Skip to content

Fall Dental Care: Tips to Keep Your Teeth Healthy This Season

Fall dental care comes down to four habits: drink more water, rinse after sweet or acidic treats, wear a mouthguard for sports and book your checkup before the holidays.

Cut-away 3D molar in pink gum showing enamel, dentin and pulp, beside a toothbrush with toothpaste, water droplets and an orange maple leaf on a dark blue background

The season brings drier air, allergy flare-ups and a run of sugary celebrations that each put a little more strain on your teeth and gums.

Key takeaways

  • Dry air dries out your mouth. Saliva washes away food and acid, so a dry mouth means more risk of decay.
  • Allergies can dry your mouth. Mouth breathing and some allergy medicines both leave your mouth drier.
  • Timing beats avoiding treats. Rinse with water after sweets and wait before you brush.
  • Fall sports need protection. A mouthguard lowers the chance of a chipped or knocked-out tooth.

Why does dry fall air affect your mouth?

Cross-section of a molar in the gum with a light blue saliva layer over the enamel, labelled washes away food, weakens acid and repairs early enamel damage, under the title What Saliva Does for Your Teeth
Saliva coats the teeth, washes away food, weakens acid and helps repair early enamel damage.

Cooler weather and indoor heating pull moisture out of the air, and your mouth dries out with it. Saliva is your mouth's natural rinse because it washes away food, weakens acid and helps repair early enamel damage.

When saliva drops, plaque builds faster and bad breath becomes more common. Keep a water bottle nearby and sip through the day. Chewing sugar-free gum after meals gets saliva flowing again. A humidifier in your bedroom helps if you wake up with a dry mouth.

Coffee and alcohol dry the mouth too. Follow each cup or glass with some water.

How do allergies and sinus pressure affect your teeth?

Fall allergies affect your teeth in two ways that both leave them with less protection. A blocked nose makes you breathe through your mouth, and many allergy medicines reduce the saliva your teeth depend on.

Drink extra water on days you take allergy medicine and rinse after any syrup medicine because many contain sugar. A fluoride toothpaste adds protection for your enamel when your mouth is dry. Ask about fluoride treatment if you get cavities easily.

Sinus pain or toothache?

Two side views of the upper jaw: left, labelled Sinus pressure, the sinus and several upper back teeth glow teal; right, labelled Tooth problem, one upper back tooth with a small cavity glows
Sinus pressure spreads across several upper back teeth. A tooth problem stays in one tooth.

Your upper back teeth sit just below your sinuses, so sinus pressure can feel like a toothache in that area.

Sign Sinus pressure Tooth problem
Where it hurts Several upper teeth at once One tooth
What makes it worse Bending forward, lying down Biting, hot or cold food
Other signs Stuffy nose, facial pressure Swelling or a sore gum near one tooth

Pain that stays in one tooth or lasts after your cold clears needs a dental check.

Call 911 if you have difficulty breathing or swallowing or a changed, muffled or hoarse voice with mouth or facial swelling. Go to a hospital emergency department for swelling spreading under the jaw, into the neck or towards the eye, swelling under the tongue, a fever with facial swelling or swelling that spreads quickly over hours.
Not sure where the pain is coming from? Book an exam or call (905) 821-8632.

How can you enjoy fall treats without hurting your teeth?

You can enjoy the season's treats if you plan when you eat them. Sugar feeds the bacteria that make acid, and each sweet snack starts a new acid attack on your enamel.

Pumpkin spice lattes, hot cider and caramel apples bring sugar along with stain, so rinse with water after a sweet drink. Wait about 30 minutes before you brush after acidic food or drinks, so the enamel has time to harden again.

Halloween candy and kids

Let children eat their candy with a meal or in one sitting because grazing all evening keeps the acid attacks coming. Sticky and sour candies cling to teeth the longest, which makes brushing before bed most important on Halloween night.

Dental sealants protect the deep grooves in back teeth where candy gets trapped. Ask about them at your child's next visit to our children's dentistry team.

Do fall sports need a mouthguard?

Thick teal sports mouthguard fitted over a model of the upper teeth and gums on a dark navy background
A sports mouthguard covers the upper teeth and spreads the force of a hit.

Yes, because hockey, football, soccer and basketball all carry a risk of a blow to the mouth. A mouthguard spreads the force of a hit and protects your teeth, lips and jaw.

Store-bought guards are better than none. A custom guard from your dentist fits closely and stays in place, which makes it easier to breathe and talk. Learn more about sports mouth guards for every age.

If a tooth is knocked out, the injury comes first. A knocked-out adult tooth needs a dentist within the hour, so call us right away. If we are closed, go to whoever can see it fastest. Our post on when a dental problem is an emergency covers what to do on the way.

Call 911 for loss of consciousness, confusion, unusual drowsiness or heavy bleeding you cannot control. Go to a hospital emergency department first for any other head injury, a suspected broken jaw or bleeding that will not stop.

Is fall a good time for a dental checkup?

Fall is a smart time to book. A cleaning and exam now gets your mouth in good shape before the busy holiday season and catches small problems before they turn into urgent ones.

The change of season is also a good reminder to replace your toothbrush every three months, or sooner if the bristles look splayed.

Dentistry on Britannia sees patients across Mississauga for exams, cleanings and preventive care.

Ready for your fall checkup? Request an appointment or call (905) 821-8632.

Frequently asked questions

Why does my mouth feel drier in the fall?

Indoor heating lowers humidity and your mouth loses moisture faster. Sipping water and running a bedroom humidifier help.

Are pumpkin spice lattes bad for your teeth?

They contain sugar and can stain teeth over time. Drink them with a meal, rinse with water afterward and skip the extra syrup when you can.

Can sinus problems cause tooth pain?

Yes. Sinus pressure can feel like pain in several upper back teeth. Pain in one tooth or pain that outlasts the congestion needs a dental exam.