Comparative Study on the Cosmetic Effect and Sensitivity Between Two Different Nano-composite Resins in Cosmetic Restoration of Anterior Teeth
Objective The purpose of this study was to compare the cosmetic effect and sensitivity between two different nano-composite resins in cosmetic restoration of anterior teeth.Methods A total of 100 patients who underwent cosmetic restoration of anterior teeth in the hospital from May 2018 to 2022 were selected,and divided into the control group and the observation group according to the random number table method with 50 patients in each group.The control group underwent cosmetic restoration with 3M-Z100 nano-composite resin,while the observation group underwent cosmetic restoration with 3M-Z350 nano-composite resin.The cosmetic effect,tooth sensitivity,Numerical Rating Scale(NRS)score,gingival index(GI),probing depth(PD),plaque index(PLI)and tooth mobility degree(MD)were compared between the two groups.Results On day 1 after restoration,color coordination in the observation group was significantly higher(P<0.05).At 3 months after restoration,marginal fitness and color coordination in the observation group were significantly higher(P<0.05).The incidence of tooth sensitivity in the observation group was significantly lower on day 1,at 1 week and 1 month after restoration(P<0.05).The incidence of tooth sensitivity showed no statistically significant difference between the groups at 3 months after restoration(P>0.05).Toothache scores of the two groups were significantly lower at 1 week,1 month and 3 months after restoration than on day 1 after restoration(P<0.05).The observation group had significantly lower toothache scores on day 1,at 1 week and 1 month after restoration(P<0.05),but there was no statistically significant difference between the groups at 3 months after restoration(P>0.05).GI,PLI and MD of the restored teeth in the observation group were significantly lower than those in the control group(P<0.05).Conclusion Both of 3M-Z100 nano-composite resin and 3M-Z350 nano-composite resin can be used for cosmetic restoration of anterior teeth.However,the latter can achieve better cosmetic effect,and the incidence of tooth sensitivity is significantly lower.