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Purpose: This study aimed to evaluate the trueness of models fabricated by a digital light processing (DLP) three-dimensional (3D) printer using two different types of resins. Methods: A typodont model with a Class II cavity on the mandibular right first molar was scanned using a dental model scanner. The data were digitally edited using computer-aided design (CAD) software and saved as standard tessellation language reference files. Specimens were printed using two resins, DTM (DentaMODEL, Asiga) and MXE (Model XE, Rayshape), with a DLP 3D printer at a 75-μm layer thickness. A total of 20 specimens were scanned and analyzed using 3D inspection software. Trueness was evaluated via best-fit alignment and measured as the root mean square (RMS) value. Color deviation maps were employed for qualitative assessment. Statistical analysis was performed using an independent t-test (p<0.05). Results: For the internal surface, the RMS value of the DTM group was 19.30±4.52 μm, whereas that of the MXE group was 17.07±1.43 μm. For the margin, the DTM group showed an RMS value of 22.86±3.26 μm, whereas the MXE group showed 18.73±1.67 μm. No statistically significant difference was observed between the groups for the internal surface (p=0.155); however, the MXE group demonstrated significantly higher trueness in the marginal area (p=0.002). Conclusion: Both the DTM and MXE resins demonstrated high dimensional accuracy with clinically acceptable trueness, supporting the applicability of economical resins in dental 3D printing.