Automated tooth crown design with optimized shape and biomechanics properties
Despite the large demand for dental restoration each year, the design of crown restorations is mainly performed via manual software operation, which is tedious and subjective. Moreover, the current design process lacks biomechanics optimization, leading to localized stress concentration and reduced...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-11-01
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| Series: | Frontiers in Bioengineering and Biotechnology |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fbioe.2023.1216651/full |
| _version_ | 1797449268754120704 |
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| author | Xiaoxian Jin Shengfa Wang Jiangbei Hu Xiaowei Xu Yongji Shi Haishi Yu Jinwu Wang Kang Li Kang Li Xiaomin Cheng Moyu Shao Hongkai Wang Hongkai Wang |
| author_facet | Xiaoxian Jin Shengfa Wang Jiangbei Hu Xiaowei Xu Yongji Shi Haishi Yu Jinwu Wang Kang Li Kang Li Xiaomin Cheng Moyu Shao Hongkai Wang Hongkai Wang |
| author_sort | Xiaoxian Jin |
| collection | DOAJ |
| description | Despite the large demand for dental restoration each year, the design of crown restorations is mainly performed via manual software operation, which is tedious and subjective. Moreover, the current design process lacks biomechanics optimization, leading to localized stress concentration and reduced working life. To tackle these challenges, we develop a fully automated algorithm for crown restoration based on deformable model fitting and biomechanical optimization. From a library of dental oral scans, a conditional shape model (CSM) is constructed to represent the inter-teeth shape correlation. By matching the CSM to the patient’s oral scan, the optimal crown shape is estimated to coincide with the surrounding teeth. Next, the crown is seamlessly integrated into the finish line of preparation via a surface warping step. Finally, porous internal supporting structures of the crown are generated to avoid excessive localized stresses. This algorithm is validated on clinical oral scan data and achieved less than 2 mm mean surface distance as compared to the manual designs of experienced human operators. The mechanical simulation was conducted to prove that the internal supporting structures lead to uniform stress distribution all over the model. |
| first_indexed | 2024-03-09T14:22:29Z |
| format | Article |
| id | doaj.art-3573cb6ccf0e4ae6b851c70f864e9ca4 |
| institution | Directory Open Access Journal |
| issn | 2296-4185 |
| language | English |
| last_indexed | 2024-03-09T14:22:29Z |
| publishDate | 2023-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Bioengineering and Biotechnology |
| spelling | doaj.art-3573cb6ccf0e4ae6b851c70f864e9ca42023-11-28T09:20:57ZengFrontiers Media S.A.Frontiers in Bioengineering and Biotechnology2296-41852023-11-011110.3389/fbioe.2023.12166511216651Automated tooth crown design with optimized shape and biomechanics propertiesXiaoxian Jin0Shengfa Wang1Jiangbei Hu2Xiaowei Xu3Yongji Shi4Haishi Yu5Jinwu Wang6Kang Li7Kang Li8Xiaomin Cheng9Moyu Shao10Hongkai Wang11Hongkai Wang12School of Biomedical Engineering, Faculty of Medicine, Dalian University of Technology, Dalian, ChinaSchool of Software Technology, Dalian University of Technology, Dalian, ChinaSchool of Software Technology, Dalian University of Technology, Dalian, ChinaShandong Maier Medical Technology Co., Ltd., Rizhao, Shandong, ChinaShandong Maier Medical Technology Co., Ltd., Rizhao, Shandong, ChinaShandong Maier Medical Technology Co., Ltd., Rizhao, Shandong, ChinaShanghai Key Laboratory of Orthopedic Implant, Department of Orthopedic Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, ChinaWest China Biomedical Big Data Center, West China Hospital, Sichuan University, Chengdu, Sichuan, ChinaShanghai Artificial Intelligence Laboratory, Shanghai, ChinaJiangsu Yunqianbai Digital Technology Co., Ltd., Xuzhou, ChinaJiangsu Yunqianbai Digital Technology Co., Ltd., Xuzhou, ChinaSchool of Biomedical Engineering, Faculty of Medicine, Dalian University of Technology, Dalian, ChinaLiaoning Key Laboratory of Integrated Circuit and Biomedical Electronic System, Dalian, ChinaDespite the large demand for dental restoration each year, the design of crown restorations is mainly performed via manual software operation, which is tedious and subjective. Moreover, the current design process lacks biomechanics optimization, leading to localized stress concentration and reduced working life. To tackle these challenges, we develop a fully automated algorithm for crown restoration based on deformable model fitting and biomechanical optimization. From a library of dental oral scans, a conditional shape model (CSM) is constructed to represent the inter-teeth shape correlation. By matching the CSM to the patient’s oral scan, the optimal crown shape is estimated to coincide with the surrounding teeth. Next, the crown is seamlessly integrated into the finish line of preparation via a surface warping step. Finally, porous internal supporting structures of the crown are generated to avoid excessive localized stresses. This algorithm is validated on clinical oral scan data and achieved less than 2 mm mean surface distance as compared to the manual designs of experienced human operators. The mechanical simulation was conducted to prove that the internal supporting structures lead to uniform stress distribution all over the model.https://www.frontiersin.org/articles/10.3389/fbioe.2023.1216651/fullfull-crown restorationsstatistical shape modelconditional shape modelsupporting structure optimizationbiomechanical simulation |
| spellingShingle | Xiaoxian Jin Shengfa Wang Jiangbei Hu Xiaowei Xu Yongji Shi Haishi Yu Jinwu Wang Kang Li Kang Li Xiaomin Cheng Moyu Shao Hongkai Wang Hongkai Wang Automated tooth crown design with optimized shape and biomechanics properties Frontiers in Bioengineering and Biotechnology full-crown restorations statistical shape model conditional shape model supporting structure optimization biomechanical simulation |
| title | Automated tooth crown design with optimized shape and biomechanics properties |
| title_full | Automated tooth crown design with optimized shape and biomechanics properties |
| title_fullStr | Automated tooth crown design with optimized shape and biomechanics properties |
| title_full_unstemmed | Automated tooth crown design with optimized shape and biomechanics properties |
| title_short | Automated tooth crown design with optimized shape and biomechanics properties |
| title_sort | automated tooth crown design with optimized shape and biomechanics properties |
| topic | full-crown restorations statistical shape model conditional shape model supporting structure optimization biomechanical simulation |
| url | https://www.frontiersin.org/articles/10.3389/fbioe.2023.1216651/full |
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