Dental plaque-inspired versatile nanosystem for caries prevention and tooth restoration  

作　　者：Yue Xu Yuan You Luyao Yi Xiaoyi Wu Yaning Zhao Jian Yu He Liu Ya Shen Jingmei Guo Cui Huang 

机构地区：[1]The State Key Laboratory Breeding Base of Basic Science of Stomatology(Hubei-MOST)&Key Laboratory for Oral Biomedical Ministry of Education,School&Hospital of Stomatology,Wuhan University,Wuhan,China [2]Division of Endodontics,Faculty of Dentistry,The University of British Columbi1,Canada

出　　处：《Bioactive Materials》2023年第2期418-433,共16页生物活性材料（英文）

基　　金：supported by the National Natural Science Foundation of China(No.82001106,81970918,81901043).

摘　　要：Dental caries is one of the most prevalent human diseases resulting from tooth demineralization caused by acid production of bacteria plaque.It remains challenges for current practice to specifically identify,intervene and interrupt the development of caries while restoring defects.In this study,inspired by natural dental plaque,a stimuli-responsive multidrug delivery system(PMs@NaF-SAP)has been developed to prevent tooth decay and promote enamel restoration.Classic spherical core-shell structures of micelles dual-loaded with antibacterial and restorative agents are self-assembled into bacteria-responsive multidrug delivery system based on the pH-cleavable boronate ester bond,followed by conjugation with salivary-acquired peptide(SAP)to endow the nanoparticle with strong adhesion to tooth enamel.The constructed PMs@NaF-SAP specifically adheres to tooth,identifies cariogenic conditions and intelligently releases drugs at acidic pH,thereby providing antibacterial adhesion and cariogenic biofilm resistance,and restoring the microarchitecture and mechanical properties of demineralized teeth.Topical treatment with PMs@NaF-SAP effectively diminishes the onset and severity of caries without impacting oral microbiota diversity or surrounding mucosal tissues.These findings demonstrate this novel nanotherapy has potential as a promising biomedical application for caries prevention and tooth defect restoration while resisting biofilm-associated diseases in a controlled manner activated by pathological bacteria.

关 键 词：Biofilms Dental caries Micelles PEPTIDE Stimuli responsive polymers Tooth remineralization 

分 类 号：R780.2[医药卫生—口腔医学]