Infants who are of low socioeconomic status, who consume a diet high in sugar, and whose mothers have a low education level are how many times more likely to experience ECC or S-ECC?

• A. 8
• B. 16
• C. 32
• D. 64

Answer: (C)

The main idea being tested is how multiple risk factors multiply the chance of early childhood caries. When an infant is in a low socioeconomic situation, has a diet high in sugar, and is cared for by a mother with low education, these factors interact in ways that greatly amplify risk. Low SES can limit access to preventive care and fluoride, influence feeding and daily routines, and reduce opportunities for healthy oral habits. A high-sugar diet increases the frequent exposure of teeth to cariogenic substrates. Low maternal education can affect knowledge and practices around oral hygiene and timely dental visits. Together, these factors don’t just add up; they reinforce each other, producing a strong, multiplicative effect on risk. In studies of ECC and S-ECC, having all three factors has been associated with about a 32-fold increase in risk compared with children without these risk factors. So, 32 reflects this substantial, synergistic rise in risk when all three conditions are present.