
When you think about sun protection, you probably imagine slathering sunscreen on your skin or reaching for a wide-brimmed hat. But did you know that your smile—especially your lips and the tissues inside your mouth—also needs protection from the sun’s harmful rays?
As a family dental practice that treats patients of all ages, our experienced team is here to help you protect your entire mouth, not just your teeth. Understanding how ultraviolet (UV) rays can affect your oral health is the first step in keeping your smile healthy year-round.
UV Rays: More Than a Skin Concern
Ultraviolet radiation from the sun is known to cause skin damage and increase the risk of skin cancer. However, many people do not even realize that their lips are especially vulnerable. The skin on your lips is thinner and contains less melanin, the pigment that helps protect against UV damage, making it more susceptible to sunburn and other issues.
Chronic sun exposure can lead to a condition called actinic cheilitis, a precancerous change most often found on the lower lip. This condition appears as persistent dryness, cracking or white patches and, if left untreated, can progress into squamous cell carcinoma, a type of skin cancer.
The Hidden Risks to Oral Tissues
While your lips are the most directly exposed part of your mouth, UV rays can also have an indirect impact on your inner cheeks, tongue and roof of the mouth. Though less common, oral cancers can develop in these areas, especially in individuals with high cumulative sun exposure and other risk factors such as tobacco or alcohol use.
Additionally, spending extended time in the sun without hydration can lead to dry mouth. Saliva is your mouth’s natural defense against decay and bacteria. When saliva production decreases, you may become more prone to cavities, gum disease and bad breath.
Protecting Your Smile in the Sun
Here are simple steps to protect your entire mouth when spending time outdoors:
- Use SPF Lip Balm
Choose a lip balm with an SPF of 30 or higher. Reapply it every two hours, especially after eating, drinking or swimming. Your lips need as much sun protection as the rest of your skin. - Wear a Hat
A wide-brimmed hat can shield your face and lips from direct sunlight, reducing your exposure significantly. - Stay Hydrated
Drinking plenty of water helps maintain saliva flow and keeps your mouth moist and protected, especially during hot weather. - Avoid Peak Sun Hours
Limit direct sun exposure between 10 a.m. and 4 p.m., when UV rays are strongest. - Schedule Regular Dental Visits
Your dentist does not just check for cavities—they also look for early signs of oral cancer and other conditions related to sun damage. Regular checkups are crucial for early detection and prevention.
A Year-Round Commitment to Oral Health
While summer may bring sun safety to the top of your mind, protecting your mouth from UV rays is important year-round. Whether you are hitting the beach in July or skiing under bright winter sun in January, your smile deserves protection. As your trusted family dental practice, we are committed to helping you maintain a healthy, beautiful smile through every season.
If you have concerns about changes in your lips, mouth or oral health, please consider scheduling a preventative dental appointment. Our skilled dentists are here to take care of your smile today and for all the many sunny days to come. We proudly serve families in Romeoville, Naperville, and Montgomery, Illinois, and look forward to helping your mouth stay healthy and smile-ready!