The application of polydopamine (PDA)-modified titanium dioxide nanoparticles (nano-TiO₂@PDA) as a new blue-light-activated tooth whitening material was discussed for the first time. Compared with the classical clinical whitening agent (peroxide, hydrogen peroxide, and carbamide peroxide), nano-TiO₂@PDA-based treatment not only had a similar whitening effect but also showed remarkably less damage on the enamel structure. Essentially, a highly effective and nondestructive tooth whitening treatment could thus be realized accordingly. The toxicity and antibacterial properties of this material were also evaluated systematically.

中文翻译：

---

蓝光活化纳米TiO ₂ @PDA可实现高效无损牙齿美白

首次讨论了聚多巴胺（PDA）改性的二氧化钛纳米颗粒（nano-TiO ₂ @PDA）作为一种新型的蓝光活化牙齿增白材料的应用。与传统的临床增白剂（过氧化物，过氧化氢和过氧化脲）相比，纳米TiO ₂ @PDA基处理不仅具有相似的增白效果，而且对牙釉质结构的损害也明显更少。因此，本质上，因此可以实现高效且无损的牙齿增白治疗。还对该材料的毒性和抗菌性能进行了系统评估。