title: [Comparison of two means for evaluation of apical microleakage].
abstract: OBJECTIVE
  To compare the consistency of two means of evaluating the apical microleakage.
  
  
  METHODS
  Forty-nine extracted single-rooted human teeth were divided into 3 experimental groups of 15 teeth each, in addition to a positive and negative control group of 2 teeth each. The teeth were instrumented, then obturated using lateral condensation and one of three endodontic sealers: AH Plus(group A), Cortisomol(group B) and zinc oxide eugenol(group C). The apical microleakage was measured by transparent tooth technique or dye dissolution each. SPSS 12.0 software package was used for One-way ANOVA and Kruslal-Wallis test.
  
  
  RESULTS
  The two methods both showed that the microleakage in group A was significantly less (P<0.05) than that in group B and C. There was no significant difference between group B and C(P>0.05).
  
  
  CONCLUSIONS
  Based on the dye penetration method, there is some consistency between the transparent tooth technique and dye dissolution method for evaluating apical microleakage.
authors.affiliation: State Key Laboratory of Oral Diseases, Sichuan University, Chengdu 610041, China. smile_pp@126.com
authors.forename: Yue-qiu
authors.initials: YQ
authors.lastname: Wang
authors.forename: Li
authors.initials: L
authors.lastname: Liu
authors.forename: Xin
authors.initials: X
authors.lastname: Yu
authors.forename: Yun-xia
authors.initials: YX
authors.lastname: Huang
authors.forename: Qin
authors.initials: Q
authors.lastname: Su
mesh_terms: D003763:Dental Leakage; D006801:Humans; D012387:Root Canal Filling Materials; D015035:Zinc Oxide-Eugenol Cement
chemical_list: C495565:Cortisomol; D012387:Root Canal Filling Materials; D015035:Zinc Oxide-Eugenol Cement