Table of Contents[Hide][Show]
The true scientific reasons for crowded or crooked teeth and what you can do to achieve a naturally straight smile both in baby and adult teeth.
Scientists have suggested several different theories over the decades as to what causes crooked teeth in humans.
When my Dad started medical school in the late 1940s, he was taught that racial mixing (Italians marrying Irish for example) was the cause of crooked teeth.
Malocclusions had just started to reach epidemic proportions in children at that time.
Of course, this theory of racial mixing causing crooked teeth which were incidentally presented as fact to the wide-eyed medical students of the time is completely ridiculous and has long since been disproven.
Other theories include thumb sucking and consuming soft foods which are suppositions subscribed to by many orthodontists.
The soft food theory suggests that because humans don’t exercise their jaw muscles enough that our jaws have become weak and narrowed over time.
One orthodontist once told me (while I struggled to keep a straight face) that wisdom teeth were being genetically “selected out” of the gene pool because they are no longer needed because of the different foods that humans now eat compared with ancestral societies.
Now comes a variation of the “soft food causes crooked teeth” theory which was recently described in a study published in the online edition of the Proceedings of the National Academy of Sciences.
This new theory states that the movement of humans from hunter-gatherers to farmers around 10,000 years ago put us on the inevitable road to the orthodontist’s chair.
To test this hypothesis, Noreen von Cramon-Taubadel, an anthropologist at the University of Kent in the UK, examined the skull and jaw shapes of ancient skeletons housed in museums that originated from Africa, Australia, Europe, and North/South America.
Six of the populations lived by farming and five were hunter-gatherers.
A significant correlation existed between how a population obtained its food and the shape of the jaw. Hunter-gatherers had narrower and more jutting lower jaws whereas those of the agriculturalists were shorter and wider.
The shape of the upper jaw and palate also varied somewhat between the farmers and hunter-gatherers.
Von Cramon-Taubadel concludes by suggesting that the transition to farming and an increase in food processing both of which led to the consumption of softer foods resulted in a shorter and weaker human jaw.
“Jaw shortening” leads to greater crowding of the teeth.
To lend support to her theory, von Cramon-Taubadel refers to preliminary studies of animals that show that those that are raised on softer more processed foods develop smaller jaws than those raised on fresh, unprocessed diets.
Katerina Harvati, an anthropologist at the University of Tubingen in Germany says that this recent paper by von Cramon-Taubadel is a “well thought out piece of research and an important contribution” to understanding how the way humans live affects their body shape.
She goes on to say, “These findings confirm long-held ideas that the dietary shift to softer foods was an important influence affecting facial and dental morphology.” (1)
The “Soft Food” Theory
Strong contradictory evidence to the soft food theory as a reason for crooked teeth is presented in Dr. Weston A. Price’s book Nutrition and Physical Degeneration.
How this convincing evidence was completely ignored as part of this supposedly “well thought out piece of research” is rather surprising and I would think, downright embarrassing for the author.
While hunter-gatherers certainly had strong jaws which allowed them to consume hard foods, the strength did not come from greater exercising of the jaw muscles! As suggested by Sally Fallon Morell, President of the Weston A. Price Foundation, such a theory makes the critical mistake of confusing muscle with bone.
A narrowed jaw and palate, for example, can be identified in babies at birth long before they have chewed anything!
Dr. Price also correctly pointed out that when the jaw and palate are narrowed, other parts of the skeleton are correspondingly narrowed as well such as the pelvic opening which causes greater difficulty in childbirth and the chest cavity which crowds the vital organs.
The Swiss farmers studied by Dr. Price subsisted on very soft foods and yet had beautifully broad palates with perfectly straight teeth.
Moreover, the South Sea Islanders photographed by Dr. Price with perfectly straight teeth consumed primarily seafood and poi, both soft foods with poi, in particular, a very soft and sticky staple carbohydrate in their diet.
The Truth About Crooked Teeth
Von Cramon-Taubadel did get one aspect of her paper correct. The rise of food processing did indeed contribute to the modern epidemic of crooked teeth, but not because such foods are softer than unprocessed foods.
Rather, processed and industrialized foods are devoid of the critical nutrients necessary to produce a broad and sturdy jaw with correspondingly straight teeth.
How to Get Naturally Straight Teeth
Dr. Price’s research compellingly argues that a lack of jaw development and crooked teeth is entirely nutritional in origin such as attempting to build a wide bridge with substandard materials. (2)
Without essential nutrients in the form of minerals and the fat-soluble activators A, D, and K2 which were abundant in primitive diets, the jaw and palate cannot form with enough strength to support a broad facial structure.
No surprise that the pregnancy diet of ancestral women was rich in all three of these palate-widening nutrients, but these nutrients in their natural, synergistic form are woefully low in prenatal diets of today. Prenatal supplements do not adequately fill the gap either as these pills are largely synthetic and not easily absorbed.
Traditional cultures ensured that a fat soluble-rich diet continued throughout a child’s early years as well. This guaranteed straight baby teeth as well as uncrowded adult teeth.
The easiest way to ensure a child gets enough is with a daily dose of high vitamin cod liver oil and a K2 supplement such as butter oil, natto extract, or emu oil. Vetted brands listed here.
Hence, the narrowing of the face and crooked teeth in the majority of modern children is the result of a nutritionally deficient diet. This is the case no matter what the hardness of weaning foods, thumb-sucking or pacifier use, or whether the baby was breastfed and for how long.
(1) Blame Your Crowded Teeth on Early Farmers, Wired
(2) The Right Price, The Weston A. Price Foundation
More Information
How I Healed My Child’s Cavity
Busting the Beta Carotene Vitamin A Myth
Toddler’s Severe Tooth Decay Halted in 5 Days
Whiten Your Teeth Without Dangerous Chemicals
Resolving Periodontal Problems with Bone Broth
Coconut Oil Stops Strep Bacteria from Damaging Tooth Enamel
Your Dentist is Holistic?
Avoiding Root Canals
Could the Cause of Your Illness Be Right Under Your Nose?
Wisdom Tooth Extractions
I was a vegetarian with my first child and she has the worst teeth. Dental Caries as a baby and toddler and now..braces forever. The other two children are fine so far. I ate a more traditional diet with the last two.
Kelly Kahler Amy Bailey
Our dental lab makes those DNA appliances! They are amazing!
My dad’s family is a blend of Cherokee with English/Scottish. They have beautiful teeth and rarely deal with cavities/fillings. My dad just turn 93 this week and has his own teeth and no fillings. He also just got his driver’s license renewed. 🙂 His five kids also have nice teeth and little trouble with cavities. The first two (including me) were bottle fed (yuck) but the other three were nursed. Made no difference in our teeth. I was the one thumb sucker in the family and my teeth are straight and perfect. My oldest son also was a thumb sucker and his teeth are beautiful. Our youngest son has six kids and one of them sucks his thumb. He’s 6 years old and still doing it and he has some of the best teeth in the family. I don’t think thumb sucking has anything to do with your teeth. I think if they are going to come in crooked, they are going to do it anyway. My dentist says he loves working in my mouth (no fillings at 60 years old). The grandkids on the whole also have the nice teeth. Living in different parts of the country, eating different things. It seems to have more to do with genetics with us than anything else. Mixing the Cherokee (three lines behind my dad) with the other races did us nothing but good. My mom is mainly English background and she has had trouble with her teeth (and bones) since she was young. She eats the same things as my dad (she’s 80). His teeth are good, her’s aren’t.
I know that my teeth were pretty straight and I had braces on less than 8 months (I am sure the ortho just wanted money). But my wisdom teeth were twice the size of my molars! They had to be cracked under the gum line and extracted. When they started to come in I cried in horrific pain! Not sure how my nutrition could have helped? I was breast fed over a year as a babe
I’m currently working with Dr. William Hang from Face Focused to correct bad orthodontic work form when I was a teenager. His website has a TON of information and he does things differently than the standard orthodontic treatment that gives you straight teeth but ruins your face in the process. He does not believe in extractions like the conventional orthodontists. http://www.facefocused.com
Marie: I don’t need that. My teeth are perfect now!
I do not think braces are good when they retract the teeth. I did that before I knew with my son and he has had TMJ problems and headaches. I took him to Dr Hang and he moved the teeth forward because the previous ortho had prevented the maxilla growth and so he did not grow wide arches and started to have the long face syndrome. Now is jaws are forward so his profile looks good. Best to do orthotropics BEFORE their growth is done so the the teeth and bone can be guided to grow a beautiful face which is every child.
I think breastfeeding really helps too. I was only able to breastfed my first child for 5-6 months. My others were breastfed until about 18 months. My oldest has crooked teeth and some issues. My other two are very straight and full smiles. My mother breastfed me until I was over 2 years old. I have really straight teeth and most people assume that I had braces as a child. I thank my mom for giving me such a nutritious start early on.