Caton, J Depth of periodontal probe penetration related to clinical and histologic signs of gingival inflammation. [electronic resource] - Journal of periodontology Oct 1981 - 626-9 p. digital Publication Type: Journal Article ISSN: 0022-3492 Standard No.: 10.1902/jop.1981.52.10.626 doi Subjects--Topical Terms: AdultFemaleGingival Hemorrhage--pathologyGingivitis--diagnosisHumansMaleMiddle AgedOral Hemorrhage--pathologyPeriodontics--instrumentation