title: Antimicrobial activity of calcium hydroxide liners on Streptococcus sanguis and S. mutans.
abstract: The antimicrobial activity of 10 calcium hydroxide liners on Streptococcus sanguis and S. mutans was studied. One hundred plates of tryticose soy agar-sheep red blood cells (10%), each with four distinct 3 mm diameter wells, were divided into two groups of 50. One group was inoculated with S. sanguis and the second group with S. mutans. A 4 mg liner was placed in each of three wells; the fourth well was left empty as a control. Plates were incubated at 37 degrees C and observed at 24 hours, 48 hours, and 7 days. All liners inhibited growth of both organisms. The inhibitory zones for S. mutans were larger than inhibitory zones for S. sanguis for all tested liners. Life Fast Set material had significantly less inhibitory effect on S. mutans. VLC Dycal, Life, and Life Fast Set materials had significantly less inhibitory effect on S. sanguis at p = 0.05.
authors.affiliation: Division of Endodontics, University of California, San Francisco, School of Dentistry.
authors.forename: R A
authors.initials: RA
authors.lastname: Barkhordar
authors.forename: D
authors.initials: D
authors.lastname: Kempler
mesh_terms: D001424:Bacterial Infections / Q000517:prevention & control; D002126:Calcium Hydroxide / Q000627:therapeutic use*; D003736:Dental Cavity Lining; D013295:Streptococcus mutans / Q000187:drug effects*; D013298:Streptococcus sanguis / Q000187:drug effects*
chemical_list: D002126:Calcium Hydroxide