Evaluation of the 3d printing accuracy of a dental model according to its internal structure and cross-arch plate design: An in vitro study

Seung Ho Shin, Jung Hwa Lim, You Jung Kang, Jee Hwan Kim, June Sung Shim, Jong Eun Kim

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

The amount of photopolymer material consumed during the three-dimensional (3D) printing of a dental model varies with the volume and internal structure of the modeling data. This study analyzed how the internal structure and the presence of a cross-arch plate influence the accuracy of a 3D printed dental model. The model was designed with a U-shaped arch and the palate removed (Group U) or a cross-arch plate attached to the palate area (Group P), and the internal structure was divided into five types. The trueness and precision were analyzed for accuracy comparisons of the 3D printed models. Two-way ANOVA of the trueness revealed that the accuracy was 135.2 ± 26.3 µm (mean ± SD) in Group U and 85.6 ± 13.1 µm in Group P. Regarding the internal structure, the accuracy was 143.1 ± 46.8 µm in the 1.5 mm-thick shell group, which improved to 111.1 ± 31.9 µm and 106.7 ± 26.3 µm in the roughly filled and fully filled models, respectively. The precision was 70.3 ± 19.1 µm in Group U and 65.0 ± 8.8 µm in Group P. The results of this study suggest that a cross-arch plate is necessary for the accurate production of a model using 3D printing regardless of its internal structure. In Group U, the error during the printing process was higher for the hollowed models.

Original languageEnglish
Article number5433
Pages (from-to)1-12
Number of pages12
JournalMaterials
Volume13
Issue number23
DOIs
Publication statusPublished - 2020 Dec 1

Bibliographical note

Funding Information:
Funding: This study was supported by the Advanced Technology Center(ATC) Program funded by the Ministry of Trade, Industry and Energy (MOTIE, Korea) (10077361, Integrated System for Dental Diagnosis, Treatment Simulation & PSI (Patient Specific Instrument) Design).

Funding Information:
This study was supported by the Advanced Technology Center(ATC) Program funded by the Ministry of Trade, Industry and Energy (MOTIE, Korea) (10077361, Integrated System for Dental Diagnosis, Treatment Simulation & PSI (Patient Specific Instrument) Design).

Publisher Copyright:
© 2020 by the authors. Licensee MDPI, Basel, Switzerland.

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

Fingerprint

Dive into the research topics of 'Evaluation of the 3d printing accuracy of a dental model according to its internal structure and cross-arch plate design: An in vitro study'. Together they form a unique fingerprint.

Cite this