Open AccessSimultaneous Photodynamic Eradication of Tooth Biofilm and Tooth Whitening with an Aggregation‐Induced Emission Luminogen
Author(s) -
Gu Meijia,
Jiang Susu,
Xu Xiaoyu,
Wu MingYu,
Chen Chao,
Yuan Yuncong,
Chen Qingrong,
Sun Yidan,
Chen Luojia,
Shen Chao,
Guo Peng,
Liu Shujie,
Zhao Engui,
Chen Shi,
Chen Sijie
Publication year - 2022
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.202106071
Subject(s) - biofilm , tooth whitening , hydrogen peroxide , dentistry , photosensitizer , streptococcus mutans , dentin , photodynamic therapy , chemistry , tooth discoloration , saliva , biocompatibility , microbiology and biotechnology , bacteria , medicine , biology , biochemistry , genetics , organic chemistry
Dental caries is among the most prevalent dental diseases globally, which arises from the formation of microbial biofilm on teeth. Besides, tooth whitening represents one of the fastest‐growing areas of cosmetic dentistry. It will thus be great if tooth biofilm eradication can be combined with tooth whitening. Herein, a highly efficient photodynamic dental therapy strategy is reported for tooth biofilm eradication and tooth discoloration by employing a photosensitizer (DTTPB) with aggregation‐induced emission characteristics. DTTPB can efficiently inactivate S. mutans , and inhibit biofilm formation by suppressing the expression of genes associated with extracellular polymeric substance synthesis, bacterial adhesion, and superoxide reduction. Its inhibition performance can be further enhanced through combined treatment with chlorhexidine. Besides, DTTPB exhibits an excellent tooth‐discoloration effect on both colored saliva‐coated hydroxyapatite and clinical teeth, with short treatment time (less than 1 h), better tooth‐whitening performance than 30% hydrogen peroxide, and almost no damage to the teeth. DTTPB also demonstrates excellent biocompatibility with neglectable hemolysis effect on mouse red blood cells and almost no killing effect on mammalian cells, which enables its potential applications for simultaneous tooth biofilm eradication and tooth whitening in clinical dentistry.