HENNING, F R Method for studying limits of gingival crevice and relative strength of "epithelial attachment". [electronic resource] - Journal of dental research - 653-9 p. digital Publication Type: Journal Article ISSN: 0022-0345 Standard No.: 10.1177/00220345630420021301 doi Subjects--Topical Terms: Epithelial AttachmentGingivaHumansTooth