Co-relation of body mass index, dental caries and periodontal status with fluorosis in different high fluoridated areas of Haryana state, India

[Relation between body mass index and dental caries among adolescents]

BACKGROUND

Obesity and dental caries are both multifactorial diseases. Their prevalence is increasing among infants and adolescents. Research results on the association between dental caries and obesity are contradictory and the nature of factors involved remains unclear. The aims were to review and summarize the type of the relation between dental caries and obesity among infants and adolescents aged 8 to 18 years old and to identify factors contributing to the clarification of the relationship.

METHOD

Research of literature was undertaken on electronically databases Scholar Google, Medline, completed by manual searches from reference lists of studies. Review was based on cross sectional studies published between 2010 and 2015.

RESULTS

The results showed that dental caries were associated with high and low body mass index. In addition to the socio-economic, environmental, behavioural, lifestyle factors, the review identified that the choice of instruments used to diagnose the dental caries and the obesity had impact on the results.

CONCLUSION

The present review has identified the impact of the indicators used for measuring obesity and dental caries other than the standard BMI or DMFT respectively. Future research should test if their use will change the conclusions on the association between obesity and dental caries.

Effect of Duration of Exposure to Fluoride and Type of Diet on Lipid Parameters and De Novo Lipogenesis

The effect of duration of chronic treatment with fluoride (F, 50 mg/L as NaF) on the lipid profile, lipid droplets and triglycerides (TG) in liver was evaluated in mice with nonalcoholic fatty liver disease (NAFLD) previously induced by hyperlipidic diet and in animals fed normocaloric diet. In addition, the effect of F administered for a short period (20 days) was evaluated on de novo lipogenesis, by nuclear magnetic resonance. GRP78, Apo-E, and sterol regulatory element-binding protein (SREBP) were quantified by Western blotting. Our data indicate that F interferes in lipid metabolism and lipid droplets, having a different action depending on the exposure time and type of diet administered. F improved lipid parameters and reduced steatosis only when administered for a short period of time (up to 20 days) to animals fed normocaloric diet. However, when NAFLD was already installed, lipid parameters were only slightly improved at 20 days of treatment, but no effect was observed on the degree of steatosis. In addition, lipid profile was in general impaired when the animals were treated with F for 30 days, regardless of the diet. Moreover, F did not alter de novo lipogenesis in animals with installed NAFLD. Furthermore, hyperlipidic diet increased F accumulation in the body. GRP78 increased, while Apo-E and SREBP decreased in the F-treated groups. Our results provide new insights on how F affects lipid metabolism depending on the available energy source.