It's one thing to inherit your father's nose or your grandma's eyes, but have you ever thanked — or blamed them — for your teeth?
Here's something for you to chew on: The health of your teeth depends on a combination of genetics and dental hygiene, according to an expert.
Seven Sharp spoke to
Can genetics explain why some people have worse teeth than others?
"Yes, genes and genetics play a significant role in a person's dental health and overall condition.
"Genes have been found to be influential in things like tooth development, how many teeth we have, and whether they're present or not. In enamel and dentine strength — those are the structures that make up the crown of the tooth," said
"Genes also influence the saliva composition and the quantity of saliva, which in turn affects the acidity of the mouth. [Genes] also influence the jaw size, its position and whether there's a malalignment or mouth position that needs to be addressed.
"Gene markers have been found to be strongly associated with susceptibility to periodontal disease, which is gum disease. And also decay," explained
"Genes do play quite a significant role."
What are the genetic conditions that can cause bad teeth?
"There are some genetic genes that are associated specifically with the teeth, things like Amelogenesis or Dentinogenesis imperfecta — those are a group of genetic conditions that affect the quality and the amount and quantity of the structures that cover the teeth, the enamel and the dentine," said
"Then there are the syndromes and conditions that affect the rest of the body and the organs. There are a number of conditions that affect both the quality of the teeth, the number of the teeth, jaw size and their position."
Is there a way to determine if you have one of these genes?
"The most straightforward and inexpensive way is to get a detailed family history, which generally shows you a good analysis of whether those [genes] were passed down.
"A really good starting point is to see your healthcare provider."
Do people with these genes have to do more to care for their teeth than others?
"Definitely. I think the most important thing is to be more rigorous. Everyone needs to have excellent oral hygiene practices in place. Everyone needs to brush twice a day, floss daily, and see their dentist on an annual basis at least," said
"People with those conditions are more susceptible to decay and gum disease. Like everything else, you want to arm those teeth and take preventative measures.
"It's important that [people with those conditions] are more aware of needing to look after their teeth more."
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