context: Tooth decay or (tooth) hole [1] is a dental disease in which lactic acid corrodes a hole in the tooth enamel. [2] [3] It is caused, among other things, by a bacterium called Streptococcus mutans, which produces corrosive acid metabolites from carbohydrates (including glucose and sucrose). It is an infectious disease in which the bacterium is often transmitted through the saliva of an infant or infant, for example, when feeding or kissing a parent. [4] [5] [6]
question: How is a hole made in a tooth?
answers.text: lactic acid corrodes a hole in the tooth enamel