Posted on 21-Aug-2019


Many pieces of oral health are linked to genetics, but we can’t attribute every aspect of a healthy smile to DNA. However, together you and your dental team can keep your mouth in top shape regardless of your genetic predispositions
Teeth and jaw alignment
Your jaw shape and size is determined by your genes, and in turn, your teeth alignment is heavily influenced by your jaw. Crowding, gaps, overbites, and underbites are all the result of genetics. There is little you can do behaviorally to help these problems — not even a perfect dental hygiene routine can change the size of your jaw — but a professional can work with you to prescribe braces, headgear to realign teeth for the smile you want.
The classic bane of dental health, cavities, are affected by multiple genetic and behavioral factors. The DEFB1 gene plays a key role in first-line immune responses against invading germs, and research has shown that certain variations along this gene are linked with higher levels of tooth decay. Saliva production also influences the development of cavities.
Gum disease
Typified by inflammation and sensitivity, periodontal (gum) disease might be associated with the FAM5C gene. Those with weakened immune systems are also more prone to gum disease because their bodies have a more difficult time fighting off bacteria.
Oral cancer risk
Cancer risk is often considered to be rooted in genetics, and it’s not unusual to hear that it “runs in the family.” - Source: American Dental Assn
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