title: Evolution and prognosis of necrotic primary teeth after pulpectomy.
abstract: OBJECTIVE
  To study the evolution of 308 necrotic primary teeth after pulpectomy technique with resorbable paste (Kri-1 + calcium hydroxide + metacresol-formaldehyde) after 30 months.
  
  
  METHODS
  134 children between 2-9 years were included, among which they had 348 pulpectomized teeth. Out of these 348 teeth, 308 had necrotic pulp and were included in the study. The filling material consisted of a paste based on Walkhoff's master formula and consisted of the combination of Kri-1a (80.8% iodoform, 2.025% parachlorophenol, 1.215% menthol, 4.68% camphor and excipient 15 mg), pure calcium hydroxide and metacresol formaldehyde (metacresol 20 mg, formaldehyde 20 mg, eugenol 20 mg, eucalyptus 6 mg and excipient 40 mg). Root canal filling was performed in one session by one operator.
  
  
  RESULTS
  Pain, swelling, and fistula resolution was observed in most cases at the first recall. Progressive remission of radiolucent areas was also observed. A relationship between fistula and radiolucency in pre-treated furcation area was observed, and, in some cases, premature eruption of permanent teeth was recorded. Only two cases out of 308 treated teeth required extraction.
authors.affiliation: Department of Pediatric Dentistry, Faculty of Dentistry, University of Seville, Spain. coinsol@telefonica.net
authors.forename: Asunción Mendoza
authors.initials: AM
authors.lastname: Mendoza
authors.forename: J Enrique Solano
authors.initials: JE
authors.lastname: Reina
authors.forename: Franklin
authors.initials: F
authors.lastname: Garcia-Godoy
mesh_terms: D002126:Calcium Hydroxide / Q000627:therapeutic use; D002164:Camphor / Q000627:therapeutic use; D016009:Chi-Square Distribution; D002648:Child; D002675:Child, Preschool; D002733:Chlorophenols / Q000627:therapeutic use; D003751:Dental Fistula / Q000188:drug therapy / Q000209:etiology; D003790:Dental Pulp Necrosis / Q000150:complications / Q000188:drug therapy*; D004338:Drug Combinations; D005260:Female; D005557:Formaldehyde / Q000627:therapeutic use; D006801:Humans; D006847:Hydrocarbons, Iodinated / Q000627:therapeutic use; D008297:Male; D008610:Menthol / Q000627:therapeutic use; D011379:Prognosis; D057872:Pulp Capping and Pulpectomy Agents / Q000627:therapeutic use*; D011670:Pulpectomy / Q000379:methods*; D012391:Root Resorption / Q000188:drug therapy / Q000209:etiology; D014094:Tooth, Deciduous / Q000473:pathology*; D016896:Treatment Outcome
chemical_list: D002733:Chlorophenols; D004338:Drug Combinations; D006847:Hydrocarbons, Iodinated; D057872:Pulp Capping and Pulpectomy Agents; D008610:Menthol; D005557:Formaldehyde; C029056:camphor, menthol, parachlorophenol drug combination; D002164:Camphor; C010473:iodoform; D002126:Calcium Hydroxide