title: Depth and percentage of penetration of endodontic sealers into dentinal tubules after root canal obturation using a lateral compaction technique: a confocal laser scanning microscopy study.
abstract: OBJECTIVE
  The aim was to compare the percentage and depth of sealer penetration into dentinal tubules during obturation using Sealer 26, GuttaFlow, or Sealapex in root canals filled with the lateral compaction technique.
  
  
  METHODS
  Thirty root canals filled with the lateral compaction technique using GuttaFlow (n = 10), Sealapex (n = 10), or Sealer 26 (n = 10) were analyzed using confocal microscopy. The teeth were sectioned at 3 and 5 mm from the apex, and statistical analyses was performed using analysis of variance-Tukey test (P < .05).
  
  
  RESULTS
  Sealapex showed the deepest sealer penetration at both levels evaluated (P < .05). No statistically significance was found between Sealer 26 and GuttaFlow at the 3 mm and 5 mm levels. No statistical significance was found in the percentage of penetration around the root canal wall among the 3 sealers evaluated at both levels.
  
  
  CONCLUSIONS
  Although Sealapex displayed deeper penetration into the dentinal tubules there was no difference in the percentage of adaptation to the root canal walls among the 3 sealers evaluated.
authors.affiliation: Postgraduate student, Department of Endodontics, Dental School of Bauru, University of São Paulo, Sao Paulo, Brazil. ronaldordinola@usp.br
authors.forename: Ronald
authors.initials: R
authors.lastname: Ordinola-Zapata
authors.forename: Clovis Monteiro
authors.initials: CM
authors.lastname: Bramante
authors.forename: Marcia S Z
authors.initials: MS
authors.lastname: Graeff
authors.forename: Aldo
authors.initials: A
authors.lastname: del Carpio Perochena
authors.forename: Rodrigo Ricci
authors.initials: RR
authors.lastname: Vivan
authors.forename: Ericson Janolio
authors.initials: EJ
authors.lastname: Camargo
authors.forename: Roberto Brandão
authors.initials: RB
authors.lastname: Garcia
authors.forename: Norberti
authors.initials: N
authors.lastname: Bernardineli
authors.forename: James L
authors.initials: JL
authors.lastname: Gutmann
authors.forename: Ivaldo Gomes
authors.initials: IG
authors.lastname: de Moraes
mesh_terms: D001729:Bismuth / Q000737:chemistry; D002126:Calcium Hydroxide / Q000737:chemistry; D018772:Dental Marginal Adaptation; D003786:Dental Pulp Cavity / Q000648:ultrastructure*; D003804:Dentin / Q000648:ultrastructure*; D004129:Dimethylpolysiloxanes / Q000737:chemistry; D004338:Drug Combinations; D005456:Fluorescent Dyes; D006171:Gutta-Percha / Q000737:chemistry; D006801:Humans; D008422:Materials Testing; D018613:Microscopy, Confocal; D012235:Rhodamines; D012387:Root Canal Filling Materials / Q000737:chemistry*; D012388:Root Canal Irrigants / Q000008:administration & dosage; D012389:Root Canal Obturation / Q000379:methods*; D018915:Root Canal Preparation / Q000379:methods; D012459:Salicylates / Q000737:chemistry; D016369:Smear Layer; D013499:Surface Properties; D019227:Tooth Apex / Q000648:ultrastructure
chemical_list: D004129:Dimethylpolysiloxanes; D004338:Drug Combinations; D005456:Fluorescent Dyes; C515718:GuttaFlow; D012235:Rhodamines; D012387:Root Canal Filling Materials; D012388:Root Canal Irrigants; D012459:Salicylates; C080620:Sealer 26; C055601:Sealapex; D006171:Gutta-Percha; C029773:rhodamine B; D002126:Calcium Hydroxide; D001729:Bismuth