Obturation & Re-treatment (21)

Obturation sign 200hThe articles in this section investigate the ability to achieve a better level of obturation after instrumentation with the SAF System, as well as the use of the SAF System in removing the existing obturation material and reaching a higher level of cleanliness in retreatment.

In a few of the articles, in which the SAF was not portrayed as the preferred choice for treatment, a “ReDent’s note” was added, to suggest how working with the system according to the manufacturer’s directions could help achieve better results.

 

  1. Additional Info

    • ReDent Nova’s note

      This article reviews several of the articles in which the SAF System was shown to improve the cleaning results in re-treatment

    • publisher publisher
    • View abstract on PubMed. PMID 28214018
  2. Additional Info

    • ReDent Nova’s note

      The Self-Adjusting File was shown not to extrude any more debris than the rotary instruments used before it in the retreatment process

    • publisher publisher
    • View abstract on PubMed. PMID 26953903
  3. Additional Info

    • ReDent Nova’s note

      This research did not use the advised clinical protocol for retreatment with the self-adjusting file, including the use of a guttapercha softener (Chloroform or other), followed by 4 minutes of operation of the SAF with a combination of NaOCl and EDTA irrigants.

      Instead, the research used the SAF for only 2 minutes (1 minute with EDTA, another minute with NaOCl) and did not use any guttapercha softener. Had the advised clinical protocol been used, the results would have likely been improved.

    • publisher publisher
  4. Additional Info

    • ReDent Nova’s note

      This research was very far from using the Self-Adjusting File according to the clinical protocol, that defines the need to use the SAF for 4 minutes, in short pecking motions to WL, with continuous irrigation, and in re-treatments it is also advised to use gutta percha softener (chloroform).

      Instead, in this research (quote) "use of the SAF file was performed until reaching the WL".  The SAF was inserted and immediately pulled out of the canal, without the use of any form of gutta percha softening or any irrigant, without any pecking motions and without operating the SAF according to protocol. Improvement of the retreatment results after such poor use would be surprising.

    • publisher publisher
    • View abstract on PubMed. PMID 26778268
  5. Additional Info

    • ReDent Nova’s note

      This clinical research has found the SAF to provide satisfactory results, despite not following the clinical guidelines for the SAF System.

      In re-treatment, the use of a guttapercha solvent (chloroform) is highly recommended, as it helps remove the obturation material and reach a higher level of cleanliness, as shown in previous research (Abramovitz et al., Int Endod J 2012; Solomonov et al, J Endod 2012).

      Furthermore, using a NiTi rotary instrument after the SAF is unnecessary and creates further debris, and the use of EDTA was only done after the rotary instrument. Had the recommendation to use EDTA as part of the irrigation protocol with the SAF, the results would have most likely been better.

    • publisher publisher
    • View abstract on PubMed. PMID 26234543
  6. Additional Info

    • publisher publisher
    • View abstract on PubMed. PMID 25311342
  7. Additional Info

    • ReDent Nova’s note

       

      Despite the favorable results for the SAF System, it has not been used according to the clinical protocol of the system. The Self-Adjusting File was only used for 2 minutes, without any solvent, and the article does not indicate whether a 1.5mm or 2.0mm SAF was used. Had it been used according to the manufacturer's directions, the results are likely to be even better.

    • publisher publisher
    • View abstract on PubMed. PMID 25114976
  8. Additional Info

    • publisher publisher
    • View abstract on PubMed. PMID 23959377
  9. Additional Info

    • publisher publisher
    • View abstract on PubMed. PMID 23321240
  10. Additional Info

    • publisher publisher
    • View abstract on PubMed. PMID 22892752
  11. Additional Info

    • publisher publisher
    • View abstract on PubMed. PMID 22703671