title: "Stalactite" calculus formation.
authors.affiliation: Oral Diagnosis/Oral Medicine, School of Dentistry, Northwestern University, Chicago, IL 60611.
authors.forename: V H
authors.initials: VH
authors.lastname: Ackerman
authors.forename: E S
authors.initials: ES
authors.lastname: Smith
authors.forename: L J
authors.initials: LJ
authors.lastname: Pierce
mesh_terms: D000539:Alveolar Process / Q000000981:diagnostic imaging; D003728:Dental Calculus / Q000000981:diagnostic imaging* / Q000473:pathology; D005260:Female; D006801:Humans; D008875:Middle Aged; D008963:Molar / Q000000981:diagnostic imaging; D011859:Radiography