ArticleBMC oral health2024
Fracture strength and marginal and internal adaptation of lithium disilicate and hybrid ceramic endocrowns and non-retentive overlays for endodontically treated molar teeth.
Article in BMC oral health, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 2 of them syntheses that pooled it.
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Who cites it
8 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Marginal Gap of Pre-Cemented Endocrowns: A Systematic Review of Measurement Methods and the Influence of Fabrication Method and Crown Material.Clinical and experimental dental research · 2025Pooled it
- Clinical performance of minimally invasive full-mouth rehabilitation using different materials and techniques for patients with moderate to severe tooth wear: a systematic review and meta-analysis.Clinical oral investigations · 2025Pooled it
- Biomechanical and weibull-based evaluation of bioceramic root filling and coronal restoration designs in apically resorbed premolars.Clinical oral investigations · 2026Article
- Mechanical behavior of endodontically treated molars restored using two restorative approaches and two CAD/CAM materials: an in-vitro study.BMC oral health · 2026Article
- Three-dimensional-printed endocrowns: Does increasing intracoronal depth improve strength at the expense of fracture severity?Journal of conservative dentistry and endodontics · 2026Article
- Fracture resistance of posterior teeth restored by lithium silicate-based and hybrid ceramic partial coverage restorations with different preparation designs: a scoping review.BMC oral health · 2026Article
- Influence of Cusp Coverage Design and Hybrid Resin-Ceramic Materials on the Biomechanical Performance of Partial Coverage Restorations.Journal of functional biomaterials · 2025Article
- Influences of different fiber-reinforced biobases on the fracture strength and failure mode of lithium disilicate overlay restorations (a comparativeJournal of clinical and experimental dentistry · 2025Article
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Authors and funding
4 authors.
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Abstract
backgroundWith the advances in the adhesive science, several conservative treatment options such as non-retentive overlays have been suggested for endodontically treated posterior teeth. However, information is scarce regarding the fracture strength and adaptation of non-retentive overlays compared with endocrowns, and the effect of material type in this respect. Thus, this study aimed to assess the fracture strength and internal and marginal adaptation of lithium disilicate (LDS) and hybrid ceramic endocrowns and non-retentive overlays for endodontically treated molar teeth.
methodsThis in vitro study was conducted on 40 endodontically treated molar teeth that were randomly assigned to 4 groups based on the restoration type and material type (n = 10): LDS and hybrid ceramic endocrowns, and LDS and hybrid ceramic non-retentive overlays. The internal and marginal adaptation of restorations were assessed by the silicone replica technique. After cementation and thermomechanical loading, the fracture strength was measured, and the failure mode was determined. Data were analyzed by two-way ANOVA with pairwise comparisons with the Tukey's test, and Fisher's exact test (α = 0.05).
resultsThe highest mean marginal and internal gaps were recorded in hybrid ceramic endocrowns, followed by LDS endocrowns, hybrid ceramic overlays, and LDS overlays. All pairwise comparisons revealed significant differences (P < 0.001) except the two endocrown groups, which were not significantly different regarding internal gap (P = 0.998). The mean fracture strength was the lowest in hybrid ceramic endocrowns, followed by hybrid ceramic overlays, LDS endocrowns, and LDS overlays. All pairwise comparisons revealed significant differences (P < 0.05) expect the two hybrid ceramic groups (P = 0.180). No significant difference was found in the failure mode among the groups (P = 0.312).
conclusionsType of restoration and material significantly influenced both adaptation and fracture strength. Specifically, LDS overlays on endodontically treated molar teeth yielded the highest fracture strength and superior internal and marginal adaptation in comparison with other material.
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