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表观遗传是指DNA序列不发生变化，基因的表达方式发生了可遗传改变的一种遗传方式，主要包括DNA甲基化、组蛋白修饰和非编码RNA调控等。在牙发育过程中，传统基因调控与表观遗传学调控共同参与协同，调节细胞增殖分化相关基因的时空表达。探索牙发育过程中的表观遗传调控机制，可为牙再生提供线索和思路，本文主要对表观遗传调控在牙发育中的作用进行综述。“,”Epigenetics refers to genetic regulation patterns that gene expressions, which lead to the phenotype variance, are modified in the absence of changes of DNA sequence. Epigenetics mainly includes DNA methylation, histone modification, and non-coding RNA regulation. During the development of the teeth, conventional gene regulation and epigenetics synergistically regulate the spatial and temporal expression of genes, which involved in cell proliferation, differentiation and finally the formation of teeth. Exploration of the epigenetic regulation mechanisms during tooth development can provide multiple clues and ideas for the research of tooth regeneration. This article reviewed the significant roles of epigenetic regulation in tooth development.