Tooth Calendar Blog
Eighteen: Five Lifelong Oral Health Habits to Pass On to Your Grown-Up Child
Fluoride toothpaste twice a day, daily flossing, regular checkups, less sugar and acid, no tobacco. Five habits your grown-up child can carry on, and why.
At a glance
- Brush twice a day with fluoride toothpaste, floss daily
- Checkups at the interval the dentist suggests, usually every six months
- Never start smoking, vaping, or nicotine pouches
From the day the first tooth came in until now, the years of brushing their teeth and taking them to the dentist are coming to an end. Your child is an adult now, and it's their turn to care for their own teeth. It doesn't need to be complicated. Here are five things worth keeping up for life, written for parents and young adults to read together.
Why these five are enough
Most of the big problems in the mouth, cavities and gum disease, can be prevented with daily habits. Cavities form when bacteria on the teeth feed on sugar and make acid. Gum disease starts when plaque (a film of bacteria) left between the teeth and gums inflames the gums. So: remove that film every day, cut down on how often teeth are exposed to sugar and acid, and catch problems early. All five habits are built on these three ideas.
Life changes a lot in adulthood. Young adults start living on their own, sleep gets irregular, and it's easy to put off the dentist when busy. There are also more chances to be offered tobacco. That's why it's worth going over these habits now. Brushing and checkups have been part of life since childhood, so all that's left is to keep them going without anyone telling them to.
Five habits for life
- Brush twice a day for 2 minutes with fluoride toothpaste. Never skip brushing before bed. During sleep, saliva drops and can't rinse the mouth as well.
- Clean between the teeth once a day with floss or interdental brushes. A toothbrush has a hard time reaching between the teeth, so plaque is easily left there. Floss works well for tight spaces, interdental brushes for wider ones.
- Get checkups and cleanings at the interval the dentist recommends. Usually that's every 6 months. Cavities and gum disease don't hurt early on, so waiting until something hurts often means bigger treatment.
- Have sugary drinks and snacks less often. Both how much and how often matter, and it's especially important not to have them often. Rinse with water after acidic drinks like soda or sports drinks.
- Never start smoking, vaping, or using nicotine pouches. Smoking brings on gum disease, staining, and dry mouth, and it's a clear risk factor for oral cancer. Vapes and nicotine pouches also come with nicotine addiction and harmful substances, and their long-term effects aren't fully known yet. Since quitting is hard once you start, never starting is the easiest way.
When starting life on your own, small preparations protect good habits. Carrying a toothbrush and toothpaste in your bag makes it easy to brush even on days you eat out. Splayed bristles don't clean well, so replace the brush. And if you tend to keep a sweet drink nearby and sip it while studying or working late, try switching to water.
A common mistake is skipping checkups for years because "nothing hurts, so it's fine." If you're busy, just putting the checkup date in your phone calendar ahead of time helps.
You don't have to do all five perfectly at once. If you miss a day, just pick it up again tomorrow. Habits are kept through steady effort.
And one last request for parents. Now, rather than taking care of everything, trust them and let them take it on. Being there when they ask for help is enough.
Frequently asked questions
Are wisdom teeth all done now?
No. Wisdom teeth keep changing into the early 20s. Keep having them checked at regular checkups.
2 minutes feels longer than I thought. Does it really matter?
Rushed brushing easily misses the inner surfaces and the backs of the molars. Using a timer or one song makes it easy to get the full 2 minutes.
Is the checkup interval always 6 months?
Usually it's 6 months, but the dentist may recommend a different interval depending on cavities or gum health. Just follow the interval you're given.
Flossing makes my gums bleed, which is scary. Should I keep going?
For the first few days, gums can bleed if they're inflamed. But bleeding isn't normal, so don't press hard: flossing gently and steadily usually makes it fade. If it lasts more than 1 to 2 weeks or gets worse, have the dentist check.
What should we do with the records kept so far?
Export the records from the app and keep them. They make it easy to explain past treatments when going to a new dentist.
See the dentist even if nothing hurts when
- It's been longer than the recommended interval since the last checkup
- Gums often bleed when brushing or flossing
- Teeth feel sensitive or hurt when chewing
- The gum at the very back is swollen, or opening the mouth is uncomfortable
- You want to quit tobacco and need help
English ebook · Dentist Ingyoon An
A guide to the decisions behind dental care
Tooth Calendar follows dental care from pregnancy to eighteen in 78 chapters. Explore the reasons behind feeding, brushing, baby-tooth decay, sedation, and injury decisions—including what can be watched and when to seek help. Age-based contents and a topic index help you find the concern you have today.
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Sources
- WHO · Oral health (Fact sheet) (2023)
- ADA · Brushing Your Teeth (MouthHealthy) (2024)
The information in this article is for general educational purposes and does not replace professional dental care. Talk to a dentist about your child's condition.