一类洞纳米树脂充填修复的临床观察OA

Objective:To explore the restoration effect and chewing function recovery of patients with Class I dental caries treated with nano resin filling,and provide a basis for the selection of restoration plans for Class I dental caries in primary hospitals.Method:The clinical data of 301 patients with dental caries(301 teeth)who received nano-resin filling treatment in the Department of Stomatology,Chengxiang District Hospital of Putian City from October 2023 to October 2025 were retrospectively analyzed,including 163 females and 138 males.The marginal fitness,anatomical morphology,and surface texture of the restoration were evaluated by modified USPHS criteria before treatment and 6,12,and 24 months after treatment.The masticatory function was evaluated by masticatory efficiency,and the dentin sensitivity was evaluated by visual analogue scale(VAS).The complications such as secondary caries and restoration loss were recorded.Result:There was no significant difference in age,location and degree of caries between male and female patients(P>0.05).At 6,12,and 24 months after treatment,the excellent and good rates of marginal fitness,anatomical morphology,and surface texture of the prosthesis were all above 92%,and there was no significant difference between different time points(P>0.05).At 24 months after treatment,the masticatory efficiency was higher than that before treatment,and the dentin hypersensitivity VAS score was lower than that before treatment,with statistically significant differences(P<0.05).The occlusal function evaluation showed that the excellent and good rate of occlusal function recovery was 98.67%at 24 months after treatment.During the follow-up period of 24 months,there were 6 cases(1.99%)of secondary caries,9 cases(2.99%)of microleakage of the filling body,and no cases of breakage or fracture of the filling body.Conclusion:Nano resin filling therapy can maintain good restoration stability and chewing function in the treatment of Class I dental caries,with a low incidence of complications,simple operation,and no need for special instruments.It is an ideal solution for treating Class I dental caries in primary hospitals.