1. I don't remember hearing Dr or David Christopher saying anything about healing cavities. I do remember hearing David say something in regards to fresh comfrey leaves packed into the mouth. I can't seem to remember for which tooth problem though. I heard it off one of the recordings. Comfrey is known as knitbone to many.
2. There is a separate post line here about tooth enamel. I am very well familiar with the grey colorings. Yes, I have heard antibiotics too. And I'm sorry to say that after doing much research and hearing David speak on the subject, I've pretty much given up hope. Whether it is from the antibiotics or from too much fluoride (I was given fluoride tables as an infant), David said there's little one can do. I heard that one on his radio program, you can access the archived shows on the website. Teeth are pretty much done forming around 7 years old, esp the front ones. Once they are formed and have pressed through, that's how they are going to be (except for alignment which can be helped). So, learn from the experience and help all those little ones around you! To strengthen any bone, carrot juice is strongly recommended. Time after time, I hear amazing stories of carrot juice giving amazing strength to bones. Try at least 1 glass of fresh carrot juice a day.
3. It makes sense that carrot juice, comfrey, and complete bone and tissue would be the ones to focus on here. Also, a very good teeth cleaning; not with lasers or anything abrasive, but by a well trained oral practitioner who uses the old fashioned scrapper and toothpaste (nonfluorinated).
Also, in all of these, don't underestimate the possibility of the tooth and gum powder from Dr Christopher. I'm personally trying it out now.
Also the Herbal Calcium. I have heard wonderful things about this formula and have used it myself. I’m personally having trouble right now with crocked unruptured wisdom teeth. I’m getting a lot of relief from applying the calcium right to the gum and rubbing it in.
Oregano Oil is a favorite of many for tooth problems. As mentioned in other posts-be careful of the strength, 1 drop will be fine. Stop after 1-2 weeks and rest.
Diets full of fresh produce help to scrape the teeth and keep them well. If they kids bite a lot of crunchy produce, I’ve heard David say it helps to make the teeth stronger.
And of course, don’t go to any dentist. If you have an opportunity to “shop around” for a good one, do! Through much prayer and persistence, I have located a wonderful holistic dentist. He does not use amalgam mercury, root canals, bleach, etc. This is the kind of dentist you want.
One last thing, hinted to above, fluoride is highly debatable. If you have not done research into the subject, I recommend doing so. If you come to a conclusion not to use it, stay away from most toothpastes, tap water, aluminum, etc.
Hope this is helpful,