What question did this study set out to answer?

To evaluate the clinical and radiographic outcomes of rotary nickel-titanium files with ultrasonic irrigation compared to manual K-files with syringe irrigation in primary molar pulpectomy.

May 14, 2026Clinical Oral Investigations0 citationsOpen Access

Comparison of Rotary Nickel-Titanium Files with Ultrasonic Irrigation vs Manual K-Files in Molars

Comparison of rotary NiTi files with ultrasonic irrigation and manual K-files with syringe irrigation in primary molar pulpectomy: A retrospective cohort study

View Full Paper

Ask AI

Bookmark

Authors

JLJing Liu KYKaixuan Yan YZYu Zheng

Discussion

Member takes

Overview

Retrospective cohort study evaluates outcomes of NiTi files versus manual K-files in primary molar pulpectomy, suggesting improved efficacy and comfort.

Key Points

To evaluate the clinical and radiographic outcomes of rotary nickel-titanium files with ultrasonic irrigation compared to manual K-files with syringe irrigation in primary molar pulpectomy.
Retrospective cohort study with patients aged 4-9 years undergoing RCT for mandibular primary molars.
Participants categorized into three groups: M3 rotary with ultrasonic irrigation (n=98), S3 rotary with ultrasonic irrigation (n=84), and manual K-files with syringe irrigation (n=78).
Postoperative pain assessed at 24, 48, and 72 hours using Wong-Baker FACES scale, with radiographic evaluation at 12-month follow-up.
M3 rotary group demonstrated the shortest instrumentation time (210.45 ± 6.85 s) and the highest optimal obturation rate (87.1%), significantly outperforming others (P<0.05).
Both rotary systems resulted in significantly lower pain scores at 24 and 48 hours compared to manual instrumentation (P<0.01).
No significant differences in pain at 72 hours or 12-month therapeutic success rates across groups (P>0.05).

Cite This Study

Liu et al. (2026) studied this question.

synapsesocial.com/papers/6a05659da550a87e60a1deba https://doi.org/10.1007/s00784-026-06908-6

View Full Paper

Ask AI

Bookmark

May 14, 2026Clinical Oral Investigations0 citationsOpen Access

Comparison of Rotary Nickel-Titanium Files with Ultrasonic Irrigation vs Manual K-Files in Molars

Comparison of rotary NiTi files with ultrasonic irrigation and manual K-files with syringe irrigation in primary molar pulpectomy: A retrospective cohort study

View Full Paper

Ask AI

Bookmark

Authors

JLJing Liu KYKaixuan Yan YZYu Zheng

Discussion

Member takes

Overview

Retrospective cohort study evaluates outcomes of NiTi files versus manual K-files in primary molar pulpectomy, suggesting improved efficacy and comfort.

Key Points

To evaluate the clinical and radiographic outcomes of rotary nickel-titanium files with ultrasonic irrigation compared to manual K-files with syringe irrigation in primary molar pulpectomy.
Retrospective cohort study with patients aged 4-9 years undergoing RCT for mandibular primary molars.
Participants categorized into three groups: M3 rotary with ultrasonic irrigation (n=98), S3 rotary with ultrasonic irrigation (n=84), and manual K-files with syringe irrigation (n=78).
Postoperative pain assessed at 24, 48, and 72 hours using Wong-Baker FACES scale, with radiographic evaluation at 12-month follow-up.
M3 rotary group demonstrated the shortest instrumentation time (210.45 ± 6.85 s) and the highest optimal obturation rate (87.1%), significantly outperforming others (P<0.05).
Both rotary systems resulted in significantly lower pain scores at 24 and 48 hours compared to manual instrumentation (P<0.01).
No significant differences in pain at 72 hours or 12-month therapeutic success rates across groups (P>0.05).

Cite This Study

Liu et al. (2026) studied this question.

synapsesocial.com/papers/6a05659da550a87e60a1deba https://doi.org/10.1007/s00784-026-06908-6

View Full Paper

Ask AI

Bookmark