The Family Health Strategy (FHS) in Brazil has employed multidisciplinary teams, precisely for this health care model to allow linking knowledge in the provision of care. OBJECTIVE: This study's objective was to investigate the perceptions of physicians, nurses, and dentists concerning the functioning of multidisciplinary family health teams in the municipality (county) of Coari, Amazonas State, Brazil. METHODS: This was a qualitative study with a semi-structured questionnaire applied through individual interviews with all the primary care professionals in the municipality, compared to interviews with physical therapists and psychologists from secondary care services, analyzed through dialectic hermeneutics. RESULTS: Except for the psychologists' discourse, the perceptions by physicians and other family health professionals revealed weaknesses in the development of a joint intervention project, particularly necessary for the FHS, thereby revealing that multidisciplinary teamwork only occurs in theory and not according to the underlying logic of the work process in family health care.