RESUMEN
The aim of the study was to determine dental caries prevalence and severity among adult patients attending Al-Ahsa Dental Center in Al-Ahsa Region of Saudi Arabia. A total of 544 adult patients, 42% males and 58% females with a mean age of 42.7 +/- 18.1 years, were examined for dental caries utilizing WHO criteria for diagnosis of dental caries. The caries prevalence among the sample was 89.2% with a mean DMFT score of 13.24 +/- 11.53. The mean DMFT scores of the patients from urban areas [14.03 +/- 12.11] were significantly higher than patients from rural areas [11.39 +/- 9.84] [P<0.01]. Missing teeth was the major component of the total DMFT score. About 17% of the patients were edentulous. However, more than half [56.8%] of the patients above 61 years were edentulous. In conclusion, the caries prevalence and severity were very high among the subjects studied