You read that correctly. A recent journal article in ACS Nano tells us that, in research, a layered, nano-sized dental film is responsive to bringing dead tooth pulp back to life. This is not science fiction; this truth is better than fiction. The miracle substance is called alpha melanocyte stimulating hormone (alpha-MSH), and when mixed with a common polymer, we get a dental film that attacks inflammation in the fibroblasts found in dental pulp. It’s like little superheroes fighting a life-or-death battle inside a tooth. The alpha-MSH nano-film  also increased the number of fibroblasts to help renew life in dental pulp. This amazing finding could mean no more root canals!
Source: MedicalNewsToday (Source: dental blog for dentists about dentistry)