Matis B A
Department of Restorative Dentistry, Indiana University School of Dentistry, Indianapolis 46202, USA.
J Indiana Dent Assoc. 1998 Fall;77(3):27-32.
Thirty patients whose teeth had been bleached were given one of two toothpastes. One half of the group brushed with a toothpaste containing 10% carbamide peroxide (DW) and the other half with a toothpaste containing 3% hydrogen peroxide (HP) for three months. Color change from baseline was evaluated after 4 weeks and again after 12 weeks, using a shade guide and measured with a colorimeter at baseline. The DW toothpaste was able to stabilize the tooth-lightening effect of the bleaching gel better than the HP toothpaste. The HP product had a lower tooth sensitivity rating.
30名牙齿已进行过美白的患者被给予两种牙膏中的一种。该组中的一半用含有10%过氧化脲（DW）的牙膏刷牙，另一半用含有3%过氧化氢（HP）的牙膏刷牙，为期三个月。在4周后以及12周后评估相对于基线的颜色变化，使用比色板，并在基线时用色度计进行测量。DW牙膏比HP牙膏能更好地稳定漂白凝胶的牙齿美白效果。HP产品的牙齿敏感度评级较低。
