title: Evaluation of an apatite cement as a root end filling material.
abstract: A self-setting apatite cement, EBA cement, and amalgam with varnish were tested for root end sealing ability using a fluid filtration and dye technique. Single-rooted human teeth were prepared in vitro to receive root end fillings. Experimental groups were amalgam with two layers of varnish, EBA cement with dry cavity, EBA cement within a wet cavity, apatite cement within a dry cavity, and apatite cement within a wet cavity. Fluid filtration measurements were made at 6, 24, and 7 days, and 1 and 3 months. Each specimen was also subjected to a dye leakage test using Procion Green dye at 3 months. Results indicated that apatite cement provided a comparable seal to amalgam and EBA cement. This finding, in conjunction with its excellent biocompatibility, suggests that apatite cement is an acceptable alternative to present-day root end filling materials.
authors.affiliation: Department of Edodontics, Indiana University, School of Dentistry, Indianapolis 46202, USA.
authors.forename: A
authors.initials: A
authors.lastname: MacDonald
authors.forename: B K
authors.initials: BK
authors.lastname: Moore
authors.forename: C W
authors.initials: CW
authors.lastname: Newton
authors.forename: C E
authors.initials: CE
authors.lastname: Brown
mesh_terms: D000537:Aluminum Oxide; D001031:Apatites; D003722:Dental Alloys; D003723:Dental Amalgam; D003738:Dental Cements; D003763:Dental Leakage; D005069:Evaluation Studies as Topic; D006801:Humans; D012184:Retrograde Obturation / Q000379:methods; D012387:Root Canal Filling Materials; D018709:Statistics, Nonparametric; D014867:Water
chemical_list: D001031:Apatites; D003722:Dental Alloys; D003738:Dental Cements; C022998:EBA alumina cement; C093695:G-5 apatite cement; D012387:Root Canal Filling Materials; D014867:Water; C036886:tytin; D003723:Dental Amalgam; D000537:Aluminum Oxide