Aesthetic Effect of 3M Bulk Resin Filling with Different Thicknesses on Class Ⅴ Cavities of Premolars
Objective To study the restoration effect and aesthetic effect of different thicknesses of 3M bulk resin filling in the treatment of class Ⅴ cavities of premolars.Methods 115 patients who received light-curing 3M bulk composite resin filling for class Ⅴ cavities of premolars in the hospital between June 2019 and June 2021 were selected as samples.The patients were numbered according to the order of treatment,and then they were divided into observation group(57 cases,92 affected teeth)and control group(58 cases,85 affected teeth)by the random number table method.The observation group adopted one-time filling restoration while the control group was treated with layered filling restoration.The restoration effect,marginal fit,periodontal health and appearance satisfaction were compared between the two groups.Results There were no significant differences in color coordination,marginal fit,surface morphology and secondary caries grading between the two groups(P＞0.05),and the satisfaction of edge coloring in observation group was higher than that in control group(P＜0.05).At 1,6 and 12 months after surgery,the restoration-to-tooth gap ratio in the two groups was significantly increased(P＜0.05),and the gap ratio in observation group was lower than that in control group at 1,6 and 12 months after surgery(P＜0.05).The probing depth(PD),attachment index(AL)and bleeding index(BI)were significantly decreased in both groups at 12 months after surgery(P＜0.05),and there were no statistical differences in PD,AL and BI between the two groups(P＞0.05).The score of color visual analogue scale(VAS)of the affected teeth in observation group at 12 months after surgery was significantly higher than that in control group(P＜0.05),but there was no statistical significance in the overall contour VAS score or surface morphology VAS score between the two groups(P＞0.05).Conclusion One-time filling in the treatment of class Ⅴ cavities of premolars with 3M bulk resin is beneficial to improving the restoration-to-tooth gap ratio,enhancing the marginal fit of restoration and improving the aesthetic effect,and its treatment effect has obvious advantages over layered filling.
万方数据
