Research Article

Efficacy of Crest Herbal Toothpaste in “Clearing Internal Heat”: A Randomized, Double-Blind Clinical Study

Box 1

Description for package of toothpaste used in the trial.
Experimental Product (Not for sale. For subject’s use only).
Study #: 2009OCC19.
Usage Instruction: Brush twice daily for two minutes.
Distributed by: Rui Wang, Beijing Health Tech Research Co., Ltd. Beijing, China 100086.
This product may contain Fluoride. Net Weight: ≤120 g.
Notes: Store at room temperature. Keep out of the reach of children. Do not swallow. In
case of medical emergency, call Rui Wang, at a cell phone number.