title: Improving the accuracy of a fluid transport method.
abstract: OBJECTIVE
  To compare the sealing ability of the same root fillings when measured by a conventional fluid transport method that uses water or by a modified fluid transport method that uses a wetting fluid as tracer.
  
  
  METHODS
  The amount of fluid transport along the same root fillings (AH26, cold lateral compaction of gutta-percha) was measured in a cross-over design in fluid transport set-ups using either water or a wetting fluid as tracer.
  
  
  RESULTS
  A Wilcoxon signed-rank test revealed a significant difference in the amount of fluid transport measured along the same root fillings by the two fluid transport methods (P = 0.013). The fluid transport method using wetting fluid detected a significantly higher percentage of root fillings with fluid transport (P = 0.021).
  
  
  CONCLUSIONS
  Fluid transport using a wetting fluid as a tracer was more sensitive in the assessment of sealing ability of root fillings than the conventional fluid transport method using water.
authors.affiliation: Department of Conservative and Preventive Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, Amsterdam, The Netherlands. r.ozok@acta.nl
authors.forename: A R
authors.initials: AR
authors.lastname: Özok
authors.forename: B
authors.initials: B
authors.lastname: Verhaagen
authors.forename: P R
authors.initials: PR
authors.lastname: Wesselink
mesh_terms: D000704:Analysis of Variance; D001729:Bismuth; D018592:Cross-Over Studies; D004853:Epoxy Resins; D006171:Gutta-Percha; D006801:Humans; D057446:Hydrodynamics; D012387:Root Canal Filling Materials; D012388:Root Canal Irrigants; D012389:Root Canal Obturation / Q000379:methods; D012834:Silver; D014025:Titanium; D017155:Wettability; D014906:Wetting Agents
chemical_list: D004853:Epoxy Resins; D012387:Root Canal Filling Materials; D012388:Root Canal Irrigants; D014906:Wetting Agents; D012834:Silver; C028044:epoxy resin AH-26; D006171:Gutta-Percha; D014025:Titanium; D001729:Bismuth