RESUMO
Objective To study the effect of fissure sealant combined with fluorine-containing gel in the prevention of dental caries in children.Methods Totally 86 cases who came into our hospital for healthy check-up from June 2010 to June 2011 were slected,and they were divided into 3 groups according to a random number table.Children in fissure sealant group were given fissure sealant treatment,children in combined treatment group were given fluorine gel treatment in addition of fissure sealant,and children of the control group were given rou-tine oral care.Observed the caries average,adjacent surface caries and caries occurrence of the three groups,and observed the blocking agent of the fissure sealant group and the combined treatment group.Results Three years after the prophylactic treatment,the caries occurrence, adjacent surface caries and caries average of fissure sealant group and combined treatment group showed an obvious downward trend compared with those of the control group.But the caries occurrence,adjacent surface caries and caries average of combined treatment group were sig-nificantly lower than the fissure sealant group,with a statistically significant difference(P <0.05).In the follow-up of the first two years,the complete preservation rate of sealant in the combined treatment group was significantly higher than the fissure sealant group,while the partial and complete loss rate of sealant in the combined treatment group was significantly lower than the fissure sealant group,and the difference was statistically significant (P <0.05).Conclusion Fissure sealant combined with fluorine-containing gel in the prevention of dental caries in children can receive good results,and it is worth of promotion.