Polycyclic aromatic hydrocarbons exposures and telomere length: A cross-sectional study on preschool children

2021 ◽  
Vol 195 ◽  
pp. 110757
Author(s):  
Abolfazl Adli ◽  
Seyed Mostafa Hosseini ◽  
Moslem Lari Najafi ◽  
Maryam Behmanesh ◽  
Elahe Ghezi ◽  
...  
2016 ◽  
Vol 59 (10) ◽  
pp. 887-896 ◽  
Author(s):  
Claudio Muñoz ◽  
Andrea Droppelmann ◽  
Marcia Erazo ◽  
Paulina Aceituno ◽  
Cecilia Orellana ◽  
...  

2018 ◽  
Vol 3 (3) ◽  
pp. 67-74
Author(s):  
Carla MASSIGNAN ◽  
Júlia Gonçalves Dos SANTOS ◽  
Marcos XIMENES ◽  
Mariane CARDOSO ◽  
Michele BOLAN

BMJ Open ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. e042908
Author(s):  
Tingting Zhang ◽  
Jialan Hong ◽  
Xueting Yu ◽  
Qiulin Liu ◽  
Andi Li ◽  
...  

ObjectivesSocioeconomic inequalities in oral health are often neglected in oral health promotion. This cross-sectional study assessed the association between dental caries and socioeconomic status (SES) among preschool children in China.DesignCross-sectional study.SettingData from the Fourth National Oral Health Survey of China (2015), comprising of 40 360 children aged 3–5 years was used.MethodsDental caries indicators including prevalence of dental caries, dental pain experience and number of decayed, missing and filling teeth (dmft). SES indicators included parental education and household income. The associations between SES and dental caries were analysed by using negative binomial regression or Poisson regression models according to data distribution. Relative and absolute inequalities in dental caries were quantified by using the Relative Index of Inequality (RII) and Slope Index of Inequality (SII), respectively.ResultsThere were significant associations between SES and prevalence of dental caries and dmft (p<0.001). Children from lower educated (RII 1.36, 95% CI 1.3 to 1.43; SII 0.97, 95% CI 0.81 to 1.13) and lower household income (RII 1.17, 95% CI 1.11 to 1.24; SII 0.55, 95% CI 0.35 to 0.75) families had higher dmft than those from well-educated and most affluent families. Relative and absolute inequalities in dental caries were larger in urban areas by household income, and in rural areas by parental education.ConclusionsAssociation between dental caries and SES was demonstrated and socioeconomic inequalities in dental caries existed among Chinese preschool children.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Iqra Muhammad Khan ◽  
Shani Ann Mani ◽  
Jennifer Geraldine Doss ◽  
Mahmoud Danaee ◽  
Lydia Yi Li Kong

Abstract Background Toothbrushing is an important yet neglected behaviour that affects the oral health of preschool children. Little is reported on parental supervision, an essential aspect of routine effective toothbrushing in this age group. The aim of this study was to evaluate pre-schoolers’ toothbrushing behaviour including parental involvement and its association with their oral health. Methods This was a cross-sectional study. A total of 92 preschool children (4–6 years) were invited to participate with their parents/guardians. Nine parameters of toothbrushing behaviour were assessed from parental responses (questionnaire) and observation of child and parents/guardians (video recording). Oral examination included recording plaque, gingival and dental caries indices. BORIS software was used to assess toothbrushing parameters and Smart PLS was used to perform association with a second-generation multivariate analysis to create models with and without confounding factors. Results Girls were slightly more (53%) than boys (47%). Children aged 4 years were slightly more in number (38%), followed by 6-year-olds and 5-year-olds. Nearly, 90% parents had tertiary education and 46% had more than 2 children. Differences were recorded in the reported and observed behaviour. Thirty-five percent parents/guardians reported using pea-size toothpaste amount but only 28% were observed. Forty percent reported to brush for 30 s–1 min, however 51% were observed to brush for 1–2 min. Half the children were observed to use fluoridated toothpaste (F < 1000 ppm) under parental supervision (11%). The mean (SD) plaque score reduction after toothbrushing was 10.80 (2.46), mean pre-brushing plaque score was 90.3 (10.2), mean gingival index was 0.89 (0.65) and mean dental caries status (ICDAS(1–6)) was 18.87 (12.39). Toothbrushing behaviour in terms of toothbrushing technique, duration, pattern and frequency, toothbrush type and grip type, toothpaste type and amount, post-brushing mouth rinsing and parental involvement contributed significantly to plaque score change (86%), dental caries status (73%), gingival index (66%) and pre-brushing plaque score (31%). The significant confounding variables had a small influence on oral health of preschool children. Conclusions Preschool children’s toothbrushing behaviour was inadequate while their oral health was poor, with a significant association between the two parameters.


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