RESUMEN
OBJECTIVES: To investigate socioeconomic inequality in caries experience in an adult Norwegian population. METHODS: This population-based study included 4549 dentate participants aged 25-94 years from the cross-sectional HUNT4 Oral Health Study conducted in Central Norway in 2017-2019. Participants were randomly sampled from the larger HUNT4 Survey and answered questionnaires and underwent clinical and radiographic examinations. Caries experience was measured as numbers of decayed, missing and filled teeth (DMFT index) and socioeconomic position was denoted by education and household income. Negative binomial regression models were used to estimate associations between caries experience and socioeconomic position. RESULTS: Lower levels of both education and income were associated with higher caries experience, particularly pronounced for missing teeth. Socioeconomic gradients were observed for all outcomes DMFT, DT, MT and FT (p-value linear trends <.001). Gradients were similar for both income and education and were apparent for all age groups but were most evident in middle-aged and older individuals. High level of education was associated with a 50% lower mean number of missing teeth compared with basic level education, whereas high income was associated with a 24% lower mean number of decayed teeth and a 15% higher mean number of filled teeth than low income. CONCLUSIONS: There was a socioeconomic gradient for caries experience in the study population that was present from early adulthood and increased with age. The gradient was particularly pronounced for missing teeth. Findings indicate that inequality was more associated with treatment given than with untreated disease.
Asunto(s)
Índice CPO , Caries Dental , Factores Socioeconómicos , Humanos , Noruega/epidemiología , Caries Dental/epidemiología , Persona de Mediana Edad , Adulto , Anciano , Femenino , Masculino , Estudios Transversales , Anciano de 80 o más Años , Renta/estadística & datos numéricos , Disparidades en el Estado de Salud , Escolaridad , Salud Bucal/estadística & datos numéricosRESUMEN
OBJECTIVE: To investigate dental caries prevalence amongst adults in Central Norway and assess changes over the last 45 years. MATERIALS AND METHODS: The cross-sectional HUNT4 Oral Health Study was conducted in 2017-2019. A random sample of 4913 participants aged ≥19 years answered questionnaires and underwent clinical and radiographic examinations. Data were compared to findings from previous studies in the same region conducted from 1973 to 2006. RESULTS: Mean number of decayed, missing and filled teeth (D3-5MFT) was 14.9 (95% CI 14.7, 15.1), 56% of adults had one or more carious teeth (D3-5T) and 11.8% had ≥4 D3-5T, with the mean number of 1.4 (95% CI 1.32, 1.42). For initial caries, mean D1-2S was 3.8 (95% CI 3.7, 3.9), being the highest for 19-24-year-olds at 8.6 (95% CI 7.9, 9.3). Comparisons with earlier studies showed a decline in mean D3-5MFT for 35-44-year-olds from 26.5 in 1973 to 10.8 in 2019. In 1973, 4.8% of 35-44-year-olds were edentulous, while in present study edentulousness was found only in individuals >65 years. CONCLUSIONS: Despite a substantial reduction in caries experience over the last 45 years, untreated dentine caries was common, evenly distributed across all age groups. Initial caries particularly affected younger individuals, indicating a need to evaluate prevention strategies and access to dental services.