CROCCP2 and amelogenesis imperfecta type 1G: The risk score model based on the nine ERS-related lncRNAs was constructed as follows: (−0.003 × expression of CROCCP2) + (−0.032 × expression of KIAA0125) + (0.033 × expression of LINC00857) + (−0.021 × expression of LINC00996) + (0.026 × expression of LINC01116) + (0.014 × expression of RP11-21L23.2) + (0.002 × expression of RP11-295G20.2) + (−0.020 × expression of RPARP-AS1) + (−0.004 × expression of TBX5-AS1).