1. Nyvad B, Fejerskov O. Active root surfaces caries converted into inactive caries as a response to oral hygiene. Scandinavian Journal of Dental Research 1986;94:281-284.

2. Fluoride Varnish：an Evidence-Based Approach Research Brief. Association of State and Territorial Dental Directors Fluorides Committee. Sept. 2007.

3. Ferreira de Oliveira MA, Celeste RK, Rodrigues C. Topical fluoride for treating dental caries(Protocol). Cochrane Database of Systematic Reviews 2002, Issue 1. No：CD003454.

4. Marinho VCC, Higgins JPT, Logan S, Sheiham A. Fluoride varnishes for preventing denal caries in children and adolescents(Review). Cochrane Database of Systematic Reviews 2002, Issue 1. No：CD002279.

5. ADA. Report of the Council on Scientific Affairs. Evidence-based Clinical Recommendations： Professionally Applied Topical Fluoride, May 2006.(http：//www.ada.org/prof/resources/ pubs/jada/reports/report_fluoride.pdf)

6. Autio-Gold, JT, Tomar SL. Prevalence of noncavitated and cavitated caripus lesions in 5- year old Head Start school choldren in Alachua Country, Fluorida. Pediatr Dent 2005;27(1):54-60.

7. CDC. Recommendations for using fluoride to prevent and control caries in the United States. MMWR August 17, 2001:50(RR14):1-42.

8. Weintraub JA, Ramos-Gomez F, June B. Fluoride varnish efficacy in preventing early childhood caried. J Dent Res 2006;85(2):172-176.

9. Vieira A, Ruben JL, Huysmans MCDNJM. Effect of Titanium Tetrafluoride, Amine Fluoride and Fluoride Varnish on Enamel Erosion in vitro. Caries Res 2005;39:371-379.

10. Ritter AV, Miguez P, Caplan DJ, Swift EJ. Treating cervical dentin hypersensitivity with fluoride varnish. A randomized clinical varnish. JADA, 137:1013-1020.