Dr. Susan Kinder Haake, "Microbiology of Dental Plaque," http://www.dent.ucla.edu/pic/members/microbio/mdphome.html (accessed July 31, 2006).

Web MD, "Self Examination for Dental Plaque," http://www.webmd.com/hw/dental/hw212228.asp (accessed July 31, 2006). 

Helen Fields, "Dental Plaque: Lung-Infecting Bacteria Hang Out on Seniors' Teeth," http://www.usnews.com/usnews/health/briefs/oral/hb050414d.htm (accessed July 31, 2006).

American Society for Microbiology, "Bacteria in Dental Plaque of Children May Predict Gum Disease as Adult," http://www.asm.org/Media/index.asp?bid=30759 (accessed July 31, 2006).