Can Genetics Cause Bad Teeth?

Genetics are pretty fascinating. You can be born with your mother’s smile, your father’s eyes, and even your grandmother’s nose. But what about your teeth? You may have heard people say that bad teeth “run in the family,” but how much of that is nature, and how much is nurture?

If you’re wondering if it’s possible to have bad teeth due to genetics, here are a few oral health issues that could be caused by your ancestors (and a few that aren’t).

Bite / Alignment

Your bite and the alignment of your teeth can absolutely be caused by genetics, because your genetics determine your jaw size. You can even have the same gap in your smile as an ancestor does! In fact, if you need braces, chances are someone in your immediate family will, too.

Tooth Color

Are your teeth naturally more yellow than you’d like? This could be due to thin enamel, which is caused by genetics. While enamel can also wear down with time and tooth discoloration can be caused by a variety of environmental factors including brushing habits, smoking, and diet, you absolutely can have yellow teeth because of your genes.

When Teeth Emerge

While most teeth erupt in a predictable sequence, there is no exact date that they appear for everyone. That’s why, for example, they say babies will get their first tooth “between” three to seven months of age. Where in that range your first tooth will emerge is largely based on genetics. If your parents were late bloomers, you may have been as well, and your children could be, too.

Predisposition

Predisposition is another concept that goes hand in hand with genetics. While predisposition does not guarantee you will inherit certain traits, it does put you at a higher risk for them. So, for example, if you have a predisposition for gum disease, you should take extra precautions with your oral health to prevent it. If someone in your family has had it, mention this to your dentist so he or she can be on the lookout for warning signs that could appear in your mouth.

Environmental Factors

In addition to genetic predispositions, there are environmental factors that may seem like they are genetic, but really aren’t, such as cavities. Cavities are caused by bacteria in your mouth which can be transferred from person to person by kissing, sharing cups or utensils, and sharing toothbrushes. Thus, if your dad has a lot of this bacteria and is prone to cavities and you share a spoon, he could be passing more along to you than that mouthful of dessert. You in turn could also have more cavities despite brushing well, making it seem like you’ve inherited dad’s bad teeth!

While things like crowding and enamel thickness are unfortunately beyond your control, ultimately, your oral health is up to you. Whether you have genetic predispositions or not, your behaviors and habits can largely influence the condition of your teeth and gums. That’s why it’s so important to brush twice a day, floss at least once a day, and visit your dentist for your regular semi-annual cleanings and exams. The better care you take of your mouth, the less likely you will experience cavities or gum disease and the healthier you will be.

About Dr. Rudd

Dr. Jeremy Rudd appreciates the artistry and science of dentistry and how improving a patient’s smile can make a huge impact on their overall health. He is a member of such prestigious organizations as the American Dental Association, Texas Dental Association, Academy of General Dentistry, and the Christian Medical & Dental Association.

To schedule an appointment at Broad Park Family Dentistry, please visit our website or call us at 817-473-6857.