• Share
  • Email
  • Embed
  • Like
  • Save
  • Private Content
Non Surgical Re-treatment with RNT Files
 

Non Surgical Re-treatment with RNT Files

on

  • 2,302 views

a presentation on non surgical root canal retreatment using RNT files.

a presentation on non surgical root canal retreatment using RNT files.

Statistics

Views

Total Views
2,302
Views on SlideShare
2,302
Embed Views
0

Actions

Likes
2
Downloads
0
Comments
1

0 Embeds 0

No embeds

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel

11 of 1 previous next

  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

    Non Surgical Re-treatment with RNT Files Non Surgical Re-treatment with RNT Files Presentation Transcript

    • Non-Surgical Re-treatment with RNT Files
      AlaaWaleedAlQutub
      Umm AlQura University , Faculty of Dentistry
    • Aetiology of root canal treatment failure
      Microbial Non-microbial
      failure
      Intraradicular infection
      Extraradicular infection
      Foreign body reaction
      Periradicular cyst
    • Non-surgical Re-treatment
      Hand instruments Ultrasonics
      (Hedstrom files+
      chloroform)
      RNT files
      • R-endo
      • ProTaper
      • R-Endo(Micro-Mega)
      • NiTi files : Efficiency, flexibility
      • respect of the canal anatomy
      • safety and short procedural time
      • allow apical irrigation to aid the disinfection of the apical zone and ideal preparation of the canal for three-dimensional filling.
      Rm
      Re
      R1
      R2
      R3
      Rs
    • Micro head
      • ProTaper(Dentsply)
      • Nickel-Titanium :Extreme flexibility
      • Unique multi-taper shape : effective cleaning &
      obturation, Minimizes file stress
      • Triangular cross-section, reducing
      dentine-instrument contact
      • New, non-cutting guiding tip
      • 13mm short handles : Easier access to posterior teeth
    • Review of Some Researches
    • Effectiveness of two NiTi rotary instruments and a hand file for removing gutta-percha in severely curved root canals during retreatment an ex vivo study
      Aim:
      To evaluate the effectiveness of hand files, proTaper & R-Endo rotary instruments in removing GP from curved canals
      Methodology .
      • Results :
      • No significant Differences between the method of removal
      • The apical third had the most remaining GP
      • none of the instruments fractured
      Conclusion:
      All instruments even ProTaper & R-Endo RNT files were inadequate for removal of filling material from root canal system
    • Efficacy of automated versus hand instrumentation during root canal retreatment
      Aim.
      Methodology
      Group A Group B
      • GG and K-files , Profiles, ProTaper, K3 , MicroMega Hero 642.
      • Assessed radiographically.
      • Split for evaluation in a stereomicroscope.
      • photomicrograph for further analysis .
      100 single rooted teeth
      Endofill + GP
      Sealer 26 + GP
    • Conclusion :
      A photomicrographic method was more effective than the radiographic method to evaluate filling debris.
      There was no significant difference between the filling materials in terms of their removal.
      K3 and ProTaper were more efficient than manual instrumentation.
    • Results:
      Significant differences between radiograph and photomicrographic evaluation methods.
      No significant differences in removal between filling materials
      Manual instrumentation left more debris on the canal walls compared to PtoTaper.
    • Final Conclusion
    • References
      Siqueira JF, Jr. Aetiology of root canal treatment failure : why well treated teeth can fail (Literature review ). International Endodontic Journal ,34 ,1-10,2001
      R.Gergi & C. Sabbagh (2007).Effectiveness of two NiTi rotary instruments and a hand file for removing gutta-percha in severely curved root canals during retreatment an ex vivo study. International Endodontic Journal, 40,532-537.
      A. C. de CarvalhoMaciel, M. F. ZaccaroScelza (2006) .Efficacy of automated versus hand instrumentation during root canal retreatment: an ex vivo study. International Endodontic Journal 39 (10), 779–784.