To understand the psychological meanings attributed by dentists to the treatment of dental caries considering the frequent invasive treatment.

Clinical-qualitative method derived from qualitative designs proper to human sciences and applied in assistance settings. Sample composed of all available dentists (ten participants) within an area of basic health units of Piracicaba, Săo Paulo state. Semi-directed interview with open-ended questions, in-depth, was used. After full transcription of the interviews, qualitative content analysis was carried out, including floating readings to emerge core of meanings with consequent categorization for discussion.

Two categories show conflicts in the interpersonal relationship: psychological discomfort due to a perspective of care different from patient and presence of an ideologically vertical relationship. One category showed a successful approach: the patient through openness.

There were feelings of impotence in face of difficulties in interpersonal communication. It was possible to observe the influence of bio-power that weakens the possibility of empowering patients. In this way, a mechanical way of practice “saves” professionals from thinking about these human dilemmas. On the other hand, the liaison-consultation psychiatry, at primary care, allows dental professionals to have a personal affective support to rethink approaches on use of technology.

The authors have not supplied their declaration of competing interest.