The aim of this thesis is to get to know the basic terms about people on the autism spectrum, and to describe the work procedures in working with an autistic person, during a stay in the hospital for the rehabilitation of a sick dental plate. Autism is a very complex neurodevelopmental disorder that affects all aspects of a child's personality (communication, motor skills, behaviour and learning). Autism belongs to the category of pervasive developmental disorders. Although diagnosing autism is not easy, it can be helped by medical history, clinical picture, observation of the child in different situations, psychological tests and various psychometric instruments. It is still not entirely clear what the causes autism. Some authors cite damage to the central nervous system, genetics, brain damage and mirror neuron disorders as possible causes. Autism is more common in boys than in girls. There are various therapeutic procedures and methods for people with autism, and some of them are: behavioural therapy, music therapy, art therapy, play therapy, kinesitherapy, holding therapy, daily life therapy, sensory integration therapy, various institutions, medications, etc. Professional help is needed not only for children with autism, but also for their parents.