title: High-resolution electron microscopic study of salivary calculus.
abstract: The present study was performed to examine crystals in salivary calculus by high-resolution electron microscopy (HREM) and electron diffraction analyses. Microradiography (MR) showed that the calculus had three nuclei and showed complex shapes and mineralization. Hydroxyapatite (HA), in a variety of sizes and distributions, and the intermingling of HA and whitlockite (WH) at well-calcified areas, were observed.
authors.affiliation: Department of Ultrastructural Science, Tokyo Dental College, Chiba, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Tohda
authors.forename: K
authors.initials: K
authors.lastname: Yamakura
authors.forename: T
authors.initials: T
authors.lastname: Yanagisawa
mesh_terms: D002130:Calcium Phosphates / Q000032:analysis; D003461:Crystallography; D017886:Durapatite / Q000032:analysis; D005260:Female; D006801:Humans; D008854:Microscopy, Electron; D008875:Middle Aged; D015494:Salivary Gland Calculi / Q000737:chemistry / Q000648:ultrastructure*
chemical_list: D002130:Calcium Phosphates; C021767:whitlockite; D017886:Durapatite