@inproceedings{d670cbc6c7624b1ea9fca78cc44ac645,
title = "Experimental studies of composite shrinkage of dental restorations",
abstract = "Dental composites are light-curable resin-based materials with an inherent defect of polymerization shrinkage which may cause tooth deflection and debonding of restorations. The shrinkage behaviors of dental composites under four different light curing regimens were investigated by using digital image correlation (DIC) method. Experimental results showed that the shrinkage in unbonded restorations has the greatest shrinkage strain on the top surface. The bonded restorations did not show a typical centripetal shrinkage patterns as their unbonded restorations, and had greater downward displacements. Vertical curing at regular intensity caused the greatest shrinkage strain. Low-intensity curing reduced overall shrinkage at cervical margin, but did not prevent debonding after storage. Oblique curing caused asymmetric shrinkage with less deformation at tooth-shielded side and reduced shrinkage due to the attenuated polymerization rate rather than guided shrinkage direction. This studies may provide useful information for clinical usage, and further stress analysis by numerical methods.",
author = "Chuang, {Shu Fen} and Huang, {Pin Sheng} and Chen, {Terry Yuan Fang} and Huang, {Lo Hao} and Su, {Ko Chih} and Chang, {Chi Han}",
note = "Funding Information: Acknowledgements This study was supported by Research Grant NSC-101-2320-B006-003-MY3 from the National Science Council, Taiwan. Publisher Copyright: {\textcopyright} Springer Nature Singapore Pte Ltd. 2018.; 6th International Conference on the Development of Biomedical Engineering in Vietnam, BME 2016 ; Conference date: 27-06-2016 Through 29-06-2016",
year = "2018",
doi = "10.1007/978-981-10-4361-1_11",
language = "English",
isbn = "9789811043604",
series = "IFMBE Proceedings",
publisher = "Springer Verlag",
pages = "65--68",
editor = "{Vo Van}, Toi and {Nguyen Le}, {Thanh An} and {Nguyen Duc}, Thang",
booktitle = "6th International Conference on the Development of Biomedical Engineering in Vietnam, BME6",
address = "Germany",
}