In vitro study on the fluoridation of deciduous enamel by three fluoride varnishes
YAN Yuan
ZHAO Xin-yi
JIANG Yue-gui
WANG Wan-shan
SHI Xin
Abstract：AIM:To evaluate the fluoridation of deciduous enamel by three fluoride varnishes in vitro. METHODS:1 17 deciduous incisors were used and the labial enamel surface of each incisor was divided into two are-as.2 experimental fluoride varnishes (No.1 and No.2)and a commercial one (Duraphat)were respectively applied on one area and the other area had no treatment (control).After 12 ,24 ,and 48 h respectively,fluoride varnish coating was removed and the fluoride content of the enamel surfaces of all sampes was tested with the method of acid etched micro-sampling (n=90)and energy-dispersive spectrometry (n=27).Data were statistically analysed.RE-SULTS:The data of both methods showed that the fluoride content of all enamel were increased after applying fluoride varnish (P<0.05).After fluoride varnish application for 24 and 48 h,the fluoridation efficacy of No.1 and No.2 was superior to that of Duraphat (P<0.05).For No.1 and No.2,the fluoridation of 24 h and 48 h group was greater than that of 12 h group (P <0.05 ).Druaphat group showed no significant difference among different time points (P>0.05).CONCLUSION:The three fluoride varnishes can increase the fluoride content of deciduous enamel after application for 12 h.No.1 and No.2 varnishes can further increase the fluoride contents after 24 h and 48 h of applic-tion.
Keywords：deciduous teethfluoride varnishfluoride content of enamelacid etched micro-samplingenergy-dispersive spectrometry
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 314-317,328 )