OBJECTIVES To determine trends in dental caries prevalence, severity and unmet treatment need levels amongst South African children. METHODOLOGY Data obtained from three National Oral Health surveys (1982, 1988/89, 1999/2002) was used. RESULTS Prevalence of caries amongst 12-year-old children decreased from 64.4% (1982) through 54.9% (1988/89) to 41.7% (1999/2002) and the DMFT decreased sig...

BACKGROUND In leprosy, oral health is often neglected and poorly understood. This study aimed to evaluate the prevalence and risk indicators of dental caries in patients with leprosy in China. METHODS This cross-sectional, multicentre study included 613 patients with leprosy and 602 control subjects. Based on the established standards of the World Health Organization, we investigated dental c...

AIM The purpose of this study was to analyse the serotype distribution of S. mutans and their association with caries activity in school children from Córdoba, Argentina. MATERIALS AND METHODS Clinical examination was performed in 133 children. The dmft+DMFT and Significant Caries (SiC) indices were calculated to identify individuals with high caries activity. After DNA extractions of S. muta...

INTRODUCTION Oral and dental health is one of the most important factors that affect the quality of life of preschool children. This study determined the effect of oral and dental health of preschoolers on their quality of life and that of their parents. METHODS This descriptive-cross sectional study asked 304 mothers of children aged 2-5 years from Babol, Iran, to complete an Early Childhood...

OBJECTIVE To assess the oral hygiene knowledge, attitude and practices among school children and evaluate their DMFT (Decayed/Missing/Filled Teeth) scores. STUDY DESIGN Cross-sectional study. PLACE AND DURATION OF STUDY A private school of Karachi from March to April 2008. METHODOLOGY Convenient sample comprising 300 students of grade 6 within the age group of 11-12 years was selected. A ...

Kinetic hydrophobic measurements were performed by confronting 40 mutans streptococci from thirty 10- to 20-year-old patients with 200 ml hexadecane (Sigma). Fourteen patients had high dental caries risk (Group A), dmft + DMFT > 5 with 3 or more active caries, and 16 had low dental caries risk (Group B), dmft + DMFT < 3 without active caries. Twenty bacteria from Group A and 20 bacteria from Gr...

INTRODUCTION Dental caries today, regardless of known multi causal etiology of the disease and the possibility of its effective prevention still represents the most widespread disease of our civilization, which affects about 95% of our population. It affects all populations and age groups and is a disease that is very difficult to completely eradicate due to a complex interaction of biological ...

OBJECTIVE The aim of this study was to assess the caries prevalence and treatment needs of Brazilian indigenous residents on an Indian reservation. METHODS This cross-sectional study comprised 1 461 individuals of ages 18-36 months and 5, 12, 15-19, 35-44, and 65-74 years living in the Potiguara Indian villages of Brazil. Decayed, missing, or filled permanent teeth (DMFT) and deciduous teeth ...

Husbands and wives constitute genetically unrelated individuals living together, often sharing a common diet, and subjected to similar environmental stresses. Examination of resemblances in the dental caries experience (DMFT) in spouse pairs can contribute to an understanding of dental caries epidemiology in the adult (KLEIN, JADA 33: 735-743, 1946). In this study, individual husband and wife D...

We compare the accuracy of ghost rotationally invariant slave-boson (g-RISB) theory and dynamical mean field (DMFT) on single-band Hubbard model, as a function number bath sites in embedding impurity Hamiltonian. Our benchmark calculations confirm that g-RISB can be systematically improved by increasing sites, similar to DMFT. With few we observe is more accurate than DMFT for ground-state obse...