• Title/Summary/Keyword: Surgical guide

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Genioplasty using a simple CAD/CAM (computer-aided design and computer-aided manufacturing) surgical guide

  • Lim, Se-Ho;Kim, Moon-Key;Kang, Sang-Hoon
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.37
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    • pp.44.1-44.6
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    • 2015
  • Background: The present study introduces the design and fabrication of a simple surgical guide with which to perform genioplasty. Methods: A three-dimensional reconstruction of the patient's cranio-maxilla region was built, with a dentofacial skeletal model, then derived from CT DICOM data. A surgical simulation was performed on the maxilla and mandible, using three-dimensional cephalometry. We then simulated a full genioplasty, in silico, using the three-dimensional (3D) model of the mandible, according to the final surgical treatment plan. The simulation allowed us to design a surgical guide for genioplasty, which was then computer-rendered and 3D-printed. The manufactured surgical device was ultimately used in an actual genioplasty to guide the osteotomy and to move the cut bone segment to the intended location. Results: We successfully performed the osteotomy, as planned during a genioplasty, using the computer-aided design and computer-aided manufacturing (CAD/CAM) surgical guide that we initially designed and tested using simulated surgery. Conclusions: The surgical guide that we developed proved to be a simple and practical tool with which to assist the surgeon in accurately cutting and removing bone segments, during a genioplasty surgery, as preoperatively planned during 3D surgical simulations.

The use of surgical guide stent for implant placement (임플란트 식립을 위한 수술 가이드의 사용)

  • Lee, Ji-Yeon;Yoon, Ji-Young;Oh, Namsik
    • The Journal of Korean Academy of Prosthodontics
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    • v.52 no.4
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    • pp.366-375
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    • 2014
  • Surgical guide not only provide diagnosis and treatment plan, but even location and direction of implantation. Surgical guide could be divided into non-limited design, partially limited design, and completely limited design. Partially limited design is easily manufactured and inexpensive but less accuracy, compared to completely limited design. From this approach, partially limited design may be particularly effective in patients who present with a single missing tooth or partially edentulous teeth. Completely limited design is anatomically accuracy, esthetical and functional, optimized treatment for prosthetic and biomechanical perspective, and also minimizes discomfort for post-treatment. The purpose of this study is to review previous studies of various surgical guides and applying in clinic.

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.

Implementation of Cervical Pedicle Surgical Guide for Safe Surgery

  • Kwak, Ho-Young;Huh, Jisoon;Lee, Won-Joo
    • Journal of the Korea Society of Computer and Information
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    • v.22 no.12
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    • pp.125-130
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    • 2017
  • Screw insertion surgery is frequently required among surgical procedures. Especially, very careful attention should be paid to the insertion of screw in the operation of the cervical vertebra. Therefore, there is a need for a guide that allows the surgeon to reliably and promptly perform treatment by calculating the desired insertion angle and length for screw insertion. In this study, the center and direction of the pedicle were calculated through 3D modeling and 3D vector numerical analysis using the CT or MRI image of the patient for the safe operation of the guide, and based on this, After that, we will implement surgical guide based on this.

An analysis on satisfaction level of clinicians on implant surgical guidance system based on computed tomography (컴퓨터 단층 촬영을 기반으로 한 임플란트 가이드 시스템에 대한 임상가의 만족도 분석)

  • Hong, Min-ho;Jin, Ming-Xu;Lee, Du-Hyeong;Lee, Kyu-Bok
    • Journal of Dental Rehabilitation and Applied Science
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    • v.31 no.3
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    • pp.178-185
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    • 2015
  • Purpose: The purpose of this study was to conduct a comparative assessment on the satisfaction level for the two interfaces of surgical guide system (SimPlant and R2GATE), the design and convenience of manufactured surgical guides and the importance of using the surgical guides thereof by means of survey. Materials and Methods: Hereupon, they simulated the implant surgical process by mounting the two manufactured systems of surgical guide on a dental mold, respectively. The study subjects were instructed to complete the questionnaire as to the satisfaction level upon completion of the simulated surgery. This study summarized the data of each question after collecting the completed questionnaires. Then, this study analyzed the summarized data by utilizing statistical program SPSS 20.0 (IBM). Results: R2GATE had a higher value of the satisfaction level on the design and convenience of manufactures surgical guides. R2GATE group ($7.33{\pm}1.26$) was found to have a higher value in terms of the overall satisfaction level compared to SimPlant group ($6.67{\pm}1.26$) (${\alpha}$ = 0.05). Conclusion: The user satisfaction level on the surgical guide manufactured for R2GATE system was to such an extent as it can be widely used in clinical environment. Moreover, the surgical guide manufactured as R2GATE system can guide both the length and direction of a drill simultaneously. As a result, it is highly recommended for those beginners who do not have a lot of experience in implant placement.

Flapless implant surgery on atrophied alveolar ridge in a patient with growth disorder (성장 장애를 가진 부분 무치악 환자에서 위축된 골에 무피판 임플란트 수술 증례)

  • Lee, Du-Hyeong
    • Journal of Dental Rehabilitation and Applied Science
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    • v.30 no.2
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    • pp.170-175
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    • 2014
  • The growth disorder influences craniofacial development and early loss of permanent teeth. This case reports the importance of computerized tomography (CT) and surgical guide to identify horizontal bone loss, adjacent teeth and to guide drills when placing implants in a short stature patient. The patient has idiopathic short stature and the 3rd grade of intellectual disability. To recover posterior mandibular teeth, implant treatment was planned. CT images showed that the adjacent teeth were located markedly to the buccal side. A CT-based surgical guide was fabricated and implants was placed using flapless surgery. Bone dehiscence and fenestration may happen when the surgical guide was fabricated just based on adjacent clinical crowns. Thus, it is essential to analysis bone and teeth and to make surgical guide through CT, especially in atrophied bone on grow disorder patients. Furthermore, systematic researches are recommended to elucidate the relationship between growth disorder and tooth malposition.

Full mouth rehabilitation of a patient with severe periodontitis using immediate loading after computer aided flapless implant surgery (심한 치주질환을 가진 환자에서 computer aided flapless surgery와 즉시 부하를 통한 전악 구강 회복 증례)

  • Kang, Seong hun;Choi, Yeon jo;Ryu, Jae jun
    • Journal of Dental Rehabilitation and Applied Science
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    • v.34 no.1
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    • pp.46-55
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    • 2018
  • Oral rehabilitation of a patient having severe periodontitis with alveolar bone resorption and periodontal inflammation presents a challenge to clinicians. However, if appropriate implant placement according to the bone shape is selected, unnecessary bone grafting or soft tissue surgery can be minimized. In recent years, using cone beam CT and software, it has become possible to operate the planned position with the surgical guide made with 3D printing technology. This case was a 70 years old female patient who required total extraction of teeth due to severe periodontitis and performed a full-mouth rehabilitation with an implant - supported fixed prosthesis. During the surgery, the implant was placed in a flapless manner through a surgical guide. Immediate loading of the temporary prosthesis made by CAD/CAM method before surgery was done. Since then, we have produced customized abutments and zirconia prostheses, and have reported satisfactory aesthetic and functional recovery.

An assessment of accuracy of half-guided implant surgery using implant surgical guide: A case report (임플란트 수술용 가이드를 사용한 부분 유도 임플란트 수술의 정확도 평가: 증례보고)

  • Kim, Choongkil;Lee, Wonsup;Kwon, Ho-Beom
    • The Journal of Korean Academy of Prosthodontics
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    • v.57 no.2
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    • pp.150-159
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    • 2019
  • Nowadays, dental implant is one of the widely used treatment options for edentulous patients. Recently, a method of improving the accuracy of implant surgery using an implant surgical guide has been introduced and widely used in order to accurately place the implant in a proper position. Full-guided and half-guided implant surgery can be distinguished according to the level of surgical guide application during the implant surgery. It is true that full-guided implant surgery exhibits higher accuracy, but half- guided implant surgery is often performed in a clinical situation due to the factors such as the circumstances of the operation. A partially edentulous patient who lost teeth due to tooth fracture and periodontal disease was treated using implant and fixed prosthesis. Half-guided implant surgery was performed using an implant surgical guide during implant surgery, the accuracy of implant placement was analyzed.

Full mouth rehabilitation with Implant-Guided Surgery and Fixed prosthesis (Implant-Guided Surgery를 이용한 고정성 임플란트 보철물의 전악 수복 증례)

  • Kim, Seong-Mo;Park, Jin-Hong;Ryu, Jae-Jun;Shin, Sang Wan;Lee, Jeong-Yol
    • The Journal of Korean Academy of Prosthodontics
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    • v.56 no.2
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    • pp.126-133
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    • 2018
  • The development of cone beam computerized tomography (CBCT) allows three-dimensional analysis of the patient's anatomy. The surgical guide is a combination of CBCT, computer-aided design/computer-aided manufacturing (CAD/CAM) and implant diagnostics software, which allows well planned prostheses design and ideal implant placement. Guided surgery minimizes possible anatomical damage and allows for more reproducible treatment planning. In this case, the operation time was shortened by using a surgical guide for multiple implants placement in a fully edentulous patient. Immediate loading were performed more easily using preliminary preparation of provisional prosthesis. The patient was satisfied with improved esthetics and chewing function.

Immediate loading of mandibular single implant by using surgical guide and modeless digital prosthesis: a case report (수술용 가이드와 modeless 디지털 보철물을 이용한 하악 구치부 단일 임플란트 즉시 하중 증례)

  • Lim, Hyun-jeong;Kim, Myung-Joo;Kwon, Ho-Beom;Lim, Young-Jun
    • Journal of Dental Rehabilitation and Applied Science
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    • v.33 no.4
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    • pp.299-306
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    • 2017
  • In this case report, immediate loading of an implant-supported single-tooth prosthesis through complete digital workflow. A patient presented for restoration of missing a single tooth in the mandibular first molar. The digital impression was made with intraoral scanner and implant was placed using surgical guide pre-fabricated with pre-operative computed tomography (CT) and scan data. After 1 week later, prefabricated customized abutment and provisional restoration were connected for immediate loading. After 8 weeks later, abutment level impression was taken by intraoral scanner. At 3 months later from implant installation, monolithic zirconia crown were fabricated. This clinical report presents satisfying result in accuracy and patient satisfaction. A completely modeless digital procedure met expectations regarding precision, esthetics, and functionality.