Dentacoin develops and promote different tools to improve dental health. They have an app named Dentacare, a survey platform, a platform of reviews of dentist and a proyect of dental insurance. They promote the use of this apps and platforms by rewarding patients and dentist with dentacoins. This token can be trade in many exchanges. I use hitBTC for buying DCN. You can buy it directly from his site using crédito card with a minimun amount of 30 USD.