Oral Health at Every Age

Dr. Christopher Li Etobicoke - Li Family Dental

By Dr. Christopher Li

July 25, 2025

dental care, dental health, health and wellness, oral care, oral health

Your oral health journey changes as you grow. What’s important for a teenager with braces looks quite different from what a senior adult might need to maintain a healthy smile. Each stage of life presents unique dental concerns, but with a proactive approach, you can keep your teeth and gums strong for years to come. Here’s what oral health at every age looks like.

Oral Health At Every Age

Ages 9–14: Braces and Developing Habits

A girl with long hair, purple glasses, and braces is smiling outdoors in natural light.

In the preteen and teen years, orthodontic treatment is common. Braces help correct alignment, spacing, and bite problems—but they also call for more disciplined oral hygiene.

If you or your child has braces, consider these tips:

  • Brush after eating to dislodge food particles caught around brackets and wires.

  • Use the right technique, angling the toothbrush at 45 degrees toward the gumline and carefully brushing above, below, and around brackets.

  • Floss daily, using a water flosser or special orthodontic flossers to clean between teeth.

  • Add a mouth rinse with antibacterial properties to reduce plaque.

  • Clean your tongue with a scraper to cut down on odour and harmful bacteria.

  • Stay on schedule with regular dental checkups and cleanings.

Clear aligners like Invisalign can also make oral care easier during orthodontic treatment, since they’re removable for brushing and flossing.

Late Teens to Mid-20s: Wisdom Teeth and Growing Pains

X-ray image of a human jaw with a magnified view highlighting impacted wisdom teeth in the lower jaw area.

Between the ages of 16 and 25, many people face the arrival of wisdom teeth. While some experience no issues, others suffer from impacted or misaligned teeth that cause pain and crowding.

Watch for:

  • Jaw, ear, or head pain

  • Swollen or bleeding gums

  • Discomfort near the back molars

  • Difficulty opening your mouth

Dental x-rays can detect issues early, and removing problematic wisdom teeth sooner than later often results in a smoother recovery. Even if your wisdom teeth come in without issue, they can be hard to clean—so extra effort brushing and flossing is critical.

Late 20s and Early 30s: Decay and Lifestyle Impact

A car steering wheel covered with colorful sticky notes listing reminders, including errands, appointments, and motivational messages. A hand holds the wheel, ready to drive.

This phase of life often includes stress, hectic schedules, and lifestyle changes like poor diet, smoking, or inconsistent oral hygiene. These habits can lead to a rise in cavities and the beginnings of gum disease.

To counteract these risks:

  • Maintain a consistent brushing (twice daily) and flossing (once daily) routine.

  • Minimize sugary snacks and acidic drinks.

  • Stick to routine cleanings and exams to catch decay early.

Tooth enamel naturally becomes thinner with age, so reinforcing good oral habits now can prevent bigger problems later.

30s: Aging Fillings and Silent Cavities

Digital illustration of a row of teeth with one molar featuring a silver dental filling.

Fillings aren’t forever. Dental work done in your youth can wear down, crack, or loosen over time. If left unchecked, bacteria can slip in and lead to decay beneath the filling—causing infections, abscesses, and tooth loss.

Additionally, untreated cavities become more serious the longer they’re ignored. A tiny spot can grow to affect the tooth root, potentially requiring root canal therapy.

Avoid delays—book prompt follow-ups for any new fillings and never skip your dental checkups.

Late 30s to 50s: The Toll of Stress and Grinding

A woman with long brown hair holds her cheek and winces in pain, suggesting discomfort or a toothache.

Life gets busier, and with that stress often comes teeth grinding or jaw clenching—known as bruxism. This condition can lead to:

  • Worn enamel

  • Cracked or chipped teeth

  • TMJ pain and jaw stiffness

  • Morning headaches or neck tension

If you notice these symptoms, speak with your dentist about a custom night guard. It cushions your teeth while you sleep and helps protect against long-term damage.

40s and 50s: Sensitivity, Arthritis, and Systemic Health

A man in a white shirt holds his cheek in pain while eating a chocolate ice cream bar, possibly experiencing tooth sensitivity.

As you move through your 40s and beyond, changes in enamel and gum health become more pronounced. Receding gums and weaker enamel can lead to sensitivity, while conditions like arthritis may make daily brushing and flossing more difficult.

Helpful tips:

  • Use an electric toothbrush or one with a larger, ergonomic handle.

  • Pay special attention to the gumline when brushing.

  • Don’t skip flossing—even if it takes more effort.

Chronic illnesses such as diabetes also become more common and increase your risk for gum disease. Staying ahead with professional cleanings and proper home care is essential.

65 and Beyond: Aging Smiles and Medical Considerations

An older man sitting in a dental chair smiles and gives a thumbs up in a modern dental clinic setting.

As we age, oral health can be influenced by medications and systemic conditions. Seniors are more prone to:

  • Dry mouth (often a side effect of medications)

  • Tooth sensitivity and root exposure

  • Tooth discolouration

  • Oral infections, especially if wearing dentures

Increased risk of conditions like pneumonia, heart disease, or diabetic complications have been linked to poor oral health. Regular hygiene and dental visits help protect more than just your teeth—they can protect your overall health.

For individuals with dementia or other cognitive impairments, assistance with brushing and flossing may be necessary to prevent decline in oral health.

Why Your Dental Needs Evolve Over Time

oral-health-at-every-age-why-your-dental-needs-evolve-over-time

Our mouths reflect the natural aging process. Thinning enamel, gum recession, bone loss, and increased vulnerability to disease make routine care more important than ever as we grow older. Regular dental visits allow your provider to adjust your care based on your age, health conditions, and personal needs—so your smile stays strong for life.

Need to schedule your next checkup? Call us at 416-232-2033 or click here to book your appointment.

Dr. Christopher Li

About the author

Doctor Christopher Li, DDS
Dr. Chris, as he is affectionately known, is a licensed dentist with over 20 years experience. His caring personality makes even the most tentative person at ease. Patients are constantly commenting about how Dr. Chris is incredible at delivering pain-free freezing, and how he has an amazing chair-side manner.  Dr. Chris loves sharing information with his patients and everyone who has teeth about how to care for their teeth, avoid tooth decay, and the treatments available to help them overcome their tooth pain or other dental issues so they can enjoy life and food to its fullest!

Never miss a good story!

 Subscribe to our newsletter to keep up with the latest trends!