Mäkinen, K K Studies on oral enzymes. VI. Hydrolysis of periodontal collagen by plaque enzyme extract. [electronic resource] - Acta odontologica Scandinavica Dec 1966 - 733-45 p. digital Publication Type: Journal Article ISSN: 0001-6357 Standard No.: 10.3109/00016356609028738 doi Subjects--Topical Terms: Alanine--analysisCollagen--analysisCysteine--pharmacologyDental PlaqueEdetic Acid--pharmacologyGlycine--analysisHumansHydrogen-Ion ConcentrationIn Vitro TechniquesIndicators and ReagentsPeriodontium--analysisPhosphates--analysisPhosphorus--analysisTissue Extracts