• Title/Summary/Keyword: 무치악환자

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Effects of wax rim in image registration of intraoral and face scan in edentulous arch condition (무치악 악궁에서 구강과 안면 스캔의 정합을 위한 왁스림의 활용 효과)

  • Sang-Hyeok Seo;Cheong-Hee Lee;Kyu-Bok Lee;So-Yeun Kim;Du-Hyeong Lee
    • Journal of Dental Rehabilitation and Applied Science
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    • v.40 no.3
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    • pp.135-141
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    • 2024
  • Purpose: The purpose of this study was to investigate the accuracy of image merging of an intraoral scan of an edentulous arch to a facial scan using wax rim and markers. Materials and Methods: For registration of oral scan to face scan, a wax rim with markers was made. The markers were cuboid and divided into four groups according to size (5, 10 mm) and attachment location (midline, canine region). The evaluation of registration accuracy was compared with a standard created using cone-beam computed tomography data. Anterior linear variation of the edentulous arch and the 3D variation of the overall arch were measured. Kruskal-Wallis test and Mann-Whitney U test were used for statistics, and the significance level was set at 0.05 and evaluated under Bonferroni correction (0.05/6 = 0.083). Results: In the anterior deviation and global deviation results, there was no statistically significant difference in the oral scan position displacement values between the 5 mm and 10 mm groups. When the midline marker was used, the intraoral scan position displacement value was significantly lower than when only the canine marker was used. Conclusion: Marker attached wax rim can be used for image matching between facial and intraoral scans of the edentulous arch. Marker location at the middle area increases the accuracy of image matching.

Eight-year follow-up of two different removable prostheses using six implants in maxillary edentulous patients (상악 완전 무치악 환자에서 6개의 임플란트를 동반한 두가지 가철성 의치 치료의 8년 경과 관찰 증례)

  • Yang, Seung-Won;Kim, Jong-Eun;Kim, Jee-Hwan
    • The Journal of Korean Academy of Prosthodontics
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    • v.55 no.3
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    • pp.300-304
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    • 2017
  • An implant-supported fixed dental prosthesis (ISFDP) or an implant-supported overdenture (IOD) are good options when treating a completely edentulous jaw opposing natural teeth. However, an ISFDP for a full arch requires sufficient bone quality and quantity, which limits its application. Meanwhile, using an ISFDP as an abutment of a removable partial denture has been considered recently. This clinical report discusses the treatments applied to two patients with edentulous maxillas and opposing natural teeth: one was treated with an IOD and the other was treated with an ISFDP and removable partial denture. Follow-up and management were performed for 8 years.

Maxillary implant-supported fixed prosthesis engaged by distal-extension removable partial denture for 10 years: a case report (상악의 임플란트 고정성 보철물과 후방연장 국소의치를 이용하여 수복한 10년 경과 관찰 증례)

  • Ryu, Ri;Park, Yeon-Hee;Oh, Won-suk;Lee, Jung-Jin;Park, Ju-mi
    • Journal of Dental Rehabilitation and Applied Science
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    • v.36 no.2
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    • pp.121-127
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    • 2020
  • Prosthodontic decision and management should be considered the patient's aesthetic need for anterior teeth in maxillary edentulism. This case report describes 10-year clinical outcome of a maxillary edentulous patient was rehabilitated by means of an implant-supported fixed dental prosthesis (ISFDP) for the anterior region and a distal-extension removable partial denture (RPD) for the posterior region. The ISFDP was designed to splint 4 endosseous implants as one unit and engaged by the RPD. The edentulous mandible was restored by means of an implant-supported overdenture. Over the course, no major adverse event occurred other than wear, discoloration, and breakage of resin veneers and artificial teeth.

Full mouth implant-supported fixed prosthesis restoration of an edentulous maxillary patient using computer-guided implant surgery (Computer-guided implant surgery를 활용한 상악 무치악 환자의 전악 임플란트고정성 보철물 수복 증례)

  • Min-tae Lee;Sung Yong Kim;Sun-Young Yim;Yong-Sang Lee;Keun-Woo Lee;Seong-A Kim
    • The Journal of Korean Academy of Prosthodontics
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    • v.61 no.1
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    • pp.63-72
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    • 2023
  • When oral restoration is performed with a full mouth implant-supported fixed restoration in an edentulous patient, it is very important to determine the shape and position of the definitive prosthesis in consideration of the anatomical state and the relationship with the antagonist, and the process of placing multiple implants in the planned direction and angle is very important. In this case, implants were ideally planned based on an upper prosthesis through a computer-guided surgical procedure for an edentulous maxillary patient who visited due to discomfort in the existing denture. Through this, we would like to report this because we obtained satisfactory functional and esthetic results for both the patient and the operator with the treatment of oral restoration by manufacturing a fixed prosthesis for maxillary and full jaw implants.

Detachable zirconia prosthesis using Milled bar and ADD-TOC attachment in partial edentulous mandible: A case report (하악 부분 무치악 환자에서 Milled-bar와 ADD-TOC 부착 장치를 이용한 탈착 가능한 지르코니아 보철물 수복 증례)

  • Min-Sung Sohn;Jung-Bo Huh
    • The Journal of Korean Academy of Prosthodontics
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    • v.61 no.1
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    • pp.90-99
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    • 2023
  • Implant overdentures are widely used as a treatment method to restore oral function in completely edentulous or partially edentulous patients with severe bone resorption. Using a milled bar, it is mechanically advantageous as the implant fixtures are splinted. Applying additional attachments to the bar has the advantage of dispersing the stress applied to the implant. In this case, a patient who used implant overdentures using 4 implants wanted to fabricate a new prosthesis due to repeated fractures of the denture and weakened retention. Milled bar with ADD-TOC attachment and zirconia prosthesis were fabricated by CAD-CAM method and mechanically and aesthetically satisfactory results were obtained.