Abstract
Statement of problem
Limited data are available regarding the most suitable separating medium for fabricating
dental acrylic resin prostheses or appliances on 3-dimensional (3D)-printed resin
casts.
Purpose
The purpose of this in vitro study was to investigate and evaluate different separating
media in terms of the ease of removal and detail reproduction of an autopolymerizing
acrylic resin fabricated on acrylate-based 3D-printed resin casts.
Material and methods
A cube-shaped cast was designed with a built-in truncated cone-shaped hole and a V-shaped
groove at the base. Seventy-five casts were 3D-printed using acrylate-based resin
and assigned to 5 groups according to the applied separating media: Siliform BEA (silicone-based),
IMPRIMO 3D (alginate-based), 3D Modellisolierung (wax-based), TECHNOSIL (alginate-based),
and none (control). After the application of the separating media, the truncated cone-shaped
holes in the specimens were filled with autopolymerizing acrylic resin. The efficacy
of the separating media was evaluated according to the ease of removal on a scale
of 1 to 3 and accurate detail reproduction of the V-shaped groove on a scale of 1
to 3 under ×6 magnification. The nonparametric Kruskal-Wallis rank test was used to
identify significant differences among the separating media (α=.05).
Results
Significant differences were found among the groups (P<.001). Siliform BEA and 3D Modellisolierung had the best mean rank in both the ease
of removal and detail reproduction scores, which were significantly different from
those of the alginate-based separating media (IMPRIMO 3D and TECHNOSIL) and the control
group (P<.01).
Conclusions
The dedicated silicone- and wax-based separating media for 3D-printed casts exhibited
the most favorable performance in terms of ease of removal and detail reproduction.
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References
- A review of 3D printing in dentistry: technologies, affecting factors, and applications.Scanning. 2021; 2021: 9950131
- Three-dimensional printing technology in orthodontics for dental models: a systematic review.Children (Basel). 2022; 9: 1106
- A validation study of reconstructed rapid prototyping models produced by two technologies.Angle Orthod. 2017; 87: 782-787
- 3D printing in dentistry.Br Dent J. 2015; 219: 521-529
- 3D printing with polymers: challenges among expanding options and opportunities.Dent Mater. 2016; 32: 54-64
- Frontal conversion and uniformity in 3d printing by photopolymerisation.Materials (Basel). 2016; 9: 760
- Denture mold separators as a cause of staining around porcelain denture teeth.J Prosthet Dent. 1967; 17: 149-154
- The effect of gypsum products and separating materials on the typography of denture base materials.J Prosthet Dent. 1980; 44: 254-258
- A comparative study of silicone as a separating medium for denture processing.J Prosthet Dent. 1979; 42: 386-391
- Effect of gypsum separating media on the appearance of stone cast surfaces.J Prosthet Dent. 2014; 112: 1001-1005
- Modification of a Super-Sep bottle for paint-on application of a separating medium used in flasking dentures.J Prosthet Dent. 2001; 85: 415-417
- Manufacturing Hawley retainers on 3D printed models with the form 2.(Available at:)https://3d.formlabs.com/manufacturing-hawley-retainers-3d-printed-models/Date accessed: November 15, 2022
- Special purpose partial dentures.in: Rudd K.D. Morrow R.M. Rhoads J.E. Dental Laboratory Procedures: Removable Partial Denture. Vol III. 2nd ed. CV Mosby, St Louis1986: 562-576
- Phillips' Science of Dental Materials.13th ed. Elsevier, St. Louis2022: 235-236
- Basics of Dental Technology: A Step by Step Approach.2nd ed. John Wiley & Sons Ltd, West Sussex2016: 155
- A review of multi-material 3D printing of functional materials via vat photopolymerization.Polymers (Basel). 2022; 14: 2449
Article info
Publication history
Published online: May 17, 2023
Publication stage
In Press Corrected ProofFootnotes
Funding: This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
Identification
Copyright
© 2023 by the Editorial Council for The Journal of Prosthetic Dentistry.
