What causes the formation of a cavity in a tooth affected by dental caries?

Show Answers

The damaging effect of Streptococcus mutans bacteriaThe harmful activity of Lactobacillus acidophilusSideways progression of decay along the dentino-enamel junction causing the enamel to weakenForce applied during mastectomy, unrelated to the severity of the decay

Explanation

Cavity development occurs due to the lateral advancement of caries along the dentino-enamel junction, which compromises the strength of the enamel layer. While bacteria like Streptococcus mutans and Lactobacillus acidophilus contribute to decay, the actual cavity forms as the decay spreads sideways beneath the enamel.