Digitized thermo-responsive shape memory matrix band for tooth restorations

Abstract Direct resin restoration has been widely used to restore the tooth defect for its convenience and minimal invasion. However, the accuracy of the final contour of class II restoration is often unpredictable and quite technique-sensitive due to the limitation of traditional matrix band system...

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Main Authors: Chao Liu, Qin Huang, Bin Feng, Guanchen Ye, Yu Wang, Tianer Zhu, Junjie Wu, Lining Lin, Dongqi You, Haiping Yang, Weifang Zhang
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-025-85459-4
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author Chao Liu
Qin Huang
Bin Feng
Guanchen Ye
Yu Wang
Tianer Zhu
Junjie Wu
Lining Lin
Dongqi You
Haiping Yang
Weifang Zhang
author_facet Chao Liu
Qin Huang
Bin Feng
Guanchen Ye
Yu Wang
Tianer Zhu
Junjie Wu
Lining Lin
Dongqi You
Haiping Yang
Weifang Zhang
author_sort Chao Liu
collection DOAJ
description Abstract Direct resin restoration has been widely used to restore the tooth defect for its convenience and minimal invasion. However, the accuracy of the final contour of class II restoration is often unpredictable and quite technique-sensitive due to the limitation of traditional matrix band system. In this study, the authors developed a novel matrix band system using shape memory polymer (SMP), which possessed two reversible shapes including digitized permanent shape to reproduce anatomical proximal contour and programmable temporary shape for clinical practice and reservation. The permanent shape could be designed and customized in software or retrieved from imaging database collected from large general population. Only warm saline or water was needed to trigger the shape transformation without any auxiliary tools. The results of in vitro class II restoration showed the shape memory matrix bands brought the best proximal profile and contact point, compared to traditional metal matrix and sectional matrix. The novel shape memory matrix system represents the comfortable, precise, and minimally invasive trend of dentistry and has a broad industrialization prospect as a dental instrument.
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publishDate 2025-01-01
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spelling doaj-art-b6a2f33f3ee446a0943dab196c2c08e92025-01-26T12:32:28ZengNature PortfolioScientific Reports2045-23222025-01-011511810.1038/s41598-025-85459-4Digitized thermo-responsive shape memory matrix band for tooth restorationsChao Liu0Qin Huang1Bin Feng2Guanchen Ye3Yu Wang4Tianer Zhu5Junjie Wu6Lining Lin7Dongqi You8Haiping Yang9Weifang Zhang10Stomatology Hospital, School of Stomatology, Zhejiang University School of MedicineStomatology Hospital, School of Stomatology, Zhejiang University School of MedicineStomatology Hospital, School of Stomatology, Zhejiang University School of MedicineStomatology Hospital, School of Stomatology, Zhejiang University School of MedicineStomatology Hospital, School of Stomatology, Zhejiang University School of MedicineStomatology Hospital, School of Stomatology, Zhejiang University School of MedicineStomatology Hospital, School of Stomatology, Zhejiang University School of MedicineStomatology Hospital, School of Stomatology, Zhejiang University School of MedicineStomatology Hospital, School of Stomatology, Zhejiang University School of MedicineStomatology Hospital, School of Stomatology, Zhejiang University School of MedicineStomatology Hospital, School of Stomatology, Zhejiang University School of MedicineAbstract Direct resin restoration has been widely used to restore the tooth defect for its convenience and minimal invasion. However, the accuracy of the final contour of class II restoration is often unpredictable and quite technique-sensitive due to the limitation of traditional matrix band system. In this study, the authors developed a novel matrix band system using shape memory polymer (SMP), which possessed two reversible shapes including digitized permanent shape to reproduce anatomical proximal contour and programmable temporary shape for clinical practice and reservation. The permanent shape could be designed and customized in software or retrieved from imaging database collected from large general population. Only warm saline or water was needed to trigger the shape transformation without any auxiliary tools. The results of in vitro class II restoration showed the shape memory matrix bands brought the best proximal profile and contact point, compared to traditional metal matrix and sectional matrix. The novel shape memory matrix system represents the comfortable, precise, and minimally invasive trend of dentistry and has a broad industrialization prospect as a dental instrument.https://doi.org/10.1038/s41598-025-85459-4
spellingShingle Chao Liu
Qin Huang
Bin Feng
Guanchen Ye
Yu Wang
Tianer Zhu
Junjie Wu
Lining Lin
Dongqi You
Haiping Yang
Weifang Zhang
Digitized thermo-responsive shape memory matrix band for tooth restorations
Scientific Reports
title Digitized thermo-responsive shape memory matrix band for tooth restorations
title_full Digitized thermo-responsive shape memory matrix band for tooth restorations
title_fullStr Digitized thermo-responsive shape memory matrix band for tooth restorations
title_full_unstemmed Digitized thermo-responsive shape memory matrix band for tooth restorations
title_short Digitized thermo-responsive shape memory matrix band for tooth restorations
title_sort digitized thermo responsive shape memory matrix band for tooth restorations
url https://doi.org/10.1038/s41598-025-85459-4
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