ArticleBMC oral health2026
Fracture resistance of ceramic vonlays fabricated from different CAD/CAM materials restoring premolars after cyclic loading (an in vitro study).
Article in BMC oral health, 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
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionThe advancement of indirect ceramic restorations helps to establish new boundaries between conservative practices and prosthetics, thus Vonlay restorations were introduced to achieve the desired results in cases that involve the occlusal surface and extends to entire buccal surface due to either esthetic or functional considerations. AIM OF THE STUDY: This in vitro study evaluated the fracture resistance and failure modes of ceramic vonlay restorations fabricated from four CAD/CAM materials: lithium disilicate, zirconia-reinforced lithium silicate, super high-translucent zirconia, and polymer-infiltrated ceramic after cyclic loading. MATERIALS AND
methodsFifty-six extracted human maxillary premolars were prepared and restored with vonlays from lithium disilicate glass ceramics (control group), zirconia-reinforced lithium silicate (ZLS), ultra-translucent monolithic zirconia, and polymer-infiltrated ceramic networks (PICNs) (n = 14/group). Restorations were milled, finished, and adhesively luted with dual-cure resin cement. All specimens underwent 500,000 cycles of mechanical loading (100 N, 1 Hz) before static fracture testing. Failure modes were assessed microscopically. Data were analyzed using one-way ANOVA, Tukey's post hoc, and Chi-square/Fisher's exact tests (α = 0.05).
resultsUltra-translucent monolithic zirconia showed the highest fracture resistance, followed by lithium disilicate glass ceramics and zirconia-reinforced lithium silicate (ZLS) while polymer-infiltrated ceramic networks (PICNs) showed the lowest values (p < 0.001). Failure patterns differed significantly among groups (p = 0.005), with polymer-infiltrated ceramic networks (PICNs) having more restorable failures.
conclusionCeramic material significantly influences the mechanical performance of vonlay restorations. High-strength ceramics, such as lithium disilicate glass ceramics, ultra-translucent monolithic zirconia, offer superior resistance and clinical predictability in premolars under cyclic loading.
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.