Effect Of Different Restoration Methods On The Restoration Of Large Defects Of Deciduous Molars

Objective:To investigate the clinical effects of different restoration methods on extensive defect of primary molars.Methods:a total of 150 deciduous molars were selected and randomly divided into three groups:A,B and C.Group A was repaired with glass ionomer and compound resin,B group was repaired by Hall technique,and C group was repaired with metal preformed crown.The successful rate of restoration in 6 and 12 months was compared between the three groups.Results:there was no significant difference between three groups in A,B and C(P>0.05);the successful rate of 12 months repair in group B and C was significantly higher than that in group A(P<0.05).Conclusion:HALL technique and metal crown significant repair effect of deciduous molar defect repair,the long-term success rate is higher than the glass ionomer and composite resin,and can be accepted by children and their parents,and is worthy of popularization in clinic.