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Preventive Dentistry: Top 5 Risk Factors for Oral Cancer

Jun 03, 2025
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Preventive Dentistry: Top 5 Risk Factors for Oral Cancer

At the practice of Heather M. Wilmore, DDS, we take preventive dentistry seriously. We know just how powerful early action can be in preventing potentially life-threatening oral cancers.

 

That all starts with education. Our job is to help you understand the risk factors that can increase your chances of developing oral cancer.

 

Here, we cover five key risks you can control, starting today.

1. Tobacco use

Smoking is famously the leading risk factor for oral cancer, but many people don't realize that the threat doesn’t just come from cigarettes. Tobacco in any form counts: Cigars, pipes, and especially chewing tobacco expose your mouth to toxic chemicals that damage cells, leading to mutations that can cause oral cancer.

It also weakens your immune system, making it harder for your body to fight abnormal cell growth. If you're a tobacco user, quitting is one of the most important steps you can take to lower your risk.

2. Alcohol use

Alcohol use causes about 4% of all cancers, and it's a big risk factor for oral cancer. One study showed a 300 times higher risk of oral cancer in people who both drink and smoke. Alcohol can negatively affect the tissue lining your mouth and throat, making it absorb the harmful chemicals from tobacco faster. 

Drinking too much may also disrupt cellular cycles, damage DNA, and negatively affect hormone balance. These are all reasons to stop drinking or limit your alcohol intake starting now.

3. HPV

Human papillomavirus (HPV) is the culprit in as many as 7 in 10 oral cancer cases. One specific strain, HPV-16, is often linked to oral cancers. Practicing safe sex is important for preventing the spread of HPV. Although the HPV vaccine was created to fight reproductive cancers, it may also help prevent oral cancer. 

The vaccination is most effective in people who haven't been exposed to HPV yet, so experts recommend it for young people at around ages 11-12. Men and women need the vaccine by age 26. Your doctor may also recommend it if you're 26-45.

4. Nutrition

A lack of fruits and veggies in your diet can weaken your body’s natural ability to fight off cancer-causing agents. Nutrient-rich foods, especially those high in antioxidants, can help you avoid this.

Consider increasing the amount of leafy greens, berries, citrus fruits, and colorful vegetables in your meals. Many studies show a positive correlation between increasing fruit and veggie intake and lowering oral cancer risk.

5. UV light exposure

If you frequently spend time outside, particularly without proper sun protection, you could be putting your lips at risk for skin cancer. While you may remember to use sunscreen, it’s easy to overlook your lips.

To reduce your risk, choose a lip balm that includes SPF and opt for a wide-brimmed hat to shield your face from harmful UV rays whenever you can.

Don’t forget the importance of routine oral cancer screenings. These exams complement your sun safety habits and provide an added layer of long-term protection.

Dr. Wilmore and our team provide personalized, highly attentive preventive care to help you avoid oral cancer, tooth decay, and gum disease. Reach out to Heather M. Wilmore, DDS, now: Call 713-266-4222 to schedule your oral cancer screening visit.