We know that there are sugary and sticky food that are bad for our dental health, but there are a few food that appear to be beneficial to our oral health.
This is a recent discovery. Cashew nuts and oil from the same plant will kill off some form of bacteria, including gram positive bacteria, the type most commonly involved in tooth decay and abscesses. Apparently even quite dilute amounts of anarcadic acids found in cashews are still quite effective against bacteria problems, meaning a small serving of cashews eaten on a daily basis will noticeably reduce tooth decay.
Cashews are high in calories, and they cannot be eaten straight from the tree. Even raw cashews are at least steamed. Individuals with nut allergies must obviously avoid cashews.
This is a sugar alcohol sweetener. Originally it was only thought of as a substitute for standard sugar, with less sugar meaning less decay. But it turns out that Xylitol actually has anti decay benefits on its own. It actually reduces dental problems.
Xylitol is derived from natural sources, though it does go through a certain amount of processing. It is found, in small amounts, in berries, oats, mushrooms, fruits and vegetables. Commercially available Xylitol is mostly derived from corn and corn husks.
Xylitol chewing gum is popular. It has a twofold benefit, with both the Xylitol and the saliva stimulation reducing decay.
Chocolate contains sugar, which is causing problems. But the cocoa is actually good for teeth. Find cocoa without sugar to help fight tooth decay. Remember, it is a stimulant.
Dairy is under scrutiny as of late. There are questions about whether we need to have grain or grass fed milk. And there may be more lactose intolerance problems than previously thought. But the calcium in milk is good for teeth and bones. Cheese looks to be the best option here.
Wisdom teeth are notorious for not emerging properly and getting infected. Healthy eating can at least reduce the risk infection problems. And if the teeth do need extraction it is easier if the mouth is healthy.
Reducing decay with healthy eating will not directly help the alignment of teeth, but keeping the teeth in optimal health will help the orthodontic treatment that does straighten teeth.