期刊
BMC ORAL HEALTH
卷 21, 期 1, 页码 -出版社
BMC
DOI: 10.1186/s12903-021-01638-5
关键词
Passive ultrasonic irrigation; Photon-initiated photoacoustic streaming; Endodontic retreatment; iRoot SP; Micro-CT; Scanning electron microscopy
资金
- Guangdong Financial Fund for High-Caliber Hospital Construction [174-2018-XMZC-0001-03-0125/A-01, 174-2018-XMZC-0001-03-0125/D-08]
This study aimed to evaluate the efficacy of laser-activated and ultrasonic-activated techniques in vitro for the removal of tricalcium silicate-based sealer iRoot SP and gutta-percha after standard canal retreatment procedures using nickel-titanium (NiTi) rotary instruments. The combination of these techniques with NiTi re-instrumentation to remove residual filling materials has not been compared yet.
Background Tricalcium silicate-based sealers have been usually indicated for the single-cone technique and result in more residual filling materials in root canal retreatment. Passive ultrasonic irrigation and photon-initiated photoacoustic streaming have been reported to improve the removal efficacy of root canal filling materials. However, the abilities of both techniques combined with NiTi re-instrumentation to remove residual tricalcium silicate-based sealer and gutta-percha have not been compared. The aim of this study was to evaluate the efficacy of laser-activated and ultrasonic-activated techniques in vitro for the removal of the tricalcium silicate-based sealer iRoot SP and gutta-percha after standard canal retreatment procedures with the use of nickel-titanium (NiTi) rotary instruments.
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