• 대한치과기공학회지
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• 제43권4호
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• pp.202-209
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• 2021

By classifying temporary denture production for surgical guides, digital guide-based surgery, and final prosthesis production, the problems of each process were assessed in advance and the factors that could be improved were confirmed in this study. The manufacturing process of fusion dental prosthesis uses virtual programs and computed tomography images to manufacture devices using the latest technologies of computer-aided design/computer-aided manufacturing and three-dimensional printing, which enables implants to be placed in the desired location in advance. Moreover, implant placement is not dependent on the skill and condition of the dentist, and because it uses a computer system, it can always be performed at a constant and optimal position. This can reduce the remanufacturing rate compared with the general method, shorten the treatment period, and eliminate patient discomfort. Unlike the traditional method of using impression materials and plaster models, digital fusion dental prostheses would be evaluated as a technology for producing prosthesis through professional design technology and communication.

• The Journal of Advanced Prosthodontics
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• 제4권2호
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• pp.116-120
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• 2012

Various options have been introduced for the selection of implant overdenture attachments. Attachment wear due to the repeated insertion and removal of dentures has caused problems such as decreased retention and the requirement for suprastructure remanufacturing. In these cases, a Locator bar system was applied using the drill and tapping technique to achieve total retrievability. In a 55-year-old female patient who showed three degrees of mobility in most of her teeth due to severe alveolar bone loss, a complete denture in the maxilla and an implant supported type overdenture in the mandible were planned after extracting all the remaining teeth. Six implants were placed from canine region to the distal molar region, and the locator was connected to the milled bar using the drill and tapping technique. For a 61-year-old female edentulous patient who complained of poor retention with old denture, a complete denture in the maxilla and an implant-tissue supported type overdenture in the mandible were planned. Four implants were placed in front of mental foramen, and the Locator was also connected to the Hader bar using the drill and tapping technique. With this technique, female parts can be easily replaced, and retention can be continuously maintained.

• 자원리싸이클링
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• 제30권3호
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• pp.3-17
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• 2021

산업혁명 이후 인간의 대량생산과 과소비는 자원고갈, 환경오염, 폐기물발생 및 지구온난화 문제를 야기시키는데, 이는 물질제조와 사용 및 폐기를 반복하는 선형경제에서 기인 된 것이다. 선형경제의 문제점을 극복할 대안은 자원이용의 효율성향상을 통한 자원고갈문제 해결, 에너지효율 향상 및 대체에너지 개발에 의한 CO₂ 발생억제, 물질활용의 극대화 및 오염물질의 무해화, 제품의 재사용과 재활용 등을 통한 폐기물발생의 제로화를 기할 수 있는 유일한 방법인 순환경제로의 전환뿐이다. 순환경제는 사용 후 제품의 폐기보다 재생 및 재활용이 가능케하여 상호연결고리 안에서 반복사용함으로써, 생산 후 판매에만 그치지 않고 실질적인 가치와 편익이 대부분 다시 창출되는 사용 및 회수까지의 가치사슬을 확장하는 경제개념이다. 이를 이루기 위해서는 순환경제로 혁신적인 변환의 절실함을 깊이 인식하여, 지구생태계 보호 및 지속가능한 성장에 필요한 새로운 비즈니스모델을 제시한 다음 현실화화 시켜야 한다. 그리고 전술한 내용의 순환경제로의 전환은 필요성 인식, 성공적인 달성방안 및 방법확립, 다양한 비즈니스모델의 실현, 구체적인 우위기술 확보 및 정책적인 지원이 수반되어야 가능할 것이다.