IADR Abstract Archives

Hand Versus Rotary Instrumentation In Endodontically Treating Single-rooted Teeth

Objectives: To determine the efficiency and effectiveness of hand instrumentation (K files) compared with rotary instrumentation (Hero Shaper 642®) in preparing single-rooted canals. 

Methods: This study was performed by a novice clinician on forty single-rooted extracted teeth. The teeth were randomly assigned into two groups (Group H and Group R) of 20 each once the working lengths were established. Group H was prepared with conventional K files employing the crown-down technique, while Group R was prepared with Hero Shaper 642® rotary files. Working time was noted to determine efficiency. Stereomicroscopic analysis and radiographic analysis was performed to evaluate canal taper and procedural errors.

Results: Working time was longer in Group H (17.9 minutes) when compared to Group R (8.6 minutes). Endodontic preparation by hand instrumentation revealed over-preparation of the canals, ledge formation and instrument fracture. Rotary instrumentation displayed conservative, tapered preparation with minor procedural errors.

Conclusions: Rotary instrumentation proved to be more efficient, less time consuming, easier to use with fewer procedural errors when compared to the hand instrumentation technique.

South African Division
2012 South African Division (Johannesburg, South Africa)
Johannesburg, South Africa
2012

Scientific Groups
  • Patel, Ebrahim  ( University of the Witwatersrand, Johannesburg, N/A, South Africa )
  • Tootla, Saidah  ( University of the Witwatersrand, Johannesburg, N/A, South Africa )
    • Education Research