Table 11.
Flexural strength (FS) results.
| Author and Year | Mean/Median of Maximum Force at Fracture for Conventional Resin | Mean/Median of Maximum Force at Fracture for CAD/CAM Milled Resin | Mean/Median of Maximum for 3D-Printed Resin | Exposure Agent/Aging Technique | Testing Machine Used | Authors Suggestions/Conclusions |
|---|---|---|---|---|---|---|
| Park et al., 2020 [43] | Medians and IQRs of FS: (A) Jet Tooth ShadeTM Powder: 543 N [IQR: 429–701] |
Medians and IQRs of FS: (B) ViPi: 1232 N [IQR: 1193–1258] |
Medians and IQRs of FS: (C) NextDent C&B: 1189 N [IQR: 1110–1283] (D) Standard (GPGR04): 1323 N [IQR: 1245–1377] (E) PLA: Data N/A |
N/M | Universal testing machine | FS: 3D-printed PPMA ((D) > CAD/CAM milled PMMA > 3D-Printed PMMA ((C) > conventional PMMA The (FDM) group 3D-printed Polylactic-acid-based restoration did not fracture but was dented |
| Crenn et al., 2022 [29] | Mean FS: (A) Integrity: 115.4 ± 20.5 MPa (B) Unifast: 85.79 ± 6.00 MPa |
N/A | Mean FS: (C) PLA: 115.8 ± 2.11 MPa (D) Temporary CB: 134.9 ± 17.51 MPa |
N/M | Universal testing machine | FS: 3D-Printed SLA Polymer > 3D-Printed PLA ≥ Conventional Bis-acrylic > conventional MMA |
| Tas¸ın et al., 2022 [30] | Median in MPa (A) Temdent Classic Thermocycling: (i) 0 cycles: 68 (ii) 2500 cycles: 62 (iii) 10,000 cycles: 49 (B) Protemp: Thermocycling: (i) 0 cycles: 113 (ii) 2500 cycles: 108 (iii) 10,000 cycles: 99 |
Median in MPa (C) Duo Cad: Thermocycling: (i) 0 cycles: 127 (ii) 2500 cycles: 122 (iii) 10,000 cycles: 117 |
Median in MPa (D) Temporis: Thermocycling: (i) 0 cycles: 125 (ii) 2500 cycles: 125 (iii) 10,000 cycles:116 |
Thermocycling control (0 cycles), 2500 cycles, and 10,000 cycles |
Universal testing machine | FS at all thermocycling periods: CAD/CAM milled PMMA ≈ 3D-Printed composite > conventional bis-acrylic > conventional MMA Thermocycling periods influence the flexural strength of each tested group |
| Digholkar et al., 2016 [36] |
Mean FS: (A) Heat-activated PMMA: 95.58 ± 12.444 MPa |
Mean FS: (B) Ceramill TEMP: 104.20 ±12.777 MPa |
Mean FS: (C) E-Dent 100: 79.54 ± 10.130 MPa |
N/M | Universal testing machine | FS: CAD/CAM-milled PMMA > Conventional heat activated PMMA > 3D-printed Microhybrid filled composite |
| Simoneti et al., 2022 [53] | Mean FS in MPa: (A) Dencor (PMMA): 69.2 ± 8.8 (B) Yprov Bis-acryl (Bis-acryl resin): 75.0 ± 8.2 |
N/A | Mean FS in MPa: (C) PA2201 (SLS resin): 77.3 ± 3.1 (D) Gray Resin (SLA resin): 48.9 ± 1.2 |
Mechanical fatigue simulation: 120,000 cycles performed to simulate 6 months of clinical use |
Universal testing machine | FS: 3D-Printed SLS > conventional Bis-acrylic > conventional PMMA > 3D-Printed SLA resin |
| Pantea et al., 2022 [31] | Mean FS in MPa: (A) Duracyl: 88 ±10 (B) Superpont C+B: 76 ± 7 |
N/A | Mean FS in MPa: (C) NextDent C&B MFH: 141 ± 17 (D) HARZ Labs Dental Sand: 143 ± 15 |
N/M | Universal testing machine | Flexural strength: 3D-Printed PMMA > conventional PMMA |
IQR: Interquartile range; N/A: Not Applicable; N/M: Not Mentioned.