J Korean Acad Prosthodont.  2019 Oct;57(4):483-489. 10.4047/jkap.2019.57.4.483.

Fabrication of additive manufacturing interim denture and comparison with conventional interim denture: A case report

• Kim HA
• Lim HP
• Kang H
• Yang H
• Park SW
• Yun KD

• KMID: 2461157
• DOI: http://doi.org/10.4047/jkap.2019.57.4.483

Abstract

With development of digital dentistry, the 3-dimensional (3D) manufacturing industry using computer-aided design and computer-aided manufacturing (CAD/CAM) has grown dramatically in recent years. Denture fabrication using digital method is also increasing due to the recent development of digital technology in dentistry. The 3D manufacturing process can be categorized into 2 types: subtractive manufacturing (SM) and additive manufacturing (AM). SM, such as milling is based on cutting away from a solid block of materal. AM, such as 3D printing, is based on adding the material layer by layer. AM enables the fabrication of complex structures that are difficult to mill. In this case, additive manufacturing method was applied to the fabrication of the resin-based complete denture to a 80 year-old patient. During the follow-up periods, the denture using digital method has provided satisfactory results esthetically and functionally.

Keyword

3-dimensional manufacturing process; Computer-aided design and computer-aided manufacturing (CAD/CAM); Additive manufacturing; Complete denture

MeSH Terms

Computer-Aided Design
Dentistry
Denture, Complete
Dentures*
Follow-Up Studies
Humans
Methods
Printing, Three-Dimensional

Figure

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  Fig. 1 Initial panoramic radiograph.

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  Fig. 2 Pre-operative intraoral photographs. Maxillary remained fractured teeth, #23,25. (A) Frontal view, (B) Maxillary occlusal view, (C) Mandibular occlusal view.

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  Fig. 3 Preliminary impression (Post-extraction). (A) Intraoral photograph, (B) Alginate impression, (C) Maxillary working cast.

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  Fig. 4 Interocclusal record. (A) Intraoral photograph, (B) Facebow transfer, (C) Articulator mounting.

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  Fig. 5 Model scan. (A) Upper jaw, (B) Lower jaw, (C) Wax rim bite, (D) Aligning both jaws.

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  Fig. 6 CAD design process (3Shpae Dental Sysytem, 3shape, Copenhagen, Denmark). (A) Occlusal plane, (B) reference point, (C) Borderline, (D) Path of insertion, (E) Artificial tooth selection, (F) Aligning artificial teeth, (G) Individual tooth adjustment, (H) Tooth arrangement, (I) Polished surface, (J) Final denture design.

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  Fig. 7 Support structures using 3D printing software (Flash DLPrint, FLASHFORGE, California, USA). (A) Artificial teeth, (B) Denture base.

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  Fig. 8 (A) 3D Printer (Bio3D_L12, Bio3D, Seoul, Korea), (B) Articifial teeth, (C) Denture base, (D) Final denture.

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  Fig. 9 Denture try-in. (A), (D) Frontal view, (B), (E) Occlusion checkpoint, (C), (F) internal adaptation using silicone material (Fit-checker, GC corporation, Tokyo, Japan).

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