id	keyword
dentistry3000-183	dental
dentistry3000-183	covid-19
dentistry3000-183	oral
dentistry3000-183	health
dentistry3000-183	impact
dentistry3000-183	patient
dentistry3000-183	pandemic
dentistry3000-183	doi
dentistry3000-183	visits
dentistry3000-183	respondents
dentistry3000-183	outbreak