The retreatment abilities of ProTaper Next and F6 Skytaper: a micro-computed tomography study

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Sarıçam E. , İnce Yusufoğlu S. , Ocak M., Geneci F. , Çelik H. H.

European Oral Research, vol.56, no.2, pp.1-15, 2021 (Journal Indexed in ESCI)

  • Publication Type: Article / Article
  • Volume: 56 Issue: 2
  • Publication Date: 2021
  • Doi Number: 10.26650/eor.20210009
  • Title of Journal : European Oral Research
  • Page Numbers: pp.1-15


Purpose: The aim of this study was to evaluate the retreatment abilities of the ProTaper Next (PTN) and F6 SkyTaper (F6) systems by using micro-computed tomography (micro-ct), radiographic and microscopic imaging techniques. Materials and Methods: The root canals of twenty-six extracted mandibular premolar teeth were prepared and obturated. For the retreatment procedure, the teeth were randomly divided into two equal groups according to endodontic instruments: PTN (X4) and F6 (#40/.06). Preand post-operative filling material volumes were measured with micro-ct, and areas were measured with radiographic and microscopic imaging techniques. The percentages of residual material calculated were statistically compared. Results: There was no statistically significant difference between F6 and PTN for retreatment efficacy in the micro-ct and radiographic imaging techniques. PTN demonstrated better cleaning ability when evaluated by microscopic imaging. (p< 0.05). The correlation was moderate between micro-ct and radiographic, and micro-ct and microscopic imaging groups; however, it was strong between radiographic and microscopic imaging methods. Conclusion: The PTN and F6 files had similar effects in the removal of filling material with micro-ct evaluation. The radiographic imaging method gave similar results with micro-ct imaging