Restoration of enamel anti-wear properties via remineralization: Role of occlusal loading  

作　　者：Jiapin PENG Lei LEI Heng XIAO Dan YANG Jing ZHENG Zhongrong ZHOU 

机构地区：[1]Tribology Research Institute,Key Laboratory of Advanced Technologies of Materials,Ministry of Education,Southwest Jiaotong University,Chengdu 610031,China

出　　处：《Friction》2022年第11期1838-1850,共13页摩擦（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(Nos.52035001,51675449,and 51535010);the 111 Project of China(No.B20008).

摘　　要：In this in vitro study,the restoration of acid-eroded enamel surface morphology and anti-wear properties under two conditions,mono-remineralization(treated with remineralization alone)and impact-remineralization(treated with cyclic impact followed by remineralization),are characterized to determine the effect of occlusal loading on enamel remineralization.Compared with the mono-remineralized surface,the impact-remineralized surface demonstrates better anti-wear performance,as manifested by a higher hardness and elastic modulus,as well as a lower friction coefficient and wear volume.Loading on the eroded enamel surface induces the fragmentation of hydroxyapatite nanoparticles,which aids crystal deposition and fusion during subsequent remineralization.In summary,owing to the enamel microstructure,occlusal loading can promote the restoration of enamel anti-wear properties by enhancing remineralization.Remineralization enhancement through occlusalloading-induced nanoparticle fragmentation plays a significant role in preventing human teeth from excessive wear.

关 键 词：human tooth enamel anti-wear properties REMINERALIZATION occlusal loading nanoparticle fragmentation 

分 类 号：TE624.82[石油与天然气工程—油气加工工程]