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Restorative Space Analysis by Jaw Motion Tracking Using a Template in Completely Edentulous Patients

 Chol-Gwan Han  ;  Young-Bum Park  ;  June-Sung Shim  ;  Jong-Eun Kim 
 APPLIED SCIENCES-BASEL, Vol.11(9) : 3933, 2021-04 
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target tracking ; completely edentulous patient ; digital dentistry ; CAD/CAM ; complete removable denture ; vertical dimension ; restorative space analysis
Improvements in computer-aided design/computer-aided manufacturing technologies have led to multiple attempts being made to simplify and improve the workflow of prosthesis fabrication for completely edentulous patients. However, most attempts still involve the conventional methods of impression-making and recording the maxillomandibular relationships using alginate, rubber impression materials, and wax materials. In the case of a completely edentulous arch, the presence of movable tissues and the absence of stable landmarks make it difficult to perform direct digitization using an intraoral scanner and to digitally determine the vertical dimension. In the alternative technique described herein, data are obtained by scanning a template such as the patient’s existing old dentures and jaw movement data using target materials and an optical scanner, and an appropriate maxillomandibular relationship that has the desired restorative space is determined on the basis of the obtained trajectory of mandibular movements while opening and closing the mouth. After designing dentures on the basis of the newly established maxillomandibular relationships and performing a try-in process, the final dentures can be manufactured. This alternative technique can reduce the need for multiple visits and complex procedures, improving the workflow for fabricating prostheses with the correct maxillomandibular relationships for individual patients.
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2. College of Dentistry (치과대학) > Dept. of Prosthodontics (보철과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Jong Eun(김종은) ORCID logo https://orcid.org/0000-0002-7834-2524
Park, Young Bum(박영범)
Shim, June Sung(심준성) ORCID logo https://orcid.org/0000-0003-1428-0122
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