DescritoresTo evaluate the long-term effects of voice therapy on the life quality of teachers who were discharged or abandoned the voice therapy for dysphonia. Methods: This was a longitudinal study based on analysis of assessments with teachers of municipal schools in Belo Horizonte, who were referred to voice therapy and were discharged or abandoned the speechlanguage therapy for more than six months. A total of 33 teachers in the discharged group and 20 teachers in the abandoned group were contacted by phone and invited to participate in the study by answering the Voice activity and participation profile, which was forwarded to the researchers and sent via letter. Results: At the moment of the pre speech therapy, the discharged and abandoned groups were homogeneous, except in relation to daily communication parameter. Comparing the discharged group in the pre and post speech-language therapy, it was showed improvements in social communication parameter as well as in the total score. The discharged group presented worsening in self-perception parameter when comparing the average values in the post therapy and current moments, and the group abandoned presented worsening in work, social communication and total score when comparing to the average values in the pre therapy and current moments. The discharged and abandoned groups differ in the present moment in all investigated parameters. Conclusion: Speech-language therapy for dysphonia have long term positive effects on life quality and voice of teachers who were soon discharged from the therapy and in a period of two years on average. Teachers who have abandoned treatment and did not obtain improvement in the voice showed negative impact in life quality and voice in a time of 2 years and 2 months on average. RESUMOObjetivo: Avaliar os efeitos em longo prazo da fonoterapia na qualidade de vida de professoras que receberam alta ou abandonaram o tratamento fonoaudiológico para disfonia. Métodos: Tratou-se de um estudo longitudinal baseado na análise das avaliações realizadas com docentes da rede municipal de ensino de Belo Horizonte, encaminhados para fonoterapia, que tiveram alta ou abandonaram o tratamento fonoaudiológico há mais de seis meses. Participaram 33 professoras no grupo alta e 20 no grupo abandono que foram contatadas, por meio de ligações telefônicas, e convidadas a responder ao protocolo Perfil de participação em atividades vocais, enviado e reencaminhado às pesquisadoras por meio de carta. Resultados: No momento pré-fonoterapia, os grupos alta e abandono eram homogêneos, exceto em relação ao parâmetro comunicação diária. Na comparação do grupo alta nos momentos pré e pós-fonoterapia observou-se melhora no parâmetro comunicação social e no escore total. O grupo alta apresentou piora no parâmetro autopercepção na comparação das médias nos momentos pós-fonoterapia e atual, e no grupo abandono houve piora nos parâmetros trabalho, comunicação social e no escore total na comparação das médias pré-fonoterapia e atual. Os grupos alta e abandono apresentara...