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Tytuł pozycji:

The influence of printing angle on color and translucency of 3D printed resins for dental restorations.

Tytuł:
The influence of printing angle on color and translucency of 3D printed resins for dental restorations.
Autorzy:
Espinar C; Department of Stomatology, Faculty of Dentistry, Colegio Máximo, University of Granada, Campus de Cartuja s/n, 18071 Granada, Spain.
Bona AD; Post-Graduate Program in Dentistry, Dental School, University of Passo Fundo, Campus I, Passo Fundo, RS, Brazil.
Pérez MM; Department of Optics, Faculty of Science, Campus Fuentenueva, University of Granada, Edificio Mecenas, s/n, 18071 Granada, Spain. Electronic address: .
Tejada-Casado M; Department of Optics, Faculty of Science, Campus Fuentenueva, University of Granada, Edificio Mecenas, s/n, 18071 Granada, Spain.
Pulgar R; Department of Stomatology, Faculty of Dentistry, Colegio Máximo, University of Granada, Campus de Cartuja s/n, 18071 Granada, Spain.
Źródło:
Dental materials : official publication of the Academy of Dental Materials [Dent Mater] 2023 Apr; Vol. 39 (4), pp. 410-417. Date of Electronic Publication: 2023 Mar 11.
Typ publikacji:
Evaluation Study; Journal Article; Research Support, Non-U.S. Gov't
Język:
English
Imprint Name(s):
Publication: 1998- : Kidlington, Oxford, UK : Elsevier Science
Original Publication: Copenhagen : Munksgaard, c1985-
MeSH Terms:
Dental Porcelain*
Printing, Three-Dimensional*
Crowns*
Composite Resins ; Materials Testing ; Color
Contributed Indexing:
Keywords: 3D printing resin; Additive manufacturing; CIEDE2000 metric; Color; Printing angle; Provisional restoration; Translucency parameter
Substance Nomenclature:
12001-21-7 (Dental Porcelain)
0 (Composite Resins)
Entry Date(s):
Date Created: 20230313 Date Completed: 20230410 Latest Revision: 20230410
Update Code:
20240104
DOI:
10.1016/j.dental.2023.03.011
PMID:
36914433
Czasopismo naukowe
Objectives: To evaluate the influence of printing orientation on color and translucency of 3D printing restorative resins.
Methods: Four 3D printing resin systems in the available shades (DFT-Detax Freeprint Temp- A1, A2,A3; FP-Formlabs Permanent Crown- A2,A3,B1,C2; FT- Formlabs Temporary CB- A2,A3,B1,C2; GCT-GC Temporary- Light, Medium) were evaluated. Three samples (10×10×1.2 mm) from each material were printed at two different printing orientations (0° and 90°) and polished to 1.00 ± 0,01 mm of thickness. Spectral reflectance was measured against black background using a calibrated spectroradiometer, CIE D65 standard illuminant and the 45°/0°geometry. Color and translucency differences were evaluated using CIEDE2000 metric (ΔE 00 ) and 50:50% perceptibility (PT 00 and TPT 00 ) and acceptability (AT 00 and TAT 00 ) thresholds.
Results: In general, color changes due to printing orientation at (0° and 90°) were mainly produced by ΔL* or ΔC* . ΔE 00 were above PT 00 for all DFT shades, FP-B1, FP-C2, FT-A2 and FT-B1. Only for DFT-1, ΔE 00 was above AT 00 . ΔRTP 00 values were above TPT 00 for DFT-A1, DFT-A3, FP-B1 and FT-B1, but lower than TAT 00 . The direction of the changes in translucency (ΔRTP 00 ) depends on the material and shade.
Significance: The selection of building orientation (0° and 90°) for the 3D printed resins influence the visual color and translucency and therefore their esthetic appearance. These aspects should be considered when printing dental restorations using the evaluated materials.
(Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.)

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