Pyro-catalysis for tooth whitening via oral temperature fluctuation

Yang Wang; Shuhao Wang; Yanze Meng; Zhen Liu; Dijie Li; Yunyang Bai; Guoliang Yuan; Yaojin Wang; Xuehui Zhang; Xiaoguang Li; Xuliang Deng

doi:10.1038/s41467-022-32132-3

Pyro-catalysis for tooth whitening via oral temperature fluctuation

Nat Commun. 2022 Jul 29;13(1):4419. doi: 10.1038/s41467-022-32132-3.

Authors

Yang Wang¹, Shuhao Wang¹, Yanze Meng², Zhen Liu¹, Dijie Li¹, Yunyang Bai³, Guoliang Yuan¹, Yaojin Wang⁴, Xuehui Zhang^{5

6}, Xiaoguang Li⁷, Xuliang Deng^{8

9}

Affiliations

¹ School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu, China.
² Department of Dental Materials & Dental Medical Devices Testing Center, Peking University School and Hospital of Stomatology, Beijing, 100081, China.
³ Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, China.
⁴ School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu, China. yjwang@njust.edu.cn.
⁵ Department of Dental Materials & Dental Medical Devices Testing Center, Peking University School and Hospital of Stomatology, Beijing, 100081, China. zhangxuehui@bjmu.edu.cn.
⁶ National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, NMPA Key Laboratory for Dental Materials, Beijing Laboratory of Biomedical Materials & Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, 100081, China. zhangxuehui@bjmu.edu.cn.
⁷ Hefei National Laboratory for Physical Sciences at the Microscale, Department of Physics, and CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics University of Science and Technology of China, Hefei, 230026, China.
⁸ Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, China. kqdengxuliang@bjmu.edu.cn.
⁹ National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, NMPA Key Laboratory for Dental Materials, Beijing Laboratory of Biomedical Materials & Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, 100081, China. kqdengxuliang@bjmu.edu.cn.

Abstract

Tooth whitening has recently become one of the most popular aesthetic dentistry procedures. Beyond classic hydrogen peroxide-based whitening agents, photo-catalysts and piezo-catalysts have been demonstrated for non-destructive on-demand tooth whitening. However, their usage has been challenged due to the relatively limited physical stimuli of light irradiation and ultrasonic mechanical vibration. To address this challenge, we report here a non-destructive and convenient tooth whitening strategy based on the pyro-catalysis effect, realized via ubiquitous oral motion-induced temperature fluctuations. Degradation of organic dyes via pyro-catalysis is performed under cooling/heating cycling to simulate natural temperature fluctuations associated with intake and speech. Teeth stained by habitual beverages and flavorings can be whitened by the pyroelectric particles-embedded hydrogel under a small surrounding temperature fluctuation. Furthermore, the pyro-catalysis-based tooth whitening procedure exhibits a therapeutic biosafety and sustainability. In view of the exemplary demonstration, the most prevalent oral temperature fluctuation will enable the pyro-catalysis-based tooth whitening strategy to have tremendous potential for practical applications.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Catalysis
Hydrogen Peroxide
Temperature
Tooth Bleaching* / methods
Tooth*

Substances

Hydrogen Peroxide