ArticleFrontiers in dental medicine2026
3D Evaluation of material-dependent volumetric and interfacial changes in CAD/CAM partial crowns: a semi-automated micro-CT approach.
Article in Frontiers in dental medicine, 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
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Objectives: Changes in the 3D volumes, interfaces, and interfacial gap formation were examined of adhesively luted lithium disilicate (LS2) and resin-based composite (RBC) partial crowns during artificial aging and imaged by micro-computed tomography (micro-CT). Methods: Sixteen human mandibular molars were restored using either 8 CAD/CAM partial crowns made of LS2 (IPS e.max® CAD) or RBC (Tetric® CAD). After adhesive luting (Variolink® Esthetic DC, adhesive luting composite), artificial aging [water storage for 90 days (t1) and thermo-mechanical loading (t2)], the partial crowns were analyzed by micro-CT (Avizo, Biomedisa). Paired Results: Across artificial aging, most area parameters and all four volume parameters remained stable in both materials. Yet, there were changing values in areas of direct contact between the partial crown material and the tooth tissues: CPE, CPT were generally smaller at t1 for LS2 (2.2 ± 1.2%) compared to RBC (4.5 ± 1.3%), especially at the inflection and saddle points of the round preparation form. Across both time points, LS2 showed consistently higher mean luting space thickness than RBC. It remained without gap progression. Conclusions: The semi-automated 3D micro-CT analysis enables a comprehensive evaluation of adhesive interfaces and may help to develop new ideas to enhance long-term restoration outcomes. RBC partial crowns had more surfaces in direct contact with the cavity floor than LS2 partial crowns. Clinical significance: The approach with Biomedisa has potential translational value and may enable individualized quality control and long-term monitoring of adhesive restorations in clinical practice. Both materials achieve comparable survival rates, wear resistance, and interface stability under simulated conditions and when minimum material thickness is respected.
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.