Abstract Two previous studies of tooth mortality of similar populations were conducted in 1964 and 1969. The study was therefore repeated in 1982 to assess any discernible trends. It was found that there has been a marked reduction in mortality rates amongst all teeth except premolars in the younger age groups. The reduction was attributed to an improved dental service in conjunction with an increased public awareness of matters relating to dental health. The rise in mortality of premolars was correlated to the increased practice of orthodontics which demanded the relief of crowding.