id	keyword
dentistry3000-532	appliance
dentistry3000-532	aligner
dentistry3000-532	pmid
dentistry3000-532	alignment
dentistry3000-532	incisors
dentistry3000-532	trial
dentistry3000-532	group
dentistry3000-532	weeks
dentistry3000-532	treatment
dentistry3000-532	aligner appliance
dentistry3000-532	nickel