7 min read • By Dr. Kevin Baharvand, DMD, MS • Updated August 2026
The short answer
Adult pacifiers get marketed for anxiety, for grinding, and as a smoking substitute. From an orthodontic standpoint the problem is straightforward: sustained pressure moves teeth at any age. Hours a night of a pacifier between your front teeth will open a gap over months, the same way thumb sucking does in children, and adult bone remodels more slowly and less forgivingly. If the underlying issue is grinding or anxiety, there are appliances designed for that.
This turns up as a wellness product and as a TikTok thing, usually pitched at anxiety, jaw clenching, or quitting nicotine. The claims sound plausible enough that people ask about it.
The honest answer is that the goals are reasonable and the tool is wrong, and the reason is the same principle my entire specialty is built on.
Teeth move when you push on them for long enough. That is not a childhood phenomenon. That is just how teeth work.
On this page
Why sustained pressure is the whole issue
Orthodontics works by applying light continuous force. Not hard force, light force, held for hours. The bone around the tooth remodels in response and the tooth moves through it.
Duration is what matters, not strength. This is why we tell aligner patients that twenty two hours a day works and fourteen does not. It is also why a habit held for hours a night is orthodontically meaningful even though it feels like nothing.
A pacifier sits between the upper and lower front teeth. The tongue pushes forward against it, the lips purse around it, and the front teeth get pushed apart from the inside over months. In children this pattern has a name, an anterior open bite, and it is one of the most recognisable things in pediatric orthodontics.
Adults are not exempt. We are slower to remodel, which means it takes longer to show up and also longer to correct.
| What it does | Over what timeframe | Reversible |
|---|---|---|
| Opens a gap between the front teeth | Months of regular nightly use | Sometimes partially on its own if stopped early. Often needs treatment |
| Flares the upper front teeth outward | Months | Usually needs orthodontic correction |
| Reinforces a tongue thrust pattern | Ongoing while the habit continues | The habit outlasts the pacifier and is harder to unlearn |
| Jaw muscle fatigue and soreness | Weeks | Yes, once the habit stops |
| Does nothing for actual grinding | Not applicable | It is not a protective appliance and does not stop clenching |
If the real problem is grinding or clenching
This is the most common reason people reach for one, and it is the one where a proper solution already exists.
A night guard is a custom appliance that covers the biting surfaces and distributes the force so your teeth are not grinding directly against each other. It does not stop you clenching, and nothing does reliably, but it means the wear happens to a piece of plastic instead of to your enamel.
A pacifier does the opposite of this. It sits between the front teeth, keeps the back teeth apart, and provides something to actively push against, which for a lot of clenchers means working the jaw muscles harder rather than less.
If you are waking with jaw soreness, headaches at the temples, or teeth that are visibly getting shorter, that is a real problem with a real treatment path and it is worth an actual assessment.
A night guard protects your teeth from your jaw. A pacifier gives your jaw something to work against. Those are opposite objectives.
If the real problem is anxiety or quitting nicotine
I am not going to be dismissive about this. Oral fixation is real, the urge to have something in your mouth is real, and people quitting smoking or vaping are dealing with something genuinely hard.
What I would say is that the alternatives do not carry a dental cost. Sugar free gum, which additionally stimulates saliva and is actively good for your teeth. A water bottle. Nicotine replacement designed for the purpose, which has evidence behind it.
And if the anxiety is severe enough that a pacifier felt like a reasonable idea, that is worth taking seriously on its own terms rather than managing around. That is outside what a dentist should be advising on, and I would rather say so than pretend otherwise.
What this looks like in children, since the mechanism is identical
Parents ask when a pacifier stops being harmless, and the general guidance is that it is fine in infancy and worth stopping by around age two to four.
The reason is that the permanent front teeth start arriving around six, and habits that persist past the arrival of adult teeth are the ones that cause lasting changes rather than temporary ones. A three year old who stops has usually self corrected by five. An eight year old with a thumb habit is a different conversation.
Same principle applies to prolonged thumb sucking, and to why a first orthodontic look around age seven is useful. Not to start treatment, just so somebody has seen how the adult teeth are coming in.
If you have already been using one
Stop and get a look, in that order.
If it has been weeks rather than months, there may be nothing to see and that is a good outcome. If a gap has started opening at the front, catching it early matters, because a small change is a much smaller correction than a settled one.
Bring it up specifically rather than waiting to be asked. An open bite that developed recently in an adult is unusual enough that the cause is worth knowing, and a dentist who does not know about the habit is left guessing at something like a tongue thrust or a jaw joint problem.
If correction turns out to be needed, that is what our sister practice does. Elate Orthodontics handles adult treatment, including the aligner cases where the goal is closing a bite back down.
Common questions
Can adult pacifiers move your teeth?
Yes. Teeth move in response to sustained light pressure at any age. Hours of nightly use between the front teeth can open a gap over months, the same mechanism as prolonged thumb sucking in children.
Do adult pacifiers help with teeth grinding?
No, and they can make clenching worse by giving the jaw something to work against. A custom night guard is the appliance designed for that problem.
Are adult pacifiers safe for occasional use?
Occasional brief use is unlikely to move teeth, because duration is what drives tooth movement. Regular use for hours at a time is a different matter.
What can I use instead for anxiety or quitting smoking?
Sugar free gum is the most dentally sensible option and it stimulates saliva. For nicotine, replacement products designed for the purpose have real evidence behind them.
When should a child stop using a pacifier?
Generally by around age two to four. What matters most is that the habit ends before the permanent front teeth arrive around age six.
I have used one for months. What should I do?
Stop, and have it looked at. If a gap has begun opening at the front, catching it early makes correction considerably simpler.
Noticed a change in your bite?
A gap that was not there last year is worth ten minutes. We will tell you whether anything has actually shifted, and whether it needs correcting or just needs the habit to stop.
You may also be interested in these
- When should kids start going to the dentist?
- How to clean a night guard
- Can you get braces with a crown?
About Tribute Family Dentistry
200+ five-star Google reviews • Family owned and independent • D Magazine Best Dentist 2026 • Living Magazine Readers' Choice 2026 • Se habla espanol
Tribute is a family owned, independent practice on FM 423 in Frisco. I own it with my wife, Dr. Julia Kang, DMD, MS. We both trained at Boston University and we are both members of the Omicron Kappa Upsilon national honor society. I am a Diplomate of the American Board of Orthodontics. Day to day, most patients and their kids see Dr. Christina Pham, DMD, our general and family dentist, and oral surgery is handled by Dr. David Roberts, DDS, who has been doing it for more than 35 years. D Magazine named me a Best Dentist for 2026, and Living Magazine readers voted us Best Family Dentist in Frisco and Plano the same year.
We handle the whole family in one place: cleanings and preventive care, fillings, crowns, bridges, implants, root canals, extractions and wisdom teeth, whitening, night guards, and emergency visits. We are open Monday through Friday, 8:00 AM to 5:00 PM, we speak Spanish, we work with most major insurance plans, and we run an in house savings plan for families without dental benefits.
If you need braces or clear aligners, that is the other side of what we do. Elate Orthodontics, our sister practice, treats kids, teens, and adults out of three offices in Frisco and The Colony.
Tribute Family Dentistry
5605 FM 423, Suite 600-B, Frisco, TX 75036
Book an appointment: (469) 598-1021
About the author: Dr. Kevin Baharvand, DMD, MS is a Diplomate of the American Board of Orthodontics and a national speaker on clear aligner treatment. His clinical work was selected for the cover of the American Journal of Orthodontics and Dentofacial Orthopedics. He and his wife, Dr. Julia Kang, own Tribute Family Dentistry and Elate Orthodontics in Frisco, Texas.
