title: Evaluation of a mixture of zinc oxide, calcium hydroxide, and sodium fluoride as a new root canal filling material for primary teeth.
abstract: Endodontic treatment was performed on 25 pulpally involved mandibular primary molars in 4 to 9-year-old children; the root canals were obturated with a new root canal filling material consisting of a mixture of calcium hydroxide, zinc oxide, and 10% sodium fluoride solution, using hand-operated lentulo-spirals. All cases were evaluated clinically every 3 months and also radiographically every 6 months to assess the success of the treatment; we also examined the resorption of the root canal filling material from the root canals and the status of overpushed material, if any, as the tooth resorbed with the passage of time. At 6 months, endodontic treatment in 2 of the 25 teeth had failed and one tooth had exfoliated; the remaining 22 teeth were without any signs or symptoms. At the end of 2 years, 14 teeth could be evaluated; out of these 12 had physiologically exfoliated. It was observed that the rate of resorption of this new root canal obturating mixture was quite similar to the rate of physiologic root resorption in primary teeth. In three cases, where there was an overpush of the mixture, a gradual partial resorption was noted.
authors.affiliation: Unit of Pedodontic and Preventive Dentistry, Oral Health Sciences Center, Postgraduate Institute of Medical Education and Research, Chandigarh - 160 012, India. chawlahs@glide.net.in
authors.forename: H S
authors.initials: HS
authors.lastname: Chawla
authors.forename: S
authors.initials: S
authors.lastname: Setia
authors.forename: N
authors.initials: N
authors.lastname: Gupta
authors.forename: K
authors.initials: K
authors.lastname: Gauba
authors.forename: A
authors.initials: A
authors.lastname: Goyal
mesh_terms: D002126:Calcium Hydroxide / Q000737:chemistry / Q000627:therapeutic use; D002648:Child; D002675:Child, Preschool; D004338:Drug Combinations; D005500:Follow-Up Studies; D006801:Humans; D008334:Mandible; D008963:Molar / Q000601:surgery*; D012387:Root Canal Filling Materials / Q000737:chemistry* / Q000627:therapeutic use; D012389:Root Canal Obturation / Q000295:instrumentation / Q000379:methods*; D012969:Sodium Fluoride / Q000737:chemistry / Q000627:therapeutic use; D014078:Tooth Eruption / Q000187:drug effects; D014092:Tooth Root / Q000187:drug effects*; D014094:Tooth, Deciduous / Q000187:drug effects* / Q000601:surgery; D016896:Treatment Outcome; D015034:Zinc Oxide / Q000737:chemistry / Q000627:therapeutic use
chemical_list: D004338:Drug Combinations; D012387:Root Canal Filling Materials; D012969:Sodium Fluoride; D002126:Calcium Hydroxide; D015034:Zinc Oxide