title: Sealing ability of Hybrid Root SEAL (MetaSEAL) in conjunction with different obturation techniques.
abstract: OBJECTIVE
  The objective of this study was to evaluate the apical sealing ability of Hybrid Root SEAL (MetaSEAL) in conjunction with different obturation techniques.
  
  
  METHODS
  Sixty-eight extracted human mandibular straight single-rooted teeth with mature apices were prepared using a step-back technique and divided into 4 experimental groups (n = 15). An additional 8 teeth were prepared for controls (3 for positive, 3 for negative control, and 2 more for calculating 100% leakage). The experimental groups were obturated with Hybrid Root SEAL (MetaSEAL) using cold lateral condensation, vertical condensation, Thermafil, and Ultrafil techniques. Fluid movement along the filled canals was measured using a fluid filtration method. Measurements were made at 2-minute intervals for 8 minutes. The data were calculated as microL/min and statistically analyzed using 1-way ANOVA and Duncan Test.
  
  
  RESULTS
  Cold lateral and vertical condensation had significantly less fluid movement than the Thermafil and Ultrafil groups. Thermafil group had the highest fluid movement values when compared with the other groups (P < .01).
  
  
  CONCLUSIONS
  Hybrid Root SEAL (MetaSEAL) had less fluid movement with cold lateral and vertical condensation techniques when compared with Thermafil and Ultrafil techniques.
authors.affiliation: Selcuk University, Faculty of Dentistry, Department of Endodontics, Konya, Turkey. Haleari@hotmail.com
authors.forename: Hale
authors.initials: H
authors.lastname: Ari
authors.forename: Sema
authors.initials: S
authors.lastname: Belli
authors.forename: Betul
authors.initials: B
authors.lastname: Gunes
mesh_terms: D000704:Analysis of Variance; D003763:Dental Leakage / Q000517:prevention & control*; D018772:Dental Marginal Adaptation; D006801:Humans; D008334:Mandible; D008689:Methacrylates / Q000737:chemistry*; D012387:Root Canal Filling Materials / Q000737:chemistry*; D012389:Root Canal Obturation / Q000379:methods*; D018915:Root Canal Preparation / Q000295:instrumentation / Q000379:methods; D018709:Statistics, Nonparametric; D019227:Tooth Apex
chemical_list: D008689:Methacrylates; D012387:Root Canal Filling Materials; C534239:metaseal