The aim of this study was to assess the prevalence of dental caries and its treatment among the adult population of
Baku, Azerbaijan, with low socio-economic status (SES). Methods: Home-based and workplace dental examinations
were performed on 681 adults (of whom 338 were male and 343 were female) from the age groups 15-19 years, 20-29
years, 30-39 years, 40-49 years, 50-59 years, 60 years and older, all of whom resided in Baku city. The subjects were
workers and unemployed people with low incomes. The World Health Organization 1997 criteria were used for diagnosis
and recording of Decayed, Missing, or Filled Teeth (DMFT) index. Dental caries was diagnosed at the caries into
dentine at the (D3) threshold, using a visual method with mouth mirrors, dental probes and daylight illumination.
Results: Results demonstrated an overall average caries prevalence of 96.7%. The lowest prevalence (86.1%) was in the
15-19 years group. Prevalence increased with age. The mean DMFT for all ages was 9.12, of which the M element was
6.81 and the F element only 0.35, resulting in a very low Care Index of 3.8%. There was a mean of 0.41 teeth per subject,
which manifested symptoms of either pulpitis or periapical infection and a mean of 0.72 teeth per subject present
as retained roots. In general, the subjects exhibited very low motivation for undergoing dental treatment and a poor level
of hygiene. Conclusion: The study demonstrated a very high prevalence of caries among Baku¬ís population with low
SES, a very high proportion of missing teeth, and a very low proportion of filled teeth, resulting in an extremely low
Care Index, demonstrating the inadequacy of the dental health service and the need to develop a programme aimed at
improving the dental health service provided for those from the lowest SES in Baku.