title: Setting times of Resilon and other sealers in aerobic and anaerobic environments.
abstract: Eleven sealers, including Resilon sealer, were mixed according to manufacturer's instructions. Setting times were determined in both aerobic and anaerobic environments. Two samples of each sealer were mixed and placed in the following conditions: (a) uncovered in an aerobic incubator; (b) covered with a glass cover-slip in the aerobic incubator; (c) covered with phosphate buffered saline in an aerobic incubator; (d) uncovered in an anaerobic incubator; (e) light cured and then placed in the aerobic incubator (Resilon only). All samples were tested for setting times with a Gillmore needle at 15, 30, and 60 minutes, then hourly up to 8 hours, then at 24, 48, and 72 hours, and then weekly up to 3 weeks. Ketac Endo and Kerr Tubliseal, were the fastest sealers to set in aerobic environments. Ketac Endo and Resilon were the fastest sealers to set in anaerobic environments. Roth 801 and Roth 811 were the slowest sealers to set, taking over 3 weeks to set in either anaerobic or aerobic environments. Resilon sealer set in 30 minutes in both anaerobic environments. However, in the presence of air, Resilon took a week to set and when placed in PBS, an uncured layer remained on the surface.
authors.affiliation: Oregon Health & Science University, Portland, Oregon, USA.
authors.forename: Benjamin A
authors.initials: BA
authors.lastname: Nielsen
authors.forename: William J
authors.initials: WJ
authors.lastname: Beeler
authors.forename: Christina
authors.initials: C
authors.lastname: Vy
authors.forename: J Craig
authors.initials: JC
authors.lastname: Baumgartner
mesh_terms: D000332:Aerobiosis; D000693:Anaerobiosis; D002126:Calcium Hydroxide / Q000737:chemistry; D004853:Epoxy Resins / Q000737:chemistry; D005054:Eugenol / Q000737:chemistry; D006244:Hardness; D008422:Materials Testing; D044367:Phase Transition; D012387:Root Canal Filling Materials / Q000737:chemistry* / Q000528:radiation effects; D013997:Time Factors; D015034:Zinc Oxide / Q000737:chemistry; D015035:Zinc Oxide-Eugenol Cement / Q000737:chemistry
chemical_list: D004853:Epoxy Resins; D012387:Root Canal Filling Materials; C070892:Sultan; D015035:Zinc Oxide-Eugenol Cement; C534916:epoxy resin-based root canal sealer; C486892:resilon sealer; C029777:Pulpdent; D005054:Eugenol; C074935:Roth's 801 Sealer; C095719:Roth's 811 sealer; C048769:tubliseal; C076543:Kerr Pulp Canal Sealer; D002126:Calcium Hydroxide; D015034:Zinc Oxide