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Material composition of 3D printing materials used in this study provided by the manufacturers.
| Manufacturer | Product | Shade | Composition | Batch Number |
|---|---|---|---|---|
| Graphy (GP) | TC-80DP | A1 | Methacrylate oligomer based on polyurethane resin, phosphine oxides, pigment | 1-B1220K11-003 |
| NextDent (NXT) | C&B MFH | N1 | >90% methacrylic oligomers, methacrylate monomer, <3% phosphine oxides, pigment |
WX151N01 |
