J Adhes Dent. 2024 Sep 17;26:213-222. doi: 10.3290/j.jad.b5749506.
To evaluate the long-term microtensile bond strength (µTBS) to dentin, water sorption (WSP) and solubility (WSL), and degree of conversion (DC) of self-adhesive resin composites (SACs).
The mid-coronal dentin of human molars was exposed, and teeth were randomly assigned to five groups according to the SACs (n = 10): 1. FIT SA F03 (FIT); 2. Experimental (EXP); 3. Fusio Liquid Dentin (FLD); 4. Vertise Flow (VER); 5. Constic (CON). The µTBS was evaluated after 24 hours (24 h) and 6 months (6 m) storage. A scanning electron microscope examined failure modes and resin-dentin interfaces. The WSP and WSL (n = 5) were evaluated following ISO 4049:2019 specifications, and DC (n = 3) was measured using Raman spectroscopy. The statistical analyses were performed accepting a significance level of p = 0.05.
FIT, EXP, and FLD produced significantly higher µTBS median values than VER and CON after 24 h and 6 m (p 0.05). After 6m, the µTBS median of FIT and EXP significantly decreased (p 0.05), while FLD, VER, and CON showed no significant difference (p > 0.05). FLD and CON exhibited lower WSP than FIT, EXP, and VER (p 0.05). FLD presented the lowest (p 0.05), and VER revealed the highest WSL (p 0.05). FIT and EXP showed the highest (p 0.05), and VER demonstrated the lowest DC (p 0.05).
Following the present study's design, SACs' bonding performance and physical properties remained restricted. Therefore, the application should be considered cautiously, and further clinical trials are necessary to evaluate their long-term performance.
评估自粘接树脂复合材料（SACs）的长期微拉伸粘接强度（µTBS）、水分吸湿性（WSP）和溶解度（WSL）以及转化率（DC）。
暴露人磨牙的近中牙本质，根据 SACs 将牙齿随机分为五组（n = 10）：1. FIT SA F03（FIT）；2. 实验组（EXP）；3. Fusio Liquid Dentin（FLD）；4. Vertise Flow（VER）；5. Constic（CON）。24 小时（24 h）和 6 个月（6 m）储存后评估 µTBS。扫描电子显微镜检查失效模式和树脂-牙本质界面。根据 ISO 4049：2019 规范评估 WSP 和 WSL（n = 5），并使用拉曼光谱测量 DC（n = 3）。接受 p = 0.05 的显著性水平进行统计分析。
在 24 h 和 6 m 时，与 VER 和 CON 相比，FIT、EXP 和 FLD 产生的 µTBS 中值显著更高（p 0.05）。6 m 后，FIT 和 EXP 的 µTBS 中值显著降低（p 0.05），而 FLD、VER 和 CON 则无显著差异（p > 0.05）。FLD 和 CON 的 WSP 低于 FIT、EXP 和 VER（p 0.05）。FLD 最低（p 0.05），VER 最高 WSL（p 0.05）。FIT 和 EXP 显示出最高的（p 0.05），而 VER 则显示出最低的 DC（p 0.05）。
根据本研究设计，SACs 的粘结性能和物理性能仍然受到限制。因此，应谨慎考虑其应用，需要进一步的临床试验来评估其长期性能。
