Evaluation of the Effects of Different Types of Adhesives on the Bonding Strength and Durability of Dentin
Objective Explore the effectiveness evaluation of different types of adhesives on the bonding strength and durability of dentin.Methods From June 2021 to June 2022,500 patients in the Department of Stomatology of the author's hospital were selected,and 500 complete and non-carious third molars were extracted for treatment.Using a random number table method,they were divided into observation group 1(166 particles),observation group 2(167 particles),and control group(167 particles).Observation group 1 used full acid etching adhesive,observation group 2 used two-step self acid etching adhesive,and control group used one-step self acid etching adhesive.Compare the bonding strength,dentin micro leakage,and fracture mode of different types of adhesives.Results The micro tensile bonding strength of dentin stored for 24 hours and 12 months in observation group 1 and observation group 2 was higher than that in control group.The micro tensile bonding strength of dentin stored for 12 months in observation group 1 and control group was lower than that stored for 24 hours(P<0.05).When stored for 24 hours and 12 months,the main mode of dentin fracture in each group was mixed fracture,and there was no significant difference in the mode of dentin fracture among the three groups at different storage times(P>0.05).The microleakage of dentin in observation group 1 and observation group 2 after storage for 24 hours and 12 months was lower than that in the control group.The microleakage of dentin in observation group 1 and observation group 2 after storage for 12 months was lower than that after storage for 24 hours,and observation group 1 was lower than observation group 2(P<0.05).Conclusion The bonding strength of the full acid etching adhesive and the two-step self acid etching adhesive is good.Over time,the bonding strength of the two-step self acid etching adhesive is still relatively high,and the durability of the full acid etching adhesive is relatively good.During the operation,suitable bonding agents can be selected according to the actual situation in clinical practice.