• Title/Summary/Keyword: 보철학

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Fabrication of CAD-CAM complete denture using existing provisional denture and digital facebow transfer (기존 임시의치와 디지털 안궁이전을 이용하여 상하악 CAD-CAM 총의치 수복 증례)

  • Jaehyeok Ro;Haemin Bang;Sangwon Park;Hyun-Pil Lim;Kwi-Dug Yun;Chan Park
    • The Journal of Korean Academy of Prosthodontics
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    • v.61 no.4
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    • pp.268-274
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    • 2023
  • In this case, a CAD-CAM complete denture that can be easily remanufactured and reduced the number of visits was decided in consideration of the fact that it was difficult to visit the dental hospital and many existing dentures were lost because the patient was inpatient in a nursing hospital. In order to reflect the shape, vertical dimension, and maxillomandibular relationship of the existing provisional dentures adapted by the patient to the fabrication of the final denture, the existing provisional dentures were scanned and closed mouth impression was taken with the printed individual tray. After digital facebow transfer using UTS CAD and arranging artificial teeth in CAD software, the maxillary and mandibular complete dentures were fabricated by milling the denture base and artificial teeth at once with the monolithic disc.

Utilization of digital technology in fabricating mandibular implant overdenture for skeletal class II edentulous patient: A case report (2급 악간관계를 보이는 하악 무치악 환자에서 디지털 진단기술을 이용한 임플란트 피개의치 수복증례)

  • Lee, Yeun-Yi;Hong, Seoungjin;Paek, Janghyun;Noh, Kwantae;Kwon, Kung-Rock
    • The Journal of Korean Academy of Prosthodontics
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    • v.57 no.4
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    • pp.364-373
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    • 2019
  • Unlike class I patients, skeletal class II patients have unstable occlusion thus leading to instability of mandibular complete denture. Therefore, mandibular implant overdenture has been the standard of care due to its advantages in stability and retention. The types of attachments can be divided into two categories: solitary and bar type. The indications vary between two categories. In this clinical report, digital technology was utilized from the implant planning to the choice of appropriate attachment. Implants were placed at the desired location as previously planned in terms of angle and depth. Maxillary removable partial denture and mandibular implant overdenture are expected to have fair prognosis.

Maxillary overdenture restoration using functionally generated path technique: a case report (Functionally generated path technique을 이용한 편악 피개의치 수복 증례)

  • Jo, Yukyung;Lee, Younghoo;Hong, Seoung-Jin;Noh, Kwantae;Pae, Ahran;Kim, Hyeong-Seob;Kwon, Kung-Rock;Paek, Janghyun
    • The Journal of Korean Academy of Prosthodontics
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    • v.60 no.1
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    • pp.55-62
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    • 2022
  • The functionally generated path (FGP) technique, first described by Meyer in 1933, is a method in the oral cavity to use the movement pathway formed by the opposing cusps within the border movement of the mandible. Using this method, an appropriate occlusal shape can be given to the patient. In this case, the FGP technique was selected to provide a bilateral balanced occlusion when restoring the edentulous maxilla that opposes the natural mandibular teeth with irregular arrangement with overdentures. In addition, in order to precisely form the occlusal surface of the posterior region with the FGP technique and to reduce the attrition of denture teeth, zirconia denture teeth, not conventional resin artificial teeth, were individually manufactured. After treatment with these materials and methods, satisfactory results were obtained for both the operator and the patient.

Usage of digital technique to facilitate communication between dentist, dental lab technician, and patients in diagnosis and restoration for maxillary anterior implant: a case report (디지털 기법을 활용한 치과의사, 기공사, 그리고 환자 간의 효과적인 소통을 통한 전치부 임플란트의 진단 및 심미수복 증례)

  • Bang, Haemin;Jang, Woohyung;Park, Chan;Yun, Kwi-Dug;Lim, Hyun-Pil;Park, Sangwon
    • Journal of Dental Rehabilitation and Applied Science
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    • v.38 no.1
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    • pp.42-51
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    • 2022
  • Esthetic restoration of maxillary anterior implant heavily depends on the direction of installation of implant fixture. In patients with malpositioned implant, it is crucial to communicate the limitations of prosthetic outcome with the patient before starting on a restoration. To facilitate the communication, three-dimensional virtual representation by superimposing facial and intraoral digital scans with Computed Tomography (CT, dicom file) was used for visualization of the limitations of prosthesis. Through digital diagnostic wax-up, the profile of right maxillary anterior incisor implant was expected to be protrusive, which the patient was not satisfied with. Since the patient already had done root canal treatment on left maxillary anterior incisor due to previous trauma, a new prosthetic design including both right and left maxillary anterior incisors was presented to the patient. The second design was chosen and his comments were delivered to dental lab. The patient was satisfied with the new prosthesis, aesthetically and functionally.

Full-mouth rehabilitation with increasing vertical dimension on the patient with severely worn-out dentition and orthognathic surgery history: A case report (악교정수술 병력을 가진 과도한 치아 마모를 보이는 환자의 수직고경 증가를 동반한 전악 수복 증례)

  • Sang-Myeong Tak;Chang-Mo Jeong;Jung-Bo Huh;So-Hyoun Lee;Mi-Jung Yun
    • The Journal of Korean Academy of Prosthodontics
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    • v.61 no.1
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    • pp.33-43
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    • 2023
  • Pathological wear across the entire dentition causes problems such as collapsed occlusal plane, reduced vertical dimension, anterior premature contact, inadequate anterior guidance, and tooth migration, thereby induce symptoms such as temporomandibular joint disorder, reduced masticatory efficiency, and tooth hypersensitivity. For the treatment of patients with excessive wear, evaluation of vertical dimension should be preceded along with analysis of the cause. The patient in this case was a 45-year-old female with a history of orthognathic surgery. Through clinical examination, radiographic examination, and model analysis, overall tooth wear, interdental spacing in the anterior maxillary region, retruded condylar position, and insufficient interocclusal space for prosthetic restoration were confirmed. Full mouth rehabilitation with increased vertical dimension was planned, the patient's adaptation to the new vertical dimension was evaluated with a removable occlusal splint and temporary prosthesis, and cross-mounting was performed based on the temporary restoration to fabricate the definitive zirconia prosthesis, maintaining the adjusted vertical dimension. It showed satisfactory functional and esthetic results through stable restoration of the occlusal relationship.

A case of digital maxillary complete denture and mandibular implant overdenture fabricated by CAD-CAM technique (완전 무치악 환자에서 CAD-CAM 기법을 이용한 상악 총의치 및 하악 임플란트 피개의치 수복: 증례 보고)

  • Kim, Kun Min;Oh, Kyung Chul;Kim, Sang Hyun;Han, Chol Gwan;Kim, Jee Hwan
    • The Journal of Korean Academy of Prosthodontics
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    • v.59 no.4
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    • pp.442-450
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    • 2021
  • The CAD-CAM technique is a rapidly developing field in the dental field and is applied to various fields of prosthetic treatment. Among them, the manufacturing of dentures using the milling technique classified as subtractive manufacturing is one of the commercialized digital full denture manufacturing methods. At the same time, it is possible to more efficiently manufacture a metal framework for implant overdenture by selective laser sintering or melting technique classified as an additive manufacturing method. The purpose of this article is to describe the fabrication of CAD-CAM maxillary complete denture and mandibular implant overdenture as well as its features.

A case report of single crown restoration using an intraoral scanner for occlusal evaluation (단일 치관 수복 시 구강스캐너를 이용한 교합평가 활용 증례보고)

  • Song, Jun-Beom;Lee, Jong-Hyuk;Ha, Seung-Ryong;Choi, Yu-Sung;Choi, Sun-Young
    • The Journal of Korean Academy of Prosthodontics
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    • v.59 no.3
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    • pp.341-349
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    • 2021
  • The evaluation of occlusion using digital methods is easier and simpler in terms of recording, comparison, analysis, and objectivity compared to existing methods such as articulating paper and occlusion foil. The purpose of this case report was utilizing the digital method for evaluating occlusion. The occlusion of patient requiring full veneer crown restoration was evaluated using an intraoral scanner (i500, Medit, Seoul, Korea) at every visit. The occlusion was also assessed using conventional articulating paper and a digital occlusal analysis system (Dental prescale II, GC corp., Tokyo, Japan) for comparison. Throughout the treatment process, the intraoral scanner and the conventional articulating paper method showed similar outcomes. The results suggest that the use of digital evaluation system is highly probable in the near future.

Proposal of practical digital implant treatment protocol : A case report (실용적인 디지털 임플란트 치료 프로토콜 제안 : 증례보고)

  • Yang, Hongso;Park, Sang-Won;Lim, Hyun-Pil;Yun, Kwi-Dug;Park, Chan;Lee, Doyun
    • The Journal of the Korean dental association
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    • v.57 no.9
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    • pp.529-533
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    • 2019
  • Recently, an advanced workflow has been introduced to finish implant surgery and prosthetic treatment in one-day. However, Because of 1. Patient's physical condition, 2. Surgical technique, 3. Digital technical limitations, the complete completion of one-day implant treatment is practically difficult. Therefore, this paper proposes a "two-days implant digital workflow" that short-time implant surgery and restores prosthetics the next day. Even though it takes more than one day, this workflow is a realistic implant treatment protocol that can reduce the chair time in the clinic.

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