ArticleInternational dental journal2026
Lesion Morphology Modification Is Unnecessary for Non-carious Cervical Lesion Restorations: A Comparison of Stiff and Flowable Composites.
Article in International dental journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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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
2 citing papers in PubMed.
- Muscle Tone Regulation and Bruxism in Chronic Stress: Pathophysiological Links to Tooth Fractures and Dental Hard Tissue Pathology.Medical sciences (Basel, Switzerland) · 2026Review
- Clinical Management of Cervical Restorations with Closing Gap Technique: A Follow-Up of Two Cases.Dentistry journal · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study investigates the impact of non-carious cervical lesion (NCCL) morphology - horizontal-oval-round (HOR) and horizontal-oval-wedge (HOW) - and 2 different restoratives - stiff composite (Filtek-Z350XT, Z) vs flowable composite (Filtek-Bulk-Fill Flowable, F) - on fracture risk and stress distribution in human teeth. Forty-five extracted sound maxillary first premolars were allocated into 3 groups (n = 15): sound (S), nonrestored HOR (R), and nonrestored HOW (W). Standardized NCCLs were prepared, and fracture strength was measured using a universal testing machine. One-way ANOVA and posthoc tests (P < .05) were used for statistical analysis. Validated 3D-FEA models were used to simulate von Mises stress under an average occlusal load (54.64 N) across 7 models: S, R, W, and restored counterparts using Z and F composites (RZ, RF, WZ, WF). Fracture strength was significantly lower in R (509.2 MPa) and W (520.6 MPa) compared with sound teeth (821.7 MPa; P < .001), with no difference between R and W (P > .05). In nonrestored NCCLs, stress concentrated at the lesion base (13-15 MPa), threefold greater than that in sound teeth. Restoration redistributed stress to 3 to 5 MPa, relocating peak stress to the palatal furcation. Bulk-fill flowable composite reduced interfacial stress (2.3-2.8 MPa) though slightly increased lesion-base stress, while stiff composite showed the inverse (3.0-3.5 MPa). NCCLs compromise tooth strength irrespective of morphology. Restoration improves stress distribution to near-physiological levels without lesion morphology modification. Clinically, this supports conservative restoration, with flowable composites offering biomechanical advantages, though their long-term wear resistance requires further validation.
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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.