Measurement of the cariogenicity of snacks using a radioisotope PAHA disc.

Objectives: This study aimed to establish a method for measuring the cariogenic potential of foods with high reproducibility in vitro.

Methods: Streptococcus mutans (S. mutans) was incubated in test foods with radioisotope polyacrylamide hydroxyapatite (PAHA) for 150 min at 37 °C.