XP-endo instruments may help in removal of the aged filling materials, Finds study
Although the combined use of XPS and XPFR instruments helped remove the bulk of aged root filling material from mandibular molars, material removal from canals filled using warm vertical condensation in the critical apical area remains a concern, reports a study published in the Journal of Dentistry.
He Liu and associates from the Department of Stomatology, Affiliated Hospital of Jining Medical University, China carried out a study to investigate the effectiveness of XP-endo Shaper (XPS) and XP-endo Finisher R (XPFR) instruments in removing aged root filling material from root-treated mandibular molars.
Thirty mandibular molars were instrumented and divided into three groups-
- single-cone obturation using AH Plus sealer (AHS) or
- EndoSequence BC sealer (BCS), and
- warm vertical compaction using AH Plus sealer (AHW).
The specimens were stored at 100% humidity and 37 °C for 54 months. Retreatment was performed using XPS and XPFR. Micro-computed tomography was used to scan the specimens after 54 months, after XPS retreatment and after the supplementary approach using XPFR.
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