Os objetivos foram descrever o padrão temporal de taxas mensais de cinco procedimentos odontológicos dos serviços públicos do Brasil e avaliar mudanças nas tendências das taxas entre 1994 e 2007. Os dados foram obtidos no Sistema de Informação Ambulatorial (SIA-SUS). Foram calculadas as taxas mensais de procedimentos odontológicos coletivos, procedimentos preventivos, restauradores, exodontias e total de procedimentos odontológicos para o Brasil, e a taxa total de procedimentos odontológicos para cada macrorregião. As séries foram analisadas por médias móveis e modelos Sarima. Observou-se decréscimo nas tendências das taxas de restaurações e exodontias. As principais alterações foram observadas entre janeiro de 1998 e janeiro de 2000. Em outubro de 1999, a taxa total de procedimentos por mil habitantes aumentou em 30,5 procedimentos ou 55%, e após a inclusão das Equipes de Saúde Bucal (ESB) o aumento foi de 5,9 procedimentos ou 6,9%. Encontrou-se um forte padrão sazonal. Conclui-se que as principais alterações nas séries coincidem com o período tardio de municipalização da saúde, mas houve um aumento na taxa total de procedimentos com o incentivo a inclusão da ESB-PSF (Programa Saúde da Família).
The objectives of this study were to describe the time series of monthly rates of five dental care procedures in the Brazilian public health system and to assess changes in trends of dental procedures from 1994 to 2007. Data were collated from the Outpatient Information System of the Unified Health System (SIA-SUS). Monthly rates of total dental care procedures, preventive procedures, collective procedures, restorations and extractions for the whole country and total procedures for each macro-region were calculated. Time series were analyzed using moving average and SARIMA models. There was a decrease in trends of restorative care and tooth extraction rates. The major alterations occurred between January 1998 and January 2000. In October 1999 the total rate of dental procedures per thousand inhabitants increased by 30.5 procedures, i.e. 55%, and after the introduction of the Oral Health Teams (ESB) in the Family Health Program (PSF) in December 2000, the increase was 5.9 procedures, i.e. 6.9%. There were also strong seasonal variations. The conclusion was that the main changes in the series occurred due to the municipalization process, though after the introduction of the ESB-PSF program, there was an increase in the total rate of dental procedures.