ArticleEuropean oral research2026
Impact of manual and mechanical glide path preparation on surface defects of nickel-titanium rotary instruments.
Article in European oral research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Purpose: Nickel-titanium (NiTi) rotary instruments are widely used for root canal preparation (RCP) but remain prone to fracture partly due to surface defects. Glide path preparation (GPP) may reduce stress and fatigue, improving procedural safety. This study evaluated the effects of manual and mechanical GPP on surface defects compared with no GPP. Materials and Methods: Endodontic access cavities were prepared in sixty extracted mandibular molars. The teeth were randomly assigned to each of the following groups (n = 20). Group 1: GPP with a #13.02 rotary glide path file (C Path File, Fanta Dental, Guangdong, China), Group 2: GPP manually with a #10.02 stainless steel K-File (EndoArt K Files, İnci Dental, Türkiye), Group 3 (Control): No GPP. Mesibuccal canal of each tooth was shaped with an unused 10.04 NiTi rotary file (Smart Gold, İnci Dental, Türkiye) which was sterilized and imaged with scanning electron microscopy (SEM) before and after RCP. The images were compared in terms of flute disruption, microcracks, tip deformation, blade distortion, surface pitting, as well as fractures by using the Fisher-Freeman-Halton test and Pearson's Chi-square test, with the level of significance set at 5% (α = 0.05) for all analyses. Results: Tip deformation was the most frequent baseline defect, with no significant intergroup difference (p>0.05). After RCP, microcracks were more common in the no GPP group (p=0.031). Significant differences were observed in blade distortion (p<0.001), surface pitting (p=0.005), and fracture formation (p=0.002). Both manual and mechanical GPP significantly. Conclusion: Both manual and mechanical GPP significantly reduced surface defects on NiTi rotary instruments compared with no GPP. No significant difference was found between the manual and mechanical techniques.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.