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Fracture load of CAD/CAM-fabricated and 3D-printed composite crowns as a function of material thickness.
Clin Oral Investig. 2019 Jun; 23(6):2777-2784.CO

Abstract

OBJECTIVES

Indirect CAD/CAM restorations can be fabricated using both subtractive and additive CAD/CAM technology. This study investigated the fracture load of crowns fabricated from three particle-filled composite CAD/CAM materials and one 3D-printed composite material.

MATERIALS AND METHODS

Lava Ultimate, Cerasmart and Brilliant Crios were used as particle-filled composite CAD/CAM material and els-3D Harz as 3D-printed composite material. For each group, crowns with three different material thicknesses (0.5/1.0/1.5 mm) were fabricated. Control group was composed of ceramic-based CAD/CAM materials e.max CAD and Enamic. Totally, n = 180 crowns were fabricated and adhesively seated on SLA fabricated dies. Thermomechanical loading and fracture testing were performed. The data for fracture loading force were statistically analyzed by two-way ANOVA followed with multiple comparisons by post hoc Tukey's test (α = 0.05).

RESULTS

In contrast to ceramics, all particle-filled composite crowns with 0.5-mm thickness survived fatigue testing. Forces varied statistically significantly. Brilliant Crios showed highest maximum loading force with 1580.4 ± 521.0 N (1.5 mm). Two-way ANOVA indicated that both the material and the thickness affected the fracture load (p < 0.05).

CONCLUSIONS

Particle-filled composite resin CAD/CAM materials may have advantageous material characteristics compared to ceramic CAD/CAM materials for minimal restoration thicknesses.

CLINICAL RELEVANCE

Composite-based CAD/CAM materials may offer new possibilities in minimally invasive restorative treatment concepts.

Links

Publisher Full Text (DOI)

Authors+Show Affiliations

Zimmermann M
Division of Computerized Restorative Dentistry, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, 8032, Zurich, Switzerland. moritz.zimmermann@zzm.uzh.ch.
Ender A
Division of Computerized Restorative Dentistry, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, 8032, Zurich, Switzerland.
Egli G
Division of Computerized Restorative Dentistry, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, 8032, Zurich, Switzerland.
Özcan M
Dental Materials Unit, Clinic for Fixed and Removable Prosthodontics and Dental Materials, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, 8032, Zurich, Switzerland.
Mehl A
Division of Computerized Restorative Dentistry, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, 8032, Zurich, Switzerland.

MeSH

CeramicsComposite ResinsComputer-Aided DesignCrownsDental PorcelainDental Restoration FailureMaterials TestingPrinting, Three-DimensionalStress, Mechanical

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30368664

Clinical Trial Links

3 Years Clinical Evaluation of 3D Printed Resin Composite Fixed Dental Prosthesis

Citation

Zimmermann, Moritz, et al. "Fracture Load of CAD/CAM-fabricated and 3D-printed Composite Crowns as a Function of Material Thickness." Clinical Oral Investigations, vol. 23, no. 6, 2019, pp. 2777-2784.
Zimmermann M, Ender A, Egli G, et al. Fracture load of CAD/CAM-fabricated and 3D-printed composite crowns as a function of material thickness. Clin Oral Investig. 2019;23(6):2777-2784.
Zimmermann, M., Ender, A., Egli, G., Özcan, M., & Mehl, A. (2019). Fracture load of CAD/CAM-fabricated and 3D-printed composite crowns as a function of material thickness. Clinical Oral Investigations, 23(6), 2777-2784. https://doi.org/10.1007/s00784-018-2717-2
Zimmermann M, et al. Fracture Load of CAD/CAM-fabricated and 3D-printed Composite Crowns as a Function of Material Thickness. Clin Oral Investig. 2019;23(6):2777-2784. PubMed PMID: 30368664.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fracture load of CAD/CAM-fabricated and 3D-printed composite crowns as a function of material thickness. AU - Zimmermann,Moritz, AU - Ender,Andreas, AU - Egli,Gustav, AU - Özcan,Mutlu, AU - Mehl,Albert, Y1 - 2018/10/27/ PY - 2018/06/25/received PY - 2018/10/17/accepted PY - 2018/10/29/pubmed PY - 2020/1/4/medline PY - 2018/10/29/entrez KW - 3D printing KW - CAD/CAM KW - CEREC KW - Hybrid ceramic KW - Lithium disilicate ceramic KW - Particle-filled composite KW - Resin nano ceramic SP - 2777 EP - 2784 JF - Clinical oral investigations JO - Clin Oral Investig VL - 23 IS - 6 N2 - OBJECTIVES: Indirect CAD/CAM restorations can be fabricated using both subtractive and additive CAD/CAM technology. This study investigated the fracture load of crowns fabricated from three particle-filled composite CAD/CAM materials and one 3D-printed composite material. MATERIALS AND METHODS: Lava Ultimate, Cerasmart and Brilliant Crios were used as particle-filled composite CAD/CAM material and els-3D Harz as 3D-printed composite material. For each group, crowns with three different material thicknesses (0.5/1.0/1.5 mm) were fabricated. Control group was composed of ceramic-based CAD/CAM materials e.max CAD and Enamic. Totally, n = 180 crowns were fabricated and adhesively seated on SLA fabricated dies. Thermomechanical loading and fracture testing were performed. The data for fracture loading force were statistically analyzed by two-way ANOVA followed with multiple comparisons by post hoc Tukey's test (α = 0.05). RESULTS: In contrast to ceramics, all particle-filled composite crowns with 0.5-mm thickness survived fatigue testing. Forces varied statistically significantly. Brilliant Crios showed highest maximum loading force with 1580.4 ± 521.0 N (1.5 mm). Two-way ANOVA indicated that both the material and the thickness affected the fracture load (p < 0.05). CONCLUSIONS: Particle-filled composite resin CAD/CAM materials may have advantageous material characteristics compared to ceramic CAD/CAM materials for minimal restoration thicknesses. CLINICAL RELEVANCE: Composite-based CAD/CAM materials may offer new possibilities in minimally invasive restorative treatment concepts. SN - 1436-3771 UR - https://www.unboundmedicine.com/medline/citation/30368664/Fracture_load_of_CAD/CAM_fabricated_and_3D_printed_composite_crowns_as_a_function_of_material_thickness_ DB - PRIME DP - Unbound Medicine ER -