Effects of total-etch and self-etch bonding systems on pulp sensitivity and the incidence of long-term complications following resin filling of posterior teeth

doi:10.19439/j.sjos.2026.02.005

Abstract

Abstract: PURPOSE: To investigate the effects of total-etch and self-etch bonding systems on pulp sensitivity and the incidence of long-term complications following resin filling of posterior teeth. METHODS: A prospective cohort study was conducted. Eighty patients who underwent posterior dental resin filling from March 2023 to March 2025 were selected and randomly divided into the experimental group and the control group by random number table method, with 40 cases in each group. The control group was treated with total-etch bonding system, while the experimental group was treated with self-etch bonding system, with a follow-up period of 6 months. Clinical outcomes were compared between the two groups at 1 week and 6 months post-operation; pulp sensitivity indicators and chewing function were compared pre-operation, 1 week and 6 months post-operation;complications were statistically analyzed and compared at 1 week and 6 months post-operation. Results: One week post-operation, there was no significant difference in the scores of each item of the United States Department of Public Health standards (USPHS) between the two groups. Six months post-operation, the proportion of marginal adaptability, surface morphology, color matching, postoperative sensitivity, fracture and retention A grade in the experimental group was significantly higher than that in the control group(P<0.05). One week and 6 months post-operation, the temperature test response grading of the two groups was significantly higher than that pre-operation, and the experimental group was significantly lower than that of the control group(P<0.05). One week post-operation, there was no significant difference in the total incidence of complications between the two groups (P>0.05), six months post-operation, the overall complication rate in the experimental group was significantly lower than that in the control group (P<0.05). CONCLUSIONS: Self-etching and bonding 3M-Z350 nano-composite resin to fill teeth can effectively improve the therapeutic effect, reduce postoperative pulp sensitivity, enhance chewing function and have good interface sealing performance. The incidence of complications such as post-operation fillings and pulpitis pain is relatively low.

Key words: Postoperative pulp sensitivity, Posterior resin filling, Total-etch bonding, Self-etch bonding, Long-term complications

CLC Number:

R781.05

Yuan Yang, Zhang Weibo. Effects of total-etch and self-etch bonding systems on pulp sensitivity and the incidence of long-term complications following resin filling of posterior teeth[J]. Shanghai Journal of Stomatology, 2026, 35(2): 142-147.

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