Vos, M H Quantitative measurement of periodontal bone changes by digital subtraction. [electronic resource] - Journal of periodontal research Nov 1986 - 583-91 p. digital Publication Type: Journal Article ISSN: 0022-3484 Standard No.: 10.1111/j.1600-0765.1986.tb01496.x doi Subjects--Topical Terms: Alveolar Process--anatomy & histologyComputer SimulationHumansMandible--anatomy & histologyRadiographic Image EnhancementSubtraction Technique