Care for your own body, respectively, personal body hygiene and its regular maintenance are an integral part of every human's life. Parents are teaching us from our youngest ages about body hygiene maintenance and they tell us about its significance. Hygiene procedures allow us good health and a clean body. The emphasis was always on regular oral hygiene maintenance, that is, mouth hygiene, because teeth are a reflector of our health. The purpose of this graduate thesis is to question what are the hygiene habits of disciples of younger school-age whose emphasis is on the maintenance of oral hygiene, whether disciples maintain personal body hygene on their own or with the help of parents, whether their class is attended by disciples who don't have orderly developed hygene habits and also questioning the level of awareness of disciples about significance of the body and oral hygiene. As well, the purpose of this thesis is to study fully literature which refers to body hygiene, which includes oral hygiene. I conducted the research in the form of surveys at the Elementary School „Antun Gustav Matoš" Vinkovci in 3rd and 4th grade. In research have participated a total of 115 disciples, of which 50 were female disciples and 65 were male disciples. The surveys were conducted in written form and are completely anonymous. The first survey refers to personal body hygiene and contains ten questions, while the other survey refers to the oral hygiene of disciples and contains nine questions. The theoretical part of this thesis includes topics: personal hygiene, hygiene habits, oral hygiene, structure, development and dental illnesses, illnesses in young school children, means of oral hygiene, brushing teeth, tooth extraction, ozonation of teeth, dental examination, health education in the classroom teaching and the representation of hygiene in the textbooks of Nature and Society, and the empirical part of the thesis refers to results of surveys conducted at the Elementary School „Antun Gustav Matoš" Vinkovci on a sample of 115 disciples. Survey has shown how most of the disciples have orderly developed hygiene habits and are aware of the significance of maintaining health. A key role in the implementation of hygiene in children is played by parents, whose task is to ensure the implementation of proper body hygiene, as well as oral hygiene. Expect for the parents, teachers also have an important role. Through educational institutions, such as schools, children can be informed and encouraged to take care of their own health by the teachers.