Advanced eruption of teeth Early dental eruption Advanced tooth eruption Premature dental eruption Premature eruption of teeth UMLS:C0266054 Premature tooth eruption Premature tooth eruption, which can be defined as tooth eruption more than 2 SD earlier than the mean eruption age. Eruption, advanced Early eruption of teeth HP:0006317 Advanced dental eruption HP:0006288 SNOMEDCT_US:16000003 There are established norms for the timing of eruption in both deciduous and permanent teeth [Garn and Rohmann, [1966]; Lunt and Law, [1974]; McDonald et al. [2004]]. Eruption is defined by the appearance of a tooth that has pierced the gum. Abnormality of dental eruption