Regular brushing twice a day leads to good oral health. But the benefits go beyond making fewer trips to the dentist. Two-and-a-half years ago, a student at Catlin Gabel school decided to take that message -- and dental supplies -- to children in remote corners of the globe. A story on an India website in 2016 caught then sophomore Avi Gupta's eye. Forty-nine children at a government-run orphanage were forced to use the same toothbrush.