ArticleBMC oral health2025
Effect of cavity depth on degree of conversion and microhardness of low-shrinkage resin composites.
Article in BMC oral health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 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
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Who cites it
4 citing papers in PubMed.
- Effects of sustainable bamboo-derived cellulose nanocrystals on the mechanical performance and antibacterial potential of dental resin composites.Discover nano · 2026Article
- Stain susceptibility of a giomer and a particulate-filled injectable composite with one-step and multi-step polishing techniques, and color recovery after brushing and repolishing.BMC oral health · 2026Article
- Optimizing Dental Resin-Based Composite Polymerization with Distance and Exposure Variables: Preliminary Study.Materials (Basel, Switzerland) · 2026Article
- Evaluation of the Effect of Different Light-Curing Protocols on the Microhardness of Contemporary Bulk-Fill Resin Composites.Polymers · 2025Article
Corrections and comments
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Authors and funding
2 authors.
Funding
Abstract
backgroundThe study aimed to investigate the effect of different cavity depths on the degree of conversion (DC) and surface microhardness (MH) of low-shrinkage resin composites.
methodsThree low-shrinkage resin composites (Clearfil Majestry Posterior/CMP, Beautifil II LS/BL, Charisma Diamond/CD) and one conventional nanohybrid resin composite (Filtek Z550/FZ) as control were evaluated. For each composite material, a total of 12 disc-shaped samples were prepared using plastic molds with two different depths (2 mm and 4 mm) (n = 6). The same sample preparation protocol was applied for the DC and MH tests, and a total of 96 samples were prepared, 48 for each test. Resin composites filled into molds with the incremental technique were cured with LED light unit only from the top surface. DC was determined by Fourier transform infrared (FTIR) spectroscopy; MH was determined using the Vickers hardness tester. Data were statistically analyzed using Robust and two-way variance analyses (p < 0.05).
resultsFor all resin composites, there was no significantly difference in DC and MH between the 2 mm and 4 mm cavity depths. BL showed the highest DC values at both cavity depths, while CD showed the lowest (p < 0.001). At both cavity depths, the highest MH values on bottom-top surfaces were obtained in CMP, while the lowest were in BL. The top surface MH values were higher in all resin composites than the bottom surfaces.
conclusionsIncreasing cavity depth may not negatively affect the DC and MH of low-shrinkage resin composites. Moreover, resin composite material formulations may have a higher potential effect on these parameters. CLINICAL TRIAL NUMBER: Not applicable.
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