[The study on the enamel remineralization by enamel matrix proteins' inducing].

OBJECTIVE: To find the enamel matrix proteins on the impact of enamel mineralization through experiments. METHODS: A combination of protein and beneficial carboxyl groups was grafted on the surface of enamel defects of rats through UV radiation then put into the enamel matrix proteins of calcium phosphate agar acetate solution systems, through scanning enamel surface with the electron microscopy to observe the morphological changes of enamel then analyse the regulation that enamel matrix proteins have done to the white hydroxyapatite crystals on the composition and morphology. RESULTS: In the enamel matrix protein added gel system, we can see the growth of hydroxyapatite crystals, and crystal showed a good degree of crystallinity and contained a small amount of CO3(2-) substituted hydroxyapatite crystals. CONCLUSION: The temperature at 37 degrees C water bath, after adding the enamel matrix proteins to gel system, the new hydroxyapatite crystals were numerous which proved that enamel matrix proteins played an important role in nucleation and growth of hydroxyapatite crystal, so it could be indicated that enamel matrix proteins could induce the enamel remineralization.