Comparison of Two Methods of Void Correction Following Warm Vertical Root Canal Obturation
Abstract
During warm vertical endodontic obturation, voids are occasionally observed between the downpack-backfill junctions, potentially reducing the canal seal. This study compared two methods of correcting obturation voidsre-accomplishment of continuous-wave warm vertical condensation (WVC) procedure versus using a Microseal Condenser (MC) device. Methods: Thirty-two maxillary central incisors were obturated with intentional creation of obturation voids. The voids were subsequently eliminated by either repeating traditional downpack and backfill, or using a Microseal Condenser device. The percentage of void reduction was calculated using straight-on and proximal-view digital radiographs. Time required for each technique was recorded. Data was analyzed using Student t-test and Pearson Correlation. Representative teeth from both groups were then sectioned and examined under light microscopy. Results: No significant difference in the percentage of void reduction was observed in either the straight-on view (90.5 for WVC;86.3 for MC) or the proximal view (84.7 for WVC; 81.5 for MC). A very strong correlation (r=0.85) existed for measuring the size of voids between the straight-on and proximal views. A significant difference in procedure times was observed (99 seconds for WVC; 47 seconds for MC). Visual inspection of selected root sections demonstrated satisfactory obturation quality in both WVC and MC groups, however complications such as instrument separation or gouging of canal walls were observed in some sections of the MC group. Conclusions: The MC device achieved a similar level of obturation quality, in significantly less time, for correcting obturation voids compared to the WVC technique, however may be associated with more complications.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 24, 2018
- Accession Number
- AD1128413
Entities
People
- George D. Hwang
- Jared W. Cardon
- Kent A. Sabey
- Steven W. Black
- Timothy C. Kirkpatrick
- Van T. Himel
Organizations
- Uniformed Services University of the Health Sciences