The effect of bioactive glass combined with Er laser desensitizing treatment on the bond strength of nanometer resin to dentin
WANG Jie
YANG Jia-jia
CHEN Ya-ming
Abstract：AIM:To evaluate the effect of bioactive glass(BG)combined with Er laser desensitizing treat-ment on the bonding strength of dentin to nanometer resin.METHODS:The occlusal surface of 55 extracted teeth was flattened and adequate area of dentin was exposed and etched with 0.5 mol/L EDTA.The samples were randomly di-vided into 5 groups(n =1 1 ):Group A(without treatment as control),B(treated with BG),C(treated with Er,Cr:YSGG laser irradiation),D(BG followed by Er,Cr:YSGG laser irradiation)and E(Er,Cr:YSGG laser irradiation fol-lowed by BG).All the treated surfaces were bonded to nanometer resin.The shear bond strength was measured and da-ta was analyzed by SPASS 1 7.0 statistic software.The dentin surface after treatment was observed by SEM. RESULTS:The shear bond strength did not change after Er laser irradiation (P >0.05),but reduced in other groups (P <0.05)In the treated samples dentinal tuble orifice was blocked to some extent.CONCLUSION:The combina-tion of bioactive glass and Er laser desensitizing treatment may reduce the bond strength of dentine to nanometer resin.
Keywords：bioactive glassErCr:YSGG laserdesensitizingshear bond strength
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 35-38,54 )