title: Comparative analysis of three different filling techniques and the effects of experimental internal resorptive cavities on apical microleakage.
abstract: OBJECTIVE
  The aim of this study was to evaluate the sealing abilities of three different gutta-percha techniques in experimentally defective roots (EDR) and non-defective roots (NR).
  
  
  METHODS
  Sixty canine teeth were divided into six groups of ten; Group 1, NR + cold lateral condensation (CLC); Group 2, EDR + LC; Group 3, NR + BeeFill; Group 4, EDR + BeeFill; Group 5, NR + Thermafil; and Group 6, EDR + Thermafil. Apical leakage was measured using a computerized fluid filtration meter with a laser system.
  
  
  RESULTS
  Statistical analysis revealed that the CLC demonstrated more microleakage in the EDR than in the NR (P < 0.01). Thermafil demonstrated more microleakage in the NR than in the EDR (P < 0.01). No statistically significant differences were found between the BeeFill groups (P > 0.05).
  
  
  CONCLUSIONS
  The results of this study indicate that internal resorptive cavities can affect the apical sealing properties of different root canal filling techniques, with Thermafil ensuring the lowest apical microleakage.
authors: Department of Endodontics, Inonu University, Malatya, Turkiye.
authors: Ali
authors: A
authors: Keles
authors: Department of Endodontics, Inonu University, Malatya, Turkiye.
authors: Fuat
authors: F
authors: Ahmetoglu
authors: Department of Endodontics, Inonu University, Malatya, Turkiye.
authors: Mevlut S
authors: MS
authors: Ocak
authors: Department of Conservative Dentistry, Inonu University, Malatya, Turkiye.
authors: Burak
authors: B
authors: Dayi
authors: Department of Endodontics, Selcuk University, Konya, Turkiye.
authors: Alperen
authors: A
authors: Bozkurt
authors: Department of Endodontics, Abant Izzet Baysal University, Bolu, Turkiye.
authors: Hasan
authors: H
authors: Orucoglu
keywords: Internal resorption; microleakage; root canal filling techniques