What is the process of a person using their teeth to begin the break down of food?
No, orthodontists do not break teeth to apply braces to your teeth. However, if the orthodontist has determined that your mouth is overcrowded, it may be necessary to have some teeth extracted if they will interfere with the plan of correction. Once the braces are put on and the teeth begin to shift, they will gradually fill in the spaces where the other teeth were.
The first of the baby teeth (also called "milk teeth" and "deciduous teeth") begn to fall out about age five. They are gradually replaced by the newly erupting adult teeth, a process ususally complete by age 12-13. The exception is wisdom teeth, which, if they erupt at all, begin to do so about age 18-19.
So you don't get choked. -------------------------------- More then that, the mouth is the first stage of the digestive process and saliva contains enzymes that start to break down starch into sugars. The purpose of chewing is to use the teeth to grind up the food into small particles. This increases the surface area of the food which then makes the process of chemical break up of the food into its constituents (digestion) easier and faster…
The teeth begin the process by chewing your food into smaller pieces. You also made some enzymes (salivary glands) that begin the breakdown of sugars and other enzymes that begin the breakdown of lipids (by the tongue). You also make mucous that helps 'slid' the food along. Not much else occurs until the bolus of food reaches the stomach.
If the demineralization of teeth is cause by acid wroking on the teeth which substances would promote this process the most?
Any substance that is has a low pH value(specially 1-6, any value under 7) would help promote demineralization of the teeth. Substances such as lemon juice, white vinegar and carbonated drinks are highly acidic, having pH value's of 3 or below, meaning that these types of substances will promote the process of deminerlization becasue acidic substances break down tooth enamel, making the teeth weaker and more prone to demineralization.