Telehealth has been applied in the Unified Health System (SUS) as a tool for qualifying professionals and improving the healthcare provided to the population served by the system. The aim of the present study was to evaluate the impact of teleconsultations on the qualifications of the clinical approach of the oral health teams involved in primary health care (PHC) in the state of Rio Grande do Sul under the Telehealth Brazil Networks Programme. The sample population of the study was composed of 285 dentists and 132 oral health assistants belonging to the Family Health Teams. A chi-square test was used to investigate possible associations between the absolute number of teleconsultations performed and several independent variables, namely, gender, age, dental specialty, time since graduation, time working in the Family Health Strategy (FHS), employment status, type of training institution, familiarity with information technology, and work satisfaction at the health facility. The level of significance was p < 0.05. Use of the oral health teleconsultation service led to a reduction of more than 45% in the number of referrals to other levels of care. However, no significant association was found between the number of teleconsultations and the independent variables analysed. The use of teleconsultations proved to be a powerful tool for professional training, for increasing the effectiveness of PHC, and for improving the oral healthcare provided