Metkari Sachin, Sachdev Sanpreet S, Patil Pravin, Ramugade Manoj, Sapkale Kishor D, Banga Kulvinder S, Rao Dinesh
Conservative Dentistry and Endodontics, Nair Hospital Dental College, Mumbai, IND.
Oral Pathology and Microbiology, Bharati Vidyapeeth (Deemed to be University) Dental College and Hospital, Navi Mumbai, IND.
Cureus. 2025 Jan 25;17(1):e77975. doi: 10.7759/cureus.77975. eCollection 2025 Jan.
Background The present study aimed to assess the efficacy of a heat-treated, FlexiCON nickel-titanium (Ni-Ti) rotary instrumentation system and compare it with existing commonly used instrumentation systems (hand file, ProTaper Universal, and WaveOne) using the EndoVac irrigation system. Methodology A total of 210 single-rooted, human permanent anterior teeth were equally divided into four groups of 50 teeth each (Group I for step-back, group II for ProTaper rotary, Group III for WaveOne reciprocating, and Group IV for FlexiCON rotary instrumentation system), and 10 teeth were used as controls. Canals were irrigated with EndoVac irrigation in each group. Extruded debris, irrigating solution, and were quantified and statistically analyzed. Results Group IV exhibited the least amount of debris, irrigating solution, and microorganisms than other groups, while Group I presented the most. FlexiCON with EndoVac irrigation demonstrated the least amount of microbe extrusion (14 colony-forming units (CFUs)) among the four instrumentation systems, whereas step-back instrumentation with EndoVac irrigation demonstrated the most (39 CFUs). The control group showed no debris, irrigating solution, or microorganisms. Conclusions FlexiCON Ni-Ti rotary instrumentation showed the least debris, irrigating solution, and bacterial extrusion compared with hand, ProTaper Universal, and WaveOne reciprocating instrumentation systems when EndoVac irrigation methods were used.
背景 本研究旨在评估一种经过热处理的FlexiCON镍钛（Ni-Ti）旋转器械系统的疗效，并使用EndoVac冲洗系统将其与现有的常用器械系统（手动锉、ProTaper Universal和WaveOne）进行比较。方法 总共210颗单根人类恒牙被平均分为四组，每组50颗牙（第一组为逐步后退法，第二组为ProTaper旋转法，第三组为WaveOne往复法，第四组为FlexiCON旋转器械系统），另有10颗牙作为对照。每组均使用EndoVac冲洗法冲洗根管。对挤出的碎屑、冲洗液和微生物进行定量并进行统计分析。结果 第四组的碎屑、冲洗液和微生物量比其他组最少，而第一组最多。在四种器械系统中，使用EndoVac冲洗的FlexiCON微生物挤出量最少（14个菌落形成单位（CFU）），而使用EndoVac冲洗的逐步后退法器械微生物挤出量最多（39 CFU）。对照组未发现碎屑、冲洗液或微生物。结论 当使用EndoVac冲洗方法时，与手动、ProTaper Universal和WaveOne往复器械系统相比，FlexiCON Ni-Ti旋转器械的碎屑、冲洗液和细菌挤出量最少。
