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Change In Working Length At Different Stages Of Instrumentation As A Function Of Canal Curvature, Mei Tang, Garry L. Myers, Richard D. Archer, Al M. Best
Change In Working Length At Different Stages Of Instrumentation As A Function Of Canal Curvature, Mei Tang, Garry L. Myers, Richard D. Archer, Al M. Best
Graduate Research Posters
The aim of this study was to determine the change in working length (∆WL) before and after coronal flaring and after complete rotary instrumentation as a function of canal curvature. One mesiobuccal or mesiolingual canal from each of 43 extracted molars had coronal standardization and access performed. Once the access was completed, canal preparation was accomplished using Gates Glidden drills for coronal flaring and EndoSequence files for rotary instrumentation. WLs were obtained at 3 time points: pre-instrumentation (unflared), mid-instrumentation (flared) and post-instrumentation (concluded). Measurements were made via direct visualization (DV) and the CanalPro apex locator (EM) in triplicate by a …