J]. Anesth Prog, 1992, 39(6):215-220.
9Locker D, Liddell A. Clinical correlates of dental an- xiety among older adults[J]. Community Dent Oral Epi- demiol, 1992, 20(6):372-375.
10Enkling N, Marwinski G, Jren P. Dental anxiety in a representative sample of residents of a large German city [J] Clin Oral. Investig, 2006, 10(1):84-91.