According to the World Health Organization, around one in 160 children on Earth has an autism spectrum disorder, which usually becomes noticeable by the time a child reaches three years of age. These conditions can cause a child to have difficulty with language development and social interactions. While autism does not inherently cause any facial or dental differences, people with it can develop oral health problems due to unusual oral habits, poor food choices, or the side effects of medications. Here’s how to help your loved one with autism keep a lovely smile.