ArticleClinical oral investigations2026
In vitro evaluation of dentin surface alterations induced by a helical ultrasonic scaler tip using coherence correlation interferometry.
Article in Clinical oral investigations, 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
objectivesTo evaluate the effects of a novel helical ultrasonic scaler tip (HUST) on dentin surface roughness and compare its performance with a non-helical ultrasonic scaler tip (NHUST) and a conventional hand scaler (Gracey curette, GC). The HUST was designed to improve calculus removal efficiency while minimizing dentin surface damage. MATERIALS AND
methodsThis in vitro experimental study used standardized dentin blocks prepared from extracted human teeth to evaluate the effects of three instruments (HUST, NHUST, and GC). Surface roughness was quantified by measuring the total height of the profile (Pt) using a non-contact surface profilometer based on coherence correlation interferometry. Tip wear was assessed qualitatively using scanning electron microscopy. The sample size was determined based on preliminary experimental observations. Statistical analyses included the Shapiro–Wilk test for normality, followed by the Kruskal–Wallis test and Steel–Dwass post hoc comparisons.
resultsNo visible wear was observed on either ultrasonic tip, even after 400 applications. Pt was significantly higher in the NHUST group (18.80 ± 6.21 μm) than in the HUST (10.26 ± 4.31 μm) and GC (6.05 ± 3.78 μm) groups (p < 0.01). No significant difference was observed between the HUST and GC groups. All experimental groups showed greater roughness than the polished control (3.29 ± 1.14 μm), but the HUST group exhibited significantly lower surface alteration than the NHUST group.
conclusionsThe HUST resulted in lower dentin surface roughness than the NHUST. CLINICAL RELEVANCE: The HUST may contribute to safer ultrasonic instrumentation with reduced dentin surface alterations.
Indexed as
Identifiers
42053841What 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.