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Amelogenesis imperfecta (AI) is caused by AMEL, ENAM, MMP20 and KLK4 gene mutations. Mice lacking expression of the AmelX, Enam and Mmp20 genes have been generated. These mouse models provide tools for understanding enamel formation and AI pathogenesis. This study describes the AI phenotypes and relates them to their mouse model counterparts. Human AI(More)
Matrix metalloproteinase 20 (MMP20) and kallikrein-related peptidase 4 (KLK4) are secreted proteinases that are essential for proper dental enamel formation. We characterized and compared enamel formed in wild-type, Mmp20 (-/-), Klk4 (-/-), Mmp20 (+/-) Klk4 (+/-), and Mmp20 (-/-) Klk4 (-/-) mice using dissecting and light microscopy, backscattered scanning(More)
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