Journal of Technologic Dentistry (대한치과기공학회지)

Korean Academy of Dental Technology (대한치과기공학회)
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Precision Analysis of Workpieces made with Dental 3D Printing Technology

치과용 3D 프린팅 기술로 제작된 가공물의 정밀성 분석

  • Choi, Sung-min (Department of Dental Laboratory Science, Catholic University of Pusan)
  • 최성민 (부산가톨릭대학교 치기공학과)
  • Received : 2018.04.30
  • Accepted : 2018.12.17
  • Published : 2018.12.30
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Abstract

Purpose: The development of the dental technology industry has digitized the dental process. Definition of Digitalization of Dental Implantation Digitalization is the process of model making and prosthodontic processing using 3D CAD and CAM. Currently, it is becoming popular due to the spread of various devices. However, precision evaluation at this stage is an important factor in precision-based dental procedures. Therefore, in this study, we want to analyze the precision of the processed body made with digital dental machine. Methods: The accuracy of digital dental pore devices was evaluated. Specimens were fabricated with 5 types of 3D printers. The external shape was measured with the prepared specimen. The surface roughness was measured. Results: As a result, precision was excellent in order of EP2 specimen, EP1 specimen, and EA2 specimen. The precision of EP3 specimen and EA1 specimen is not excellent. And the precision of the specimen processed with polymer 3D printer is excellent. The accuracy of LCPS type polymer 3D printers is considered to be excellent. Conclusion : 1. Observation of the shape The 3D printer for LCPS system and the 3D printer for SLM $40{\mu}m$ system were found to be precisely processed. 2. Surface roughness results The LCPS system polymer 3D printer has been shown to have a precise surface.

Keywords

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Figure 1. Shape of specimens, a; size of specimen, b; 3D shape of specimens

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Figure 2. Specimens of 3D printing

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Figure 3. Measurement of specimen diameter

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Figure 4. Measurement points of specimen roughness

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Figure 5. Graph of diameter measurement result

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Figure 6. Graph of Surface Roughness Measurement Results

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Figure 7. Image of the surface

Table 1. Information about of 3D printers used in the study

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Table 2. Classification of specimens

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Table 3. Diameter of specimens

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Table 4. Roughness of specimens surface

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