Dental health, explained from the evidence: cavities, gum disease, bad breath, whitening, braces and tooth pain. I'm Redi Shuli, a dental student in New York, and I turn dental research into short, clear videos.
On this channel:
- Cavities, fluoride, sealants and diet
- Gum disease, bleeding gums and bad breath
- Brushing, flossing and kids' teeth
- Myths vs. facts: whitening, charcoal toothpaste, mercury fillings
- Braces, aligners and sensitive teeth
- Dental emergencies and when to see a dentist
- Dental school: the DAT and applications
Every video is based on a literature review. The full article, with every source, is free on happyteeth.care.
On the website you can:
- Read the full guides: happyteeth.care
- Get one email a month and a free dental emergency card
- Ask me your question: happyteeth.care/ask
General education, not a diagnosis. For severe pain, swelling or a knocked-out tooth, contact a dentist right away or call 911.
Business inquiries: hello@happyteeth.care
HappyTeethCare
Does losing teeth cause dementia?
Not proven. Tooth loss is linked with a modestly higher risk of dementia: in a 2026 study of 47,293 older adults in Japan, people with no teeth had a 27% higher risk than people with 20 or more teeth.
But the link may run partly the other way, because early memory problems make mouth care harder. Several reviews found the extra risk was smaller or unclear in people who wear dentures, though no trial has tested whether dentures prevent dementia.
Keeping and replacing teeth helps you chew a healthy diet either way.
happyteeth.care/tooth-loss-dementia/?utm_source=yo…
#toothloss #dementia #dentures
1 day ago | [YT] | 0
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HappyTeethCare
Does natural toothpaste prevent cavities?
Only if it contains fluoride. Words like "natural" and "herbal" say nothing about cavity protection.
Herbal toothpastes reduced plaque about as well as regular toothpaste in short, low-quality trials, but no good study shows they prevent cavities. Charcoal pastes have little evidence and were more abrasive in lab tests. Hydroxyapatite is the most promising fluoride-free option, with a few short trials.
Some natural brands add fluoride: look for "anticavity" or "fluoride" on the label.
happyteeth.care/natural-toothpaste-cavities/?utm_s…
#naturaltoothpaste #toothpaste #cavities
3 days ago | [YT] | 0
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HappyTeethCare
Can toddlers use fluoride-free toothpaste?
You can, but it gives up the cavity protection that fluoride toothpaste has shown in trials, and no fluoride-free option has comparable evidence in young children.
Pediatric and dental groups recommend a rice-grain smear of fluoride toothpaste from the first tooth until age 3, then a pea-sized amount. A smear holds about 0.1 mg of fluoride, far below a harmful dose if swallowed. Keep the tube out of reach, and see a dentist by your child's first birthday.
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#toddlerteeth #babyteeth #fluoride
6 days ago | [YT] | 0
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HappyTeethCare
Are at-home aligners safe?
Not without risk. The FDA says it has not authorized clear aligners sold directly to consumers without a prescription and supervision by a dentist or orthodontist.
In FDA reports about direct-to-consumer aligners, the most common problems were bite changes, face or jaw pain and gum problems. Clear aligners can work for simple cases, but an in-person exam with X-rays should come first.
See a dentist if a tooth feels loose, a new gap opens or your bite changes.
happyteeth.care/at-home-aligners-safe/?utm_source=…
#athomealigners #clearaligners #teethstraightening
1 week ago | [YT] | 0
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HappyTeethCare
Does a small chipped tooth need to be fixed if it doesn't hurt?
Not always. A chip that stays in the outer enamel isn't an emergency. Dental trauma guidelines list smoothing the edge, a tooth-colored bonding repair or gluing the piece back on.
In one study, none of 48 enamel-only chips with no other injury harmed the nerve over two years. But a chip into the dentin should be covered, and a tooth knocked in a fall or sports hit needs a checkup.
Chipped enamel doesn't grow back. Keep any broken piece moist and see a dentist.
happyteeth.care/chipped-tooth-no-pain/?utm_source=…
#chippedtooth #chippedfronttooth #dentalhealth
1 week ago | [YT] | 0
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HappyTeethCare
Does brushing too hard cause receding gums?
The evidence is weaker than most people think. Two systematic reviews called the link between brushing habits and gum recession inconclusive.
Hard bristles are linked to more small gum scrapes, and pressing harder doesn't clean much better. But in most trials of adults who already had receding gums, twice-daily brushing with a manual or electric brush did not make it worse.
Gum disease and thin gums matter too. See a dentist if your teeth look longer or your gums bleed easily.
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#gumrecession #recedinggums #dentalhealth
1 week ago | [YT] | 0
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HappyTeethCare
Crown fell out? Can it be put back in?
Often, yes. If the crown is in one piece and the tooth underneath is sound, a dentist can usually cement the same crown back on.
Until your visit, keep the crown safe. If it fits easily, pharmacy dental cement can hold it for a few days, but never use superglue. With no pain, UK dental guidance says to see a dentist within 7 days, or within 24 hours if painkillers don’t help.
Root canal tooth or temporary crown? Call sooner. Implant crown? It usually means a loose screw or cement, not a failed implant.
happyteeth.care/crown-fell-out/?utm_source=youtube…
#dentalcrown #crownfellout #dentalhealth
1 week ago | [YT] | 0
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HappyTeethCare
Filling fell out but no pain? How long can you wait?
A lost filling with no pain or swelling is usually not an emergency, but it shouldn’t wait for weeks. UK dental guidance says to see a dentist within 7 days, or within 24 hours if painkillers don’t control the pain.
No pain doesn’t mean no problem: decay is the top reason fillings fail, and an open hole traps plaque. A tooth that had a root canal no longer has its pulp nerve to warn you, so call sooner. Until your visit, cover the hole with a pharmacy temporary filling and chew on the other side.
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#lostfilling #toothfilling #dentalhealth
2 weeks ago | [YT] | 0
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HappyTeethCare
Is cranberry juice good for your teeth?
It is mixed. In a small 2026 study, swishing with pure, unsweetened cranberry juice slowed plaque regrowth, while a sweetened cranberry cocktail did not.
But pure cranberry juice has a pH of about 2.3, about as acidic as cola, and acid can wear away enamel. No study has shown that drinking it prevents cavities.
If you drink it, choose 100% juice, have it with a meal and rinse with water afterward.
happyteeth.care/cranberry-juice-teeth/?utm_source=…
#cranberryjuice #toothenamel #oralhealth
2 weeks ago | [YT] | 0
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HappyTeethCare
Does silver diamine fluoride stain teeth permanently?
Yes, on the decay itself. SDF turns the treated cavity dark, and the stain does not fade. On a baby tooth it lasts until the tooth falls out, and the adult tooth that replaces it is not stained.
Healthy enamel usually does not stain, and marks on the gums or lips fade in 1 to 3 weeks.
The spot can be covered later with a tooth-colored filling. Potassium iodide has not reliably prevented the stain in clinical studies.
happyteeth.care/silver-diamine-fluoride-stain/?utm…
#silverdiaminefluoride #sdf #kidsteeth
2 weeks ago | [YT] | 0
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