PT - JOURNAL ARTICLE ED - , TI - Poster Sessions DP - 2009 Sep 01 TA - American Dental Hygienists Association PG - 222--240 VI - 83 IP - 4 4099 - http://jdh.adha.org/content/83/4/222.short 4100 - http://jdh.adha.org/content/83/4/222.full SO - J Dent Hyg2009 Sep 01; 83