• Title, Summary, Keyword: Computer-Aided Manufacturing

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Stabilization Splint Fabrication Using Computer-Aided Design/Computer-Aided Manufacturing and Three-Dimensional Printing

  • Sohn, Byung-Jin;Kim, Wook;Kim, Jea-Hong;Baik, Un-Bong
    • Journal of Oral Medicine and Pain
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    • v.44 no.2
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    • pp.74-76
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    • 2019
  • A conservative treatment approach to temporomandibular disorder (TMD) is recommended as the first line of management, usually with a stabilization splint. Recently, computer-aided design/computer-aided manufacturing and three-dimensional printer has been widely used in the dentistry since several years ago. The authors apply digital dentistry in oral medicine fields to make stabilization splint for TMD treatment.

Computer Aided Process Planning for 3D Printing

  • Park, Hong-Seok;Tran, Ngoc-Hien
    • Journal of The Korean Society of Manufacturing Technology Engineers
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    • v.24 no.2
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    • pp.148-154
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    • 2015
  • Computer aided process planning (CAPP) keeps an important role between the design and manufacturing engineering processes. A CAPP system is a digital link between a computer aided design (CAD) model and manufacturing instructions. CAPP have been researched and applied in manufacturing filed, however, one manufacturing area where CAPP has not been extensively researched is rapid prototyping (RP). RP is a technique for creating directly a three dimensional CAD data into a physical prototype. RP enables to build physical models automatically and to use to reduce the time for the product development cycle as well as to improve the final quality of the designed product. Three-dimensional (3D) printing is one kind of RP that creates three-dimensional objects from CAD models. The paper presents a computer aided process planning system for printing medical products. 3D printing has been used to solve complex medical problems such as surgical instruments, bioengineered products, medical implants, and surgical guides.

Fabricating a Ceramic-Pressed-to-Metal Restoration with Computer-Aided Design, Computer-Aided Manufacturing and Selective Laser Sintering: A Case Report

  • Lee, Ju-Hyoung;Kim, Hyung Gyun
    • Journal of Korean Dental Science
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    • v.8 no.1
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    • pp.41-47
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    • 2015
  • Even though a conventional metal ceramic restoration is widely in use, its laboratory procedure is still technique-sensitive, complex, and time-consuming. A ceramic-pressed-to-metal restoration (PTM) can be a reliable alternative. However, simplified laboratory procedure for a PTM is still necessary. The article is to propose a technique that reduces time and effort to fabricate a PTM with the aid of computer-aided design, computer-aided manufacturing and selective laser sintering technologies.

Single-tooth dento-osseous osteotomy with a computer-aided design/computer-aided manufacturing surgical guide

  • Kang, Sang-Hoon;Kim, Moon-Key;Lee, Ji-Yeon
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.42 no.2
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    • pp.127-130
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    • 2016
  • This clinical note introduces a method to assist surgeons in performing single-tooth dento-osseous osteotomy. For use in this method, a surgical guide was manufactured using computer-aided design/computer-aided manufacturing technology and was based on preoperative surgical simulation data. This method was highly conducive to successful single-tooth dento-osseous segmental osteotomy.

Analysis of Fineblanking Forming using CAE (CAE를 이용한 파인블랭킹 성형 해석)

  • Lee, K.Y.;Nam, K.W.
    • Journal of the Korea Society For Power System Engineering
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    • v.15 no.4
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    • pp.60-64
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    • 2011
  • Computer-aided engineering (CAE) is the broad usage of computer software to aid in engineering tasks. It includes computer-aided design (CAD), computer-aided analysis (CAA), computer-integrated manufacturing (CIM), computer-aided manufacturing (CAM), material requirements planning (MRP), and computer-aided planning (CAP). In this study, the stress of mold analyzed using CAE technique. Punch loads were same difference between 0.5 % and 1.0 % of clearance, but punch load was decreased according to increasing of clearance. Punch load of pre-piercing process worked a little smaller than piercing process. Therefore, the hole of fine blanking process is also more efficient to manufacture the true size after pre-piercing.

CAD/CAM fabricated complete denture using 3D face scan: A case report (3D face scan을 이용한 CAD/CAM 제작 의치 증례)

  • Eom, Dae-Young;Leesungbok, Richard;Lee, Suk-Won;Park, Su-Jung;Ahn, Su-Jin
    • The Journal of Korean Academy of Prosthodontics
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    • v.55 no.4
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    • pp.436-443
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    • 2017
  • In the past, computer-aided design / computer-aided manufacturing (CAD/CAM) technology was the closed system that users had to use the components of only one manufacturer. At present, it has changed to the open system with the flexibility to select and use the components of various manufacturers' components according to their needs. Despite the development of dental materials and prostheses manufacturing methods, denture manufacturing has followed conventional manufacturing methods for nearly 100 years. However, studies on CAD/CAM fabricated denture have been recently carried out to overcome the disadvantages of conventional denture manufacturing. Some commercialized products using milling or 3D printing have already been applied clinically. This case report confirms the possibility of CAD/CAM dentures using 3D face scan and compared them to conventionally fabricated dentures.

Fabrication of computer-aided design/computer-aided manufacturing complete denture and conventional complete denture: case report (CAD/CAM system과 전통적인 방법을 이용한 총의치 동시 제작 증례)

  • Kim, Mi-Jin;Kim, Kang-Ho;Yeo, Dong-Heon
    • Journal of Dental Rehabilitation and Applied Science
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    • v.32 no.2
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    • pp.141-148
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    • 2016
  • Recently computer-aided technology has been widely used in dentistry. DENTCA$^{TM}$ CAD/CAM denture system (DENTCA Inc.), one of CAD/CAM systems for fabricating complete denture, tries to collect and store all of a patient's information at the first visit. This system aims to deliver denture at the second visit through utilizing the CAD/CAM software to access the stored data for designing the 3D denture model. The 3 dimensional (3D) denture will then be fabricated with 3D printer. Many case reports have evaluated clinical application of CAD/CAM system for fabricating complete dentures. This case report is about fabricating of complete dentures using DENTCA system and conventional method in same patient. With two cases, usefulness and limitation of DENTCA system could be evaluated.

Improvement of Computer-Aided Manufacturing (CAM) Software for Laser Machining

  • Bayesteh, Abdoleza;Ko, Junghyuk;Ahmad, Farid;Jun, Martin B.G.
    • Journal of The Korean Society of Manufacturing Technology Engineers
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    • v.24 no.4
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    • pp.374-385
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    • 2015
  • In this paper, effective and user friendly CAM software is presented that automatically generates any three dimensional complex toolpaths according to a CAD drawing. In advanced manufacturing, often it is essential to scan the sample following a complex trajectory which consists of short (few microns) and multidirectional moves. The reported CAM software offers constant velocity for all short trajectory elements and provides an efficient shift of tool path direction in sharp corners of a tool trajectory, which is vital for any laser, based precision machining. The software also provides fast modification of tool path, automatic and efficient sequencing of path elements in a complicated tool trajectory, location of reference point and automatic fixing of geometrical errors in imported drawing exchange files (DXF) or DWG format files.

Full mouth rehabilitation utilizing computer guided implant surgery and CAD/CAM (Computer guided implant surgery와 CAD/CAM을 활용한 전악 수복 증례)

  • Kim, Sungjin;Han, Jung-Suk;Kim, Sung-Hun;Yoon, Hyung-In;Yeo, In-Sung Luke
    • The Journal of Korean Academy of Prosthodontics
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    • v.57 no.1
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    • pp.57-65
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    • 2019
  • Computer aided design and manufacturing and implant surgery using a guide template improve restoration-driven implant treatment procedures. This case utilized those digital technologies to make definitive prostheses for a patient. According to the work flow of digital dentistry, cone beam computed tomography established the treatment plan, which was followed to make the guide template for implant placement. The template guided the implants to be installed as planned. The customized abutments and surveyed fixed restorations were digitally designed and made. The metal framework of the removable partial denture was cast from resin pattern using an additive manufacturing technique, and the artificial resin teeth were replaced with the zirconia onlays for occlusal stability. These full mouth rehabilitation procedures provided functionally and aesthetically satisfactory results for the patient.

Fabrication of additive manufacturing interim denture and comparison with conventional interim denture: A case report (적층가공을 이용한 임시의치 제작 및 기존방식의 임시의치와의 비교 증례)

  • Kim, Hyun-Ah;Lim, Hyun-Pil;Kang, Hyeon;Yang, Hongso;Park, Sang-Won;Yun, Kwi-Dug
    • The Journal of Korean Academy of Prosthodontics
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    • v.57 no.4
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    • pp.483-489
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    • 2019
  • 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.