The relationship between calculus index and protease activity in saliva.
D000328:Adult; D000367:Age Factors; D003728:Dental Calculus / Q000473:pathology*; D006801:Humans; D008875:Middle Aged; D009911:Oral Hygiene Index; D010447:Peptide Hydrolases / Q000378:metabolism*; D012463:Saliva / Q000201:enzymology*; D012471:Salivary Proteins and Peptides / Q000032:analysis
D012471:Salivary Proteins and Peptides; D010447:Peptide Hydrolases