id	keyword
dentistry3000-449	dental
dentistry3000-449	pain
dentistry3000-449	anxiety
dentistry3000-449	anesthesia
dentistry3000-449	study
dentistry3000-449	vas
dentistry3000-449	adult
dentistry3000-449	age
dentistry3000-449	patients
dentistry3000-449	covid-19
dentistry3000-449	pandemic