Socio-demographic characteristics : country of birth of child, age of mother, country of birth of mother, level of education of mother (INSEE classification), occupation of mother (INSEE classification), maternal employment status (INSEE classification) , father's age, father's country of birth, father's educational level (INSEE classification), father's occupation (INSEE classification), father's work status (INSEE classification), number of children, number of people in same home, sibling rank with cavities, , distance between home and hospital.

Parents' dental health knowledge : success score on a series of 7 questions about Oral Health Knowledge.

Parental self-efficacy in dental health : evaluating the feeling of self-efficacy using a pass score on a series of 10 oral health questions.

dental health behaviours of parents : success score on a series of 7 questions about oral health knowledge.

Insurance, use, cost of care and modalities/use of pediatric dental care : social assistance, history of dental consultations in cities, number of practitioners consulted, difficulties in finding appropriate dental care for children, reason for consultation, renunciation of dental care for parent or child and reason, type of health coverage, cost of care.

Number of children with early stage severe caries according to the criteria of the American Academy of Pediatric Dentistry