id	keyword
dentistry3000-556	h2o2
dentistry3000-556	study
dentistry3000-556	rinse
dentistry3000-556	mean
dentistry3000-556	trial
dentistry3000-556	chx
dentistry3000-556	placebo
dentistry3000-556	groups
dentistry3000-556	acid
dentistry3000-556	mouth
dentistry3000-556	hydrogen
dentistry3000-556	peroxide
dentistry3000-556	efficacy
dentistry3000-556	effect