This report presents data at a state and territory level for the first 4 years (2013–14 to 2016–17) of the Public Dental Waiting Times National Minimum Data Set. This data set covers adults who were placed on selected public dental waiting lists to enable monitoring of in-scope waiting times. No national-level data are presented due to concerns about data comparability. This report examines factors that contribute to this lack of comparability, ahead of a planned redevelopment of the data set.