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Why we have crooked teeth (and our ancestors didn't) - Coggle Diagram
Why we have crooked teeth (and our ancestors didn't)
Soft Foods Theory
Modern food is processed & soft
Understimulated jaw bone growth
Teeth
crowd
at the
front
Impacted
rear
Anthropologist Rob Corruccini
Stress
environment
Taught at Southern Illinois
Student from rural Kentucky
Community Seniors
Hard-to-chew foods
Better bites
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Offspring
Refined, processed diets
Pima, Arizona
After
Access to store-bought
Before
Chandigarh, India
Rural
Coarse millet
Tough vegetables
Urban
Soft bread
Mashed lentils
Australian orthondotist "Tick" Begg
Abrasive
environmnent
1920s
Observation
Aboriginals
teeth wore
more
than
European ancestry
Perfect dental arches
Conclusion
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“pre-programmed”/
genetic
Charles Darwin
1871
The Descent of Man
Made the connection between stress & jaw size
First
to provide
definitive evidence
Lacks vitamins and nutrients