Optimal Position of Attachment for Removable Thermoplastic Aligner on the Lower Canine Using Finite Element Analysis
Malocclusion is considered as a developmental disorder rather than a disease, and it may be affected by the composition and proportions of masseter muscle fibers. Orthodontics is a specialty of dentistry that deals with diagnosis and care of various irregular bite and/or malocclusion. Recent develop...
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MDPI AG
2020-07-01
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| Online Access: | https://www.mdpi.com/1996-1944/13/15/3369 |
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| author | Won-Hyeon Kim Kyoungjae Hong Dohyung Lim Jong-Ho Lee Yu Jin Jung Bongju Kim |
| author_facet | Won-Hyeon Kim Kyoungjae Hong Dohyung Lim Jong-Ho Lee Yu Jin Jung Bongju Kim |
| author_sort | Won-Hyeon Kim |
| collection | DOAJ |
| description | Malocclusion is considered as a developmental disorder rather than a disease, and it may be affected by the composition and proportions of masseter muscle fibers. Orthodontics is a specialty of dentistry that deals with diagnosis and care of various irregular bite and/or malocclusion. Recent developments of 3D scanner and 3D printing technology has led to the use of a removable thermoplastic aligner (RTA), which is widely used due to its aesthetic excellence, comfortableness, and time efficiency. However, orthodontics using only an RTA has lower treatment efficacy and accuracy due to the differing movement of teeth from the plan. In order to improve these disadvantages, attachments were used, and biomechanical analyses were performed with and without them. However, there is insufficient research on the movement of teeth and the transfer of load according to the attachment position and shape. Therefore, in our study, we aimed to identify the optimal shape and position of attachments by analyzing various shapes and positions of attachments. Through 3D finite element analysis (FEA), simple tooth shape and mandibular canine shape were extracted in order to construct the orthodontics model which took into account the various shapes and positions of attachments. The optimal shape of a cylinder was derived through the FEA of simple tooth shape and analyzing various positions of attachments on teeth revealed that fixing the attachments at the lingual side of the tooth rather than the buccal side allowed for torque control and an effective movement of the teeth. Therefore, we suggest fixing the attachments at the lingual side rather than the buccal side of the tooth to induce effective movement of teeth in orthodontic treatment with the RTA in case of canine teeth. |
| first_indexed | 2024-03-10T18:07:29Z |
| format | Article |
| id | doaj.art-8b261569361e4f2abe94cb4ccb537806 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T18:07:29Z |
| publishDate | 2020-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-8b261569361e4f2abe94cb4ccb5378062023-11-20T08:23:43ZengMDPI AGMaterials1996-19442020-07-011315336910.3390/ma13153369Optimal Position of Attachment for Removable Thermoplastic Aligner on the Lower Canine Using Finite Element AnalysisWon-Hyeon Kim0Kyoungjae Hong1Dohyung Lim2Jong-Ho Lee3Yu Jin Jung4Bongju Kim5Clinical Translational Research Center for Dental Science, Seoul National University Dental Hospital, Seoul 03080, KoreaSeethrough Tech. Corp., Seoul 06149, KoreaDepartment of Mechanical Engineering, Sejong University, Seoul 05006, KoreaDepartment of Oral and Maxillofacial Surgery, School of Dentistry, Seoul National University, Seoul 03080, KoreaResearch Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology, Ulsan 44412, KoreaClinical Translational Research Center for Dental Science, Seoul National University Dental Hospital, Seoul 03080, KoreaMalocclusion is considered as a developmental disorder rather than a disease, and it may be affected by the composition and proportions of masseter muscle fibers. Orthodontics is a specialty of dentistry that deals with diagnosis and care of various irregular bite and/or malocclusion. Recent developments of 3D scanner and 3D printing technology has led to the use of a removable thermoplastic aligner (RTA), which is widely used due to its aesthetic excellence, comfortableness, and time efficiency. However, orthodontics using only an RTA has lower treatment efficacy and accuracy due to the differing movement of teeth from the plan. In order to improve these disadvantages, attachments were used, and biomechanical analyses were performed with and without them. However, there is insufficient research on the movement of teeth and the transfer of load according to the attachment position and shape. Therefore, in our study, we aimed to identify the optimal shape and position of attachments by analyzing various shapes and positions of attachments. Through 3D finite element analysis (FEA), simple tooth shape and mandibular canine shape were extracted in order to construct the orthodontics model which took into account the various shapes and positions of attachments. The optimal shape of a cylinder was derived through the FEA of simple tooth shape and analyzing various positions of attachments on teeth revealed that fixing the attachments at the lingual side of the tooth rather than the buccal side allowed for torque control and an effective movement of the teeth. Therefore, we suggest fixing the attachments at the lingual side rather than the buccal side of the tooth to induce effective movement of teeth in orthodontic treatment with the RTA in case of canine teeth.https://www.mdpi.com/1996-1944/13/15/3369clear alignerattachmentoptimal positioningmandibular caninefinite element analysis |
| spellingShingle | Won-Hyeon Kim Kyoungjae Hong Dohyung Lim Jong-Ho Lee Yu Jin Jung Bongju Kim Optimal Position of Attachment for Removable Thermoplastic Aligner on the Lower Canine Using Finite Element Analysis Materials clear aligner attachment optimal positioning mandibular canine finite element analysis |
| title | Optimal Position of Attachment for Removable Thermoplastic Aligner on the Lower Canine Using Finite Element Analysis |
| title_full | Optimal Position of Attachment for Removable Thermoplastic Aligner on the Lower Canine Using Finite Element Analysis |
| title_fullStr | Optimal Position of Attachment for Removable Thermoplastic Aligner on the Lower Canine Using Finite Element Analysis |
| title_full_unstemmed | Optimal Position of Attachment for Removable Thermoplastic Aligner on the Lower Canine Using Finite Element Analysis |
| title_short | Optimal Position of Attachment for Removable Thermoplastic Aligner on the Lower Canine Using Finite Element Analysis |
| title_sort | optimal position of attachment for removable thermoplastic aligner on the lower canine using finite element analysis |
| topic | clear aligner attachment optimal positioning mandibular canine finite element analysis |
| url | https://www.mdpi.com/1996-1944/13/15/3369 |
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