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学科主题: 口腔医学
题名:
A Method of Three-Dimensional Recording of Mandibular Movement Based on Two-Dimensional Image Feature Extraction
作者: Yuan, Fusong1,2,3,4; Sui, Huaxin1,2,3,4; Li, Zhongke5; Yang, Huifang1,2,3,4; Lu, Peijun1,2,3,4; Wang, Yong1,2,3,4; Sun, Yuchun1,2,3,4
刊名: PLOS ONE
发表日期: 2015-09-16
DOI: 10.1371/journal.pone.0137507
卷: 10, 期:9
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
英文摘要:

Background and Objective

To develop a real-time recording system based on computer binocular vision and two-dimensional image feature extraction to accurately record mandibular movement in three dimensions.

Methods

A computer-based binocular vision device with two digital cameras was used in conjunction with a fixed head retention bracket to track occlusal movement. Software was developed for extracting target spatial coordinates in real time based on two-dimensional image feature recognition. A plaster model of a subject′s upper and lower dentition were made using conventional methods. A mandibular occlusal splint was made on the plaster model, and then the occlusal surface was removed. Temporal denture base resin was used to make a 3-cm handle extending outside the mouth connecting the anterior labial surface of the occlusal splint with a detection target with intersecting lines designed for spatial coordinate extraction. The subject′s head was firmly fixed in place, and the occlusal splint was fully seated on the mandibular dentition. The subject was then asked to make various mouth movements while the mandibular movement target locus point set was recorded. Comparisons between the coordinate values and the actual values of the 30 intersections on the detection target were then analyzed using paired t-tests.

Results

The three-dimensional trajectory curve shapes of the mandibular movements were consistent with the respective subject movements. Mean XYZ coordinate values and paired t-test results were as follows: X axis: -0.0037 +/- 0.02953, P = 0.502; Y axis: 0.0037 +/- 0.05242, P = 0.704; and Z axis: 0.0007 +/- 0.06040, P = 0.952. The t-test result showed that the coordinate values of the 30 cross points were considered statistically no significant. (P<0.05)

Conclusions

Use of a real-time recording system of three-dimensional mandibular movement based on computer binocular vision and two-dimensional image feature recognition technology produced a recording accuracy of approximately +/- 0.1 mm, and is therefore suitable for clinical application. Certainly, further research is necessary to confirm the clinical applications of the method.

语种: 英语
所属项目编号: 51475004 ; 2013AA040802 ; YS0401
项目资助者: National Natural Science Foundation of China ; National High Technology Research and Development Program ("863" Program) of China ; Scientific Research Staring Foundation for the Returned Overseas Chinese Scholars, Peking University School and Hospital of Stomatology
WOS记录号: WOS:000361610200040
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/60291
Appears in Collections:北京大学口腔医学院_期刊论文

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作者单位: 1.Natl Engn Lab Digital & Mat Technol Stomatol, Beijing, Peoples R China
2.Peking Univ Sch & Hosp Stomatol, Ctr Digital Dent, Beijing, Peoples R China
3.Peking Univ Sch & Hosp Stomatol, Fac Prosthodont, Beijing, Peoples R China
4.Minist Hlth, Res Ctr Engn & Technol Digital Dent, Beijing, Peoples R China
5.Second Artillery Engn Coll, Xian, Peoples R China

Recommended Citation:
Yuan, Fusong,Sui, Huaxin,Li, Zhongke,et al. A Method of Three-Dimensional Recording of Mandibular Movement Based on Two-Dimensional Image Feature Extraction[J]. PLOS ONE,2015,10(9).
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