A Japanese startup, Toregram Biopharma, began human trials for a drug aimed at regrowing teeth, planning to market it by 2030. The drug targets a protein to stimulate tooth growth, initially tested successfully on mice and ferrets without serious side effects. A Japanese startup, Toregram Biopharma, began human trials for a drug aimed at regrowing teeth, planning to market it by 2030. The drug targets a protein to stimulate tooth growth, initially tested successfully on mice and ferrets without serious side effects. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle