Various sealants have been developed to treat the exposure of dentinal tubules (DTs) and further dental hypersensitivity. Herein, the phosphate-terminated fourth generation polyamidoamine dendrimers (PAMAM-PO 3 H 2 ) was successfully synthesized. Six duplicates of demineralized dentin and type I collagen matrix were incubated in artificial saliva solution with or without PAMAM-PO 3 H 2 treatment at 37 C for 2 weeks, respectively. The artificial saliva solution was replaced every day. These regenerated crystals on the surface of dentin and collagen matrix were confirmed to be hydroxyapatite (HAp). The approach thus demonstrates that PAMAM-PO 3 H 2 can offer an efficient therapy for seal DTs in clinical dentistry.

Lithium-metal battery has revived increasing attention and research on account of the growing demands for high-energy electrical energy storage, but the unsatisfied cycling stability and service safety have greatly limited...

No abstract

No abstract