A 17-year-old patient has developed only one new interproximal carious lesion over the past two years. How would you classify this patient's caries risk?

Caries risk assessment categorizes patients as low, moderate, or high risk based on the number of new or recurrent cavitated lesions within a defined period. A patient with only one new carious lesion in two years is considered low caries risk. High caries risk is typically defined as three or more new cavitated lesions within a year. Low-risk patients generally have good oral hygiene, low sugar intake, adequate fluoride exposure, and normal salivary function. Risk-based recall intervals can be extended for low-risk patients.