Document Type

Article

Publication Date

Spring 3-1-2025

Abstract

Aim: The purpose of this study was to investigate in-vitro the retreatability of premixed calcium-silicate-based sealer versus resinbased

sealer when combined with gutta-percha using the single-file system XP-endo Rise.

Materials and methods: 26 canals in typodont acrylic Nissin teeth were instrumented with E-flex blue rotary instruments up to

size 0.35mm and taper of 4%. Root canals were divided into two groups, obturated using either hydraulic condensation technique

with a bioceramic sealer (n=13) or continuous wave of compaction (CWC) technique with a resin-based sealer (n=13). The

retreatment procedure was done for both groups using the XP-endo Rise instruments. The time required to complete the

retreatment procedures was recorded in seconds. Cone beam computed tomography (CBCT) was used to assess the obturation

material left after retreatment. Retreatment time results were analyzed statistically using an independent t-test, and number of

canals with total filling material removal were compared between groups using Fisher’s exact test, with a significance level (α) set

to 0.05.

Results: Patency was achieved in all samples. The retreatment time was longer for canals filled with the bioceramic-based sealer

compared with the resin-based sealer (p < 0.05). However, the total number of canals with filling remnants were significantly more

in the resin-based sealer group compared to the bioceramic-based sealer group, (p < 0.05).

Conclusion: The bioceramic sealer used with the hydraulic condensation technique was effectively retreated, leaving no residual

material, even though the retreatment time demonstrated a noticeably longer duration compared to the resin-sealer used with the

CWC technique.

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