Pattern and Severity of Dental Caries among Adults in an Urban Population in Northwest Nigeria

Dental caries is one of the most prevalent oral diseases affecting children and adult populations worldwide. The distribution and severity of dental caries vary in different parts of the world and within the same region or country. However, few studies have focused on the burden of caries among Nigerian adults. Therefore, this study aimed to determine the severity and pattern of dental caries among the adult population in the Kano metropolis. This was a cross-sectional study in which adults were interviewed using an interviewer-administered semi-structured questionnaire. Examiners used the criteria set by the World Health Organization (WHO) for assessing Decayed, Missing, and Filled Teeth (DMFT). Field examinations were carried out under artificial light with a wooden spatula, dental mirror, and a Community Periodontal Index of Treatment Needs (CPITN) probe. Respondents' mean (±standard deviation (SD) age was 41.2 (±12.78) years. The mean DMFT for the population was 3.58 (±3.53). One-in-three respondents (33.3%) had very low DMFT while one in five (20.0%) had very high DMFT. Severe dental caries as indicated by very high DMFT were more prevalent among women (22.2%), respondents with informal education (61.5%), and those who had a family history of dental caries (28.4%). The severity of dental caries among the adult population in the Kano metropolis was low. Interventions should be focused on women, those with informal education and positive family history.