Statement of the Problem:
Since children in adulthood are at risk of obesity and caries due to various factors such as diet and poor health habits, these can affect a child's various body systems, including body mass index (BMI) and salivary components, therefore, it is necessary to assess these factors and their relationship in this age group
The aim was to evaluate the association between decayed missing filled teeth index (DMFT), salivary alpha amylase (sAA) level and age-specific BMI in adolescent girls.
A cross-sectional study was conducted on 81 females aged 13-15 years in 3 groups of BMI percentiles; “normal”, “at risk for overweight” and “overweight” (n=27). DMFT was calculated and unstimulated saliva samples were collected. sAA level was measured with a spectrophotometer. Data were analyzed using Kolmogorov-Smirnov test, Kruskal- Wallis and Spearman correlation tests in the software of Statistical Package for the Social Sciences (version 23) at p < 0.05.
The concentration of sAA and Mean DMFT were estimated 1326.56±4.73 U/L and 2.77±2.36, respectively. There was no significant difference in sAA level and Mean DMFT among BMI groups. A positive and significant correlation was found between sAA and DMFT in overweight group (r: 0.46, p = 0.014).
Within the limitation of this study, higher level of sAA may be considered as an indicator for dental caries in overweight adolescent girls.
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