0	0.16458	bone group pain patients laser surgery surgical clinical 
1	0.1142	pmid tooth teeth class dental cleft mandibular prevalence 
2	0.1032	caries group effect enamel dental saliva fluoride groups 
3	0.1166	surface denture materials strength resin material group acrylic 
4	0.11427	root canal teeth using endodontic apical canals treatment 
5	0.1426	tion ing con treatment oral pmid case pitt.edu 
6	0.13546	oral cells periodontal periodontitis cell disease expression group 
7	0.23435	dental oral health students among patients clinical treatment