RT Journal Article SR Electronic T1 Review of: Tooth Whitening: Indications and Outcomes of Night guard Vital Bleaching JF American Dental Hygienists Association JO J Dent Hyg FD American Dental Hygienists Association SP 38 OP 38 VO 82 IS 5 A1 Joan Gibson-Howell YR 2008 UL http://jdh.adha.org/content/82/5/38.abstract AB