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Amezua X, Erkizia G, Jauregi M, Solaberrieta E. Creating three-dimensional virtual patients by superimposing intraoral and facial digital scans guided with an aligner system: A dental technique. J Prosthet Dent 2024; 131:781-786. [PMID: 36328824 DOI: 10.1016/j.prosdent.2022.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/05/2022] [Accepted: 09/06/2022] [Indexed: 11/07/2022]
Abstract
A technique for creating 3-dimensional virtual patients (3DVPs) by superimposing intraoral and facial digital scans guided with a novel aligner system is described. This aligner system supports design modifications to adapt to different facial scanning methods (FSMs) and reduce the impact of FSMs on the accuracy of 3DVPs. Two different designs of the aligner system are described: one for use with less-accurate FSMs and another for use with more-accurate FSMs. These virtual designs are available for download and use.
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Affiliation(s)
- Xabier Amezua
- Research Assistant, Department of Graphic Design and Engineering Projects, Faculty of Engineering Gipuzkoa, University of the Basque Country UPV/EHU, San Sebastian, Spain
| | - Gaizka Erkizia
- Assistant Professor, Department of Graphic Design and Engineering Projects, Faculty of Engineering Bilbao, University of the Basque Country UPV/EHU, Bilbao, Spain
| | - Mikel Jauregi
- Associate Professor, Department of Mechanical Engineering, Faculty of Engineering Gipuzkoa, University of the Basque Country UPV/EHU, San Sebastian, Spain
| | - Eneko Solaberrieta
- Associate Professor, Department of Graphic Design and Engineering Projects, Faculty of Engineering Gipuzkoa, University of the Basque Country UPV/EHU, San Sebastian, Spain.
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Tang W, Zhang H, Wang H, Li L. A digital technique of bone reduction for a maxillary full-arch implant-supported fixed dental prosthesis. J Prosthodont 2023. [PMID: 37811545 DOI: 10.1111/jopr.13782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/14/2023] [Accepted: 09/23/2023] [Indexed: 10/10/2023] Open
Abstract
When fabricating a maxillary full-arch implant-supported fixed dental prosthesis, it is often challenging to systematically reduce alveolar bone to create prosthetic space and hide the prosthesis-tissue junction. This article presents a digital technique that allows for precise bone reduction while simultaneously placing implants and interim prostheses. By using this technique, clinicians can perform surgical procedures in a systematic manner without compromising the functional or esthetic outcomes.
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Affiliation(s)
- Weimao Tang
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Hai Zhang
- Department of Restorative Dentistry, School of Dentistry, University of Washington, Seattle, Washington, USA
| | - Haozhe Wang
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Lei Li
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
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Luo S, Xu L, Zhang Z, Zhong L, He R. Four-dimensional digital design to prediction of the real-time functional rehabilitation in the esthetic zone. J Prosthet Dent 2023:S0022-3913(23)00282-2. [PMID: 37301640 DOI: 10.1016/j.prosdent.2023.04.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 04/07/2023] [Accepted: 04/11/2023] [Indexed: 06/12/2023]
Abstract
Recent developments in digital technology and materials have improved the accuracy and efficiency of tracking and recording mandibular motion, with various methods being described. The present article describes a digital workflow with complete and accurate 3-dimensional spatial trajectories of mandibular motion to direct the design of lingual restorations. The workflow allowed the lingual curvature of the restoration to conform with the distinctive trajectory of mandibular protrusion.
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Affiliation(s)
- Shuxin Luo
- Graduate student, Department of Prosthodontics, School of Stomatology, Hangzhou Normal University; and Department of Stomatology, Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang, PR China
| | - Lixia Xu
- Graduate student, Department of Prosthodontics, School of Stomatology, Hangzhou Normal University; and Department of Stomatology, Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang, PR China
| | - Zhuochen Zhang
- Graduate student, Department of Prosthodontics, School of Stomatology, Hangzhou Normal University; and Department of Stomatology, Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang, PR China
| | - Liangjun Zhong
- Professor, Department of Periodontics, School of Stomatology, Hangzhou Normal University; an Dean, Department of Stomatology, Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang, PR China
| | - Rui He
- Associate Professor, Department of Prosthodontics, School of Stomatology, Hangzhou Normal University; and Vice Dean, Department of Stomatology, Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang, PR China.
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Sun A, Feng X, Chen L, Gu X. Digital orthodontic extrusion system for complex crown-root fracture of anterior teeth: A technique report. J Prosthet Dent 2023:S0022-3913(23)00121-X. [PMID: 36964046 DOI: 10.1016/j.prosdent.2023.02.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 02/02/2023] [Accepted: 02/02/2023] [Indexed: 03/26/2023]
Abstract
Patients with traumatic dental injuries commonly present in clinical practice with complex crown-root fractures. Prosthodontic treatment of such patients may be unsuccessful because of the violation of the supracrestal tissue attachment, making their management challenging. Minor tooth movement is an effective solution to extruding the residual root but may require referral to an orthodontist. The purpose of this technique was to present a digital orthodontic system including a 3-dimensional virtual patient technique, a computer-aided design and computer-aided manufacture (CAD-CAM) resin facial veneer-retained pontic, and a zirconia post as an orthodontic appliance for tooth extrusion in the esthetic zone. This veneered pontic may also serve as an interim prothesis. The appliance provides a precise design for the direction and extent of orthodontic extrusion.
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Affiliation(s)
- Ao Sun
- Attending Faculty, Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Zhejiang, Hangzhou, PR China; Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, PR China
| | - Xiaoyan Feng
- Attending Faculty, Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Zhejiang, Hangzhou, PR China
| | - Li Chen
- Associate Professor, Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, PR China
| | - Xinhua Gu
- Professor, Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Zhejiang, Hangzhou, PR China.
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Hou X, Xu X, Zhao M, Kong J, Wang M, Lee ES, Jia Q, Jiang HB. An overview of three-dimensional imaging devices in dentistry. J ESTHET RESTOR DENT 2022; 34:1179-1196. [PMID: 35968802 DOI: 10.1111/jerd.12955] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 07/27/2022] [Accepted: 07/28/2022] [Indexed: 12/27/2022]
Abstract
OBJECTIVE To review four types of three-dimensional imaging devices: intraoral scanners, extraoral scanners, cone-beam computed tomography (CBCT), and facial scanners, in terms of their development, technologies, advantages, disadvantages, accuracy, influencing factors, and applications in dentistry. METHODS PubMed (National Library of Medicine) and Google Scholar databases were searched. Additionally, the scanner manufacturers' websites were accessed to obtain relevant data. Four authors independently selected the articles, books, and websites. To exclude duplicates and scrutinize the data, they were uploaded to Mendeley Data. In total, 135 articles, two books, and 17 websites were included. RESULTS Research and clinical practice have shown that oral and facial scanners and CBCT can be used widely in various areas of dentistry with high accuracy. CONCLUSION Although further advancement of these devices is desirable, there is no doubt that digital technology represents the future of dentistry. Furthermore, the combined use of different devices may bring dentistry into a new era. These four devices will play a significant role in clinical utility with high accuracy. The combined use of these devices should be explored further. CLINICAL SIGNIFICANCE The four devices will play a significant role in clinical use with high accuracy. The combined use of these devices should be explored further.
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Affiliation(s)
- Xingyu Hou
- The Conversationalist Club, School of Stomatology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Xiaotong Xu
- The Conversationalist Club, School of Stomatology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Menghua Zhao
- The Conversationalist Club, School of Stomatology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Jiawen Kong
- The Conversationalist Club, School of Stomatology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Mingchang Wang
- The Conversationalist Club, School of Stomatology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Eui-Seok Lee
- Department of Oral and Maxillofacial Surgery, Graduate School of Clinical Dentistry, Korea University, Seoul, Republic of Korea
| | - Qi Jia
- The Conversationalist Club, School of Stomatology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Heng Bo Jiang
- The Conversationalist Club, School of Stomatology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
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