Abstract Objective: To grasp the perceptions and experiences of professionals in the primary health care as teamwork in the Family Health Strategy (FHS) in a medium-sized municipality in the southern of Brazil. Method: Qualitative research carried out, between April and July 2016, with 13 health professionals (nurses, doctors, dentists, community health agents, nursing technicians and oral health aide) workers in FHS. Data were collected through semi-structured interviews, transcribed and submitted to content analysis. Results: From the analysis emerged three thematic categories: Teamwork from the perspective of the FHS health professionals; Strategies for maintaining teamwork out of daily routine; and Challenges of the insertion of Oral Health in the FHS. Conclusions and implications for a practice: Participants demonstrated that they understood the importance of teamwork and interpersonal relationships, and recognize the inherent challenges of this process. They revealed weaknesses in the relationships among dentistry and other members of the FHS, marked by a sense of exclusion and disinterest in participating.