• Title/Summary/Keyword: 치과보철물

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Survey study on the Preference of Dental Medical Personnel for Dental CAD/CAM Milling Machines (치과용 CAD/CAM 밀링기에 대한 치과의료종사자들의 선호도 조사)

  • Song, Eun Sung;Kim, Bongju;Lim, Young-Joon;Lee, Jun Jae
    • The Journal of Korean Academy of Prosthodontics
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    • v.56 no.3
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    • pp.188-198
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    • 2018
  • Purpose: Recently, according to the development of digital technology, computer aided design/computer aided manufacture (CAD/CAM) system is widely used for fabrication of various dental prostheses in the field of dentistry. This study aims to survey the present state and awareness of CAD/CAM system on domestic dental field, and to supply the advice for the application of the new system. Materials and methods: In this questionnaire survey was conducted for a total of 298 dentists, dental hygienist and dental technicians of the whole country including the dental hospital of Seoul National University for two months from November to December, 2016 through mail. Results: The most important purpose to consider when purchasing a dental CAD/CAM milling machine were the performance of the milling machine (64.43%) and the use of milling machine was the highest with 49.33% of manufacturing for dental prosthesis and customized implant abutment. In addition, more than 60% of respondents answered positively about the purchase of new milling machine if the CAD/CAM milling machine was improved to satisfactory performance. Conclusion: This survey results show that the improved CAD/CAM milling machine would be play an important role in the dental industry in preparation for digitization and the 4th industrial revolution.

Full mouth rehabilitation with fixed implant-supported prosthesis using temporary denture and double digital scanning technique: a case report (임시 의치와 이중 디지털 스캐닝 기법을 활용한 전악 고정성 임플란트 수복 증례)

  • Seok-Hyun Shin;Chan-Ik Park;Se-Ha Kang;Ji-Eun Moon;Min-Seok Oh;Chul-Min Park;Woo-Jin Jeon;Seong-Gu Han;Sun-Jae Kim;Su-Jin Choi
    • The Journal of Korean Academy of Prosthodontics
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    • v.61 no.3
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    • pp.245-256
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    • 2023
  • When restoring with a dental digital system for implant-supported prosthesis, a double digital scanning technique is required: an intraoral scan of the three-dimensional implant location and intraoral scan after placement of temporary denture or provisional prosthesis. During the intraoral scan, the use of scan body as a stable landmark can improve the accuracy of digital impression and simplify laboratory process. In this case, a full-digital system was used to plan and fabricate a custom abutment, provisional prosthesis, and definitive prosthesis. After implant placement, the scan area of the intraoral scan body connected with implant and the intraoral scan body marked on the inside of temporary denture were superimposed. Out of the superimposed files, a custom abutment and provisional prosthesis were fabricated which match the vertical dimension of temporary denture, and definitive prosthesis was fabricated based on provisional prosthesis. We report this case because result has been functionally and esthetically satisfactory by using vertical dimension and central relation set during the fabrication of temporary denture to the definitive prosthesis.

Implant-supported fixed prosthesis restoration of fully edentulous patient using computer-guided implant surgery and immediate loading: A case report (Computer guided implant surgery와 immediate loading을 활용한 무치악 환자의 전악 임플란트 고정성 보철물 수복 증례)

  • Hyeon-Me Sung;Kyoung-Hee Sul;Sun-Woo Kang;Jung-Han Kim
    • The Journal of Korean Academy of Prosthodontics
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    • v.62 no.2
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    • pp.131-139
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    • 2024
  • In a edentulous patient, various methods can be employed for prosthetic treatment using implants, such as implant-supported fixed prostheses, overdentures, hybrid prostheses, and implant assisted removable partial denture. In this case, in a patient with moderate to severe chronic periodontitis requiring full arch extractions, implants were strategically placed using computer-guided surgery. In the maxilla, due to inadequate bone quality and quantity leading to insufficient initial stability, delayed loading was implemented, and interim prosthesis was used during the osseointegration period. In the mandible, stable initial stability was achieved, allowing for immediate loading to reduce patient discomfort. Primary stability is considered the most crucial factor for obtaining immediate loading, so a thorough clinical and radiological evaluation of the remaining alveolar bone quantity and quality must be conducted before surgery.

Acquired palatal defect의 보철적 수복

  • Ha, Il-Su
    • 대한치과보철학회:학술대회논문집
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    • 1992.05a
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    • pp.10-11
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    • 1992
  • 상악골이 부분적으로 결손된 환자의 증가와, 수술 후 수명의 연장으로 좀 더 확실한 보철물이 요구되고 있다. 본 증례에서는 종양으로 인해 상악골의 Leoisection을 시행한 2명의 환자에 대하여 obturator를 제작, 창착하여 발표, 심미, 기능 및 심리적인 개선이 이루어졌다. 그러나 악골 자체의 부분의 소실로 외치의 지지 및 유지등에 한계성이 있으므로, 장래의 Hemimaxillectomy가 시행된 악궁에 대한 의치의 설계에 관한 더 많은 연구가 진행되어야 하겠다.

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