I had three of them removed a long time ago. One of those had a cavity along the gum line. The last one was at the time considered problematic to extract due to the angle it was coming in. It has since fully grown into place and causes no issues.
I've never read about any magickal significance to teeth. I had crooked teeth as a child and got traditional braces in my teens. By the time I was in my 30s or so, my teeth were becoming crooked again.
I read Weston A. Price's book Nutrition and Physical Degeneration in which he examined the teeth of people in transition from traditional diets to the foods of "modern commerce" back in the early 1900s. He discovered that children born and raised on traditional diets had much better teeth and fully developed jaws while those raised on the cheaper imported foods had poorly developed jaws, longer faces, and crooked teeth. Even getting sufficient calories didn't matter as the food itself was lacking in vital micronutrients. Price called it "activator X", which could now be considered vitamin K2. A lot of nutritional maladies were overcome by fortification of processed foods, considering how subsistence farmers and city dwellers relied on deficient soils and industrial scale farming to survive during the 20th century. Nevertheless, I would hardly call "modern commerce" diets today ideal for everyone even with supplementation. One can still find many families of 'beautiful people' whose children are well developed, and I would be quite curious to know what many of them are eating. I'd be willing to bet they're not feeding their children Cheerios, peanut-butter & jelly sandwiches, soft drinks, Fritos, Doritos, etc. Of course, food corps and their government lackies are always quick to defend profit margins, so yeah, evolution and all that.