Color dimensions of additive manufactured interim restorative dental material

Revilla‐León, Marta; Umorin, Mikhail; Özcan, Mutlu; Piedra‐Cascón, Wenceslao

doi:10.1016/j.prosdent.2019.06.001

Cited by 50 publications

(47 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Therefore, the null hypotheses of no differences in the color and translucency among the 3D printable dental materials used in this study and of no differences among storage periods were both rejected. Although a few studies have measured the color of 3D printable dental materials [20,21], there was no attempt to evaluate the translucency or their stability for an extended period. In this regard, the results of this study could be expected to provide relevant information for the use of 3D printable dental materials for crown and bridge restorations in dental laboratories and clinics.…”

Section: Discussionmentioning

confidence: 99%

“…While there have been several studies of the color and translucency of dental resinbased composites (RBCs) for direct restoration as well as indirect dental ceramic materials [15][16][17][18][19], only limited information is available about those of 3D printable dental materials. Revilla-León et al measured the color of 3D printable dental materials and compared them with those of conventional acrylic resin-based interim materials [20]. They included five different 3D printable materials in the study; however, they did not evaluate the translucency or the color stability of the materials.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Color and Translucency Stability of Three-Dimensional Printable Dental Materials for Crown and Bridge Restorations

et al. 2021

View full text Add to dashboard Cite

The purpose of this study was to examine and compare color and translucency stability of three-dimensional (3D) printable dental materials for crown and bridge restorations. Five different materials were investigated, and twelve disc-shaped specimens of two different thicknesses (1 and 2 mm) were prepared using a digital light processing 3D printer. Color measurements were made according to the CIELAB color scale (L*, a*, and b*) using a spectrophotometer 1 h, 1 day, 1 week, one month, and six months after post-curing of the materials, and the translucency parameter (TP) was calculated. The L*, a*, b*, and TP values were compared among the different materials and storage periods using repeated measures analysis of variance. Color and translucency changes of the specimens after the different storage periods were compared with 1 h measurements to determine whether they exceeded clinically perceivable thresholds. The L*, a*, b*, and TP values showed significant differences according to the storage periods, as well as among the materials. Until one month, some materials demonstrated distinct color differences, while others showed small color differences below a clinically perceivable threshold. The translucency differences were not clinically perceivable for any specimen. After six months, all specimens demonstrated large color changes, whereas the changes in translucency were relatively small. In conclusion, the color of 3D printable dental materials changed with time, and the differences varied with the materials used. On the contrary, the changes in translucency were small. Overall, the materials became darker, more yellowish, and more opaque after six months of water storage.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Color and Translucency Stability of Three-Dimensional Printable Dental Materials for Crown and Bridge Restorations

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Meter Digital Illuminance, StellarNet Inc.; Florida, United States). 19 The spectrophotometer probe tip was positioned perpendicular to the center of the specimens until the completion of measurement. The color coordinates (CIE L*, a*, b*, C*, and h o ) were then recorded.…”

Section: Color Stabilitymentioning

confidence: 99%

Effects of Different Amine Activators on the Monomer Conversion, Biaxial Flexural Strength, and Color Stability of Experimental Provisional Dental Restorations

et al. 2021

View full text Add to dashboard Cite

Objective The aim was to assess the effect of different amine activators including N, N-dimethyl-p-toluidine (DMPT) or Na-N-tolyglycine glycidyl methacrylate (NTGGMA) on chemical-activated monomer conversion, biaxial flexural strength (BFS), and color stability of composites for provisional dental restorations. Materials and Methods Two formulations of composites containing either DMPT (D-temp) or NTGGMA (N-temp) were prepared. The degree of monomer conversion was assessed. The BFS of the materials was tested using the ball-on-ring testing jig. The color difference (∆E00) of the materials after immersion in water was also determined. The commercial comparisons were Unifast (UF), Protemp (PT), Luxacrown, and Luxatemp (LT). Results The monomer conversion of D-temp (57.4 ± 1.3%) was comparable to that of N-temp (59.0 ± 1.3%). The conversion of both D-temp and N-temp were higher than that of PT (48.1 ± 3.4%) and LT (48.0 ± 1.6%). BFS of both D-temp (164.2 ± 18.1 MPa) and N-temp (168.6 ± 8.9 MPa) were comparable but higher than that of UF (119.8 ± 13.6 MPa). ∆E00 of D-temp (2.7 ± 0.7) and N-temp (2.5 ± 0.8) were comparable but higher than that of other commercial materials (0.6–1.2). Conclusion The use of DMPT or NTGGMA showed negligible effect on monomer conversion, BFS, and color stability of the experimental provisional restorations. The conversion and BFS of the experimental materials were in the range of that obtained from commercial bis-acryl-based materials. However, the color stability of the experimental materials was lower than that of commercial materials.

show abstract

“…Material jetting (MJ) is an additive manufacturing (AM) technology that can be selected for processing polymers in dentistry to fabricate dental devices including diagnostic casts [1][2][3]. Dental literature has identified factors that influence the manufacturing accuracy, surface roughness and mechanical properties of an AM device including the technology and printer [4,5], geometry of the design [6,7], resin [8][9][10], slicing procedures [9], printing parameters [11][12][13][14][15][16][17], support parameters [4][5][6]8,9,[18][19][20], and post-processing procedures [9,20,21]. However, the optimization of printing parameters for maximizing the manufacturing accuracy of dental diagnostic models is an ongoing process [22].…”

Section: Introductionmentioning

confidence: 99%

Influence of the base design on the accuracy of additive manufactured casts measured using a coordinate measuring machine

et al. 2022

Self Cite

View full text Add to dashboard Cite

Purpose: To measure the accuracy of the additively manufactured casts with 3 base designs: solid, honeycomb-structure, and hollowed bases. Methods: A virtual cast was used to create different base designs: solid (S Group), honeycomb-structure (HC group), and hollowed (H group). Three standard tessellation language files were used to fabricate the specimens using a material jetting printer (J720 Dental; Stratasys) and a resin (VeroDent MED670; Stratasys) (n=15). A coordinate measuring machine was selected to measure the linear and 3D discrepancies between the virtual cast and each specimen. Shapiro-Wilk test revealed that all the data was not normally distributed (P<.05). Kruskal Wallis and Mann Whitney U tests were used (α=.05). Results: The S group obtained a median ±interquartile range 3D discrepancy of 53.00 ±73.25 µm, the HC group of 58.00 ±67.25 µm, and the H group of 34.00 ±45.00 µm. Significant differences were found in the x-(P<.001), y-(P<.001), and z-axes (P<.001), and 3D discrepancies among the groups (P<.001). Significant differences were found between the S and H groups (P=.002) and HC and H groups (P<.001) on the x-axis; S and H groups (P<.001) and HC and H groups (P<.001) on the y-axis; S and H groups (P<.001) and HC and H groups (P<.001) on the z-axis; and S and H groups (P<.001) and HC and H groups (P<.001) on the 3D discrepancy. Conclusions: The base designs influenced on the accuracy of the casts but all the specimens obtained a clinically acceptable manufacturing range. The H group obtained the highest accuracy.

show abstract

Color dimensions of additive manufactured interim restorative dental material

Cited by 50 publications

References 33 publications

Color and Translucency Stability of Three-Dimensional Printable Dental Materials for Crown and Bridge Restorations

Color and Translucency Stability of Three-Dimensional Printable Dental Materials for Crown and Bridge Restorations

Effects of Different Amine Activators on the Monomer Conversion, Biaxial Flexural Strength, and Color Stability of Experimental Provisional Dental Restorations

Influence of the base design on the accuracy of additive manufactured casts measured using a coordinate measuring machine

Contact Info

Product

Resources

About