Abstract: 【Objective】 The purpose of this research was to determine the effects of mineralizing calcium phosphate-based solutions with zinc and fluoride ions treatment on enamel physical and chemical properties. 【Methods】 Enamel sections from adult molars were removed because treatment needed. The enamel surfaces were treated with mineralizing solution supersaturated with respect to F- or Zn-substituted calcium phosphates. According to different mineralized compositions

the enamel sections were divided into treatment groups of A

B

C and D

supplemented with solution of CaP-ZnF

CaP-F

CaP-Zn and CaP respectively

one control group of double distilled water (DDW).The untreated and treated enamel sections were characterized using scanning electron microscopy

X-ray diffraction and Fourier transform infrared spectroscopy. 【Results】 Enamel treated with mineralizing calcium phosphate-based solutions with zinc and fluoride ions showed presence of adherent coating consisting of aggregations of microcrystals. FT- IR demonstrated F alone doped apatite group or F and Zn doped apatite group caused an slight increase in the resolution of the PO4 absorption band (ν3 P-O) at 1102

1065

and 1027 cm-1 compared to the Zn doped apatite group or control group. 【Conclusion】Calcium phosphate solution with zinc and fluoride ions is the ideal mineralization solution for the enamel.