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Questions

50 answers, by topic. If yours isn’t here, write to us.

How it works

How does Silentrin work?

Silentrin is a mouthguard designed to gently hold the jaw forward to help keep the airway open. Two connected trays grip your upper and lower teeth, and a small key sets how far forward the lower tray sits. See how it works.

Does it work for everyone?

Snoring has more than one cause and every mouth is different, so results vary from person to person. That is what the 60-night guarantee is for: you can try it and decide.

How is it different from nasal strips, mouth tape or a pillow?

Those act on the nose, the lips and the angle of your head. Silentrin is designed to act on the position of the lower jaw. See the comparison.

How is it different from a dentist-made device?

It is a different kind of device. A dentist-made appliance is made from impressions of your teeth and adjusted by a professional, and it typically costs $1,500 or more. Silentrin is molded at home in one size, adjusted by you, and starts at $49.99. It applies the same jaw-forward principle at home. What the 2015 guideline says.

Is it a night guard for grinding?

No. A night guard for grinding is designed to protect teeth. Silentrin is designed to hold the lower jaw forward. It isn’t designed or tested for teeth grinding.

Is it a medical device?

Silentrin is sold as a general wellness product. It isn’t intended to diagnose, treat, cure, or prevent any medical condition, and it doesn’t replace professional care. Loud snoring with gasping or choking, or heavy daytime sleepiness, can be signs of sleep apnea. If that sounds like you, see a doctor.

Fitting, adjusting and using it

How do I mold it?

Fill a mug with cold water and bring a pot of water to a low boil. With kitchen tongs, lower the mouthguard into the boiling water for 60 seconds, with the UP arrow on the upper tray. Dip it in cold water for 3 seconds, place it in your mouth with the UP arrow facing up, center it in the mirror and bite down firmly for 30 seconds. Then hold it in cold water for 30 seconds. See the four steps.

What if I get the molding wrong?

Put it back in boiling water for 60 seconds, then mold it again from the start. If it still does not fit after a second try, write to us: the 60-night guarantee covers it.

How long does molding take?

About 3 minutes once the water is boiling: 60 seconds in boiling water, 3 seconds in cold water, 30 seconds biting and 30 seconds in cold water.

What do I need to mold it?

A pot of water, kitchen tongs, a mug of cold water, a timer that shows seconds and a mirror. Boiling water can burn, so use tongs.

How does the key work?

A small key turns a screw on each side of the mouthguard. You turn each screw to the same mark on the scale, moving the lower tray forward one small step at a time.

How far forward should I go?

Start at neutral for the first nights. After a few nights, move forward one step at a time, at your own pace. If your jaw or teeth are sore, move the lower tray halfway back toward neutral. Read the day-by-day guide.

What will the first night feel like?

Light soreness is possible in the first few days. Your jaw may feel slightly forward when you wake up, and that fades after you take the mouthguard out. Extra saliva is possible at first. Start at neutral.

How long does it take to get used to it?

It varies. Light soreness is possible in the first few days. Move forward only at your own pace, and move halfway back toward neutral if your jaw or teeth are sore. If discomfort doesn’t go away, stop and see your dentist.

Will it stay in all night?

There is no strap: two connected trays grip your upper and lower teeth after molding. Every mouth is different, so we can’t promise it for every sleeper, and the 60-night guarantee is there if it doesn’t work out for you.

Can I use it with braces, crowns, fillings, bridges or implants?

Don’t use it with braces or orthodontic treatment, or if you had a dental implant placed in the past 12 months. Crowns, fillings and bridges are not on the instructions’ list of reasons not to use it, but ask your dentist to check, especially if the work is new or loose.

Can I use it if I grind my teeth?

Silentrin isn’t designed or tested for teeth grinding. Ask your dentist what is right for you.

What if I have a blocked nose?

Nasal obstruction is one cause of snoring, and a jaw-forward mouthguard may not help it. Breathing through your mouth can also feel harder with the mouthguard in. If you have chronic nasal congestion, talk to a doctor first.

Safety

Who should not use Silentrin?

Silentrin is not a treatment for sleep apnea. If you have been told you have sleep apnea, or you think you might, talk to your doctor before using it. Don’t use it if you have or may have central sleep apnea. Also don’t use it if you have a severe breathing condition such as asthma or emphysema, a jaw joint disorder (TMD), jaw pain or clicking, loose teeth or advanced gum disease, braces or orthodontic treatment, or a dental implant placed in the past 12 months. Silentrin is for adults 18 and older. Before you start, ask your dentist or doctor for an oral health check to make sure it suits you. Take the 30-second check.

Will it hurt my jaw or teeth?

Light soreness is possible in the first few days. Your jaw may feel slightly forward when you wake up, and that fades after you take the mouthguard out. Start at neutral. If your jaw or teeth are sore, move the lower tray halfway back toward neutral. Possible effects include tooth movement or a change in your bite, sore gums or teeth, a sore jaw joint, extra saliva, and harder breathing through the mouth. Stop using it and see your dentist if you have pain, loose or moving teeth, or discomfort that doesn’t go away.

Could it move my teeth or change my bite?

It is one of the possible effects. That is why we recommend an oral health check before you start, and why you should stop and see your dentist if you notice pain, loose or moving teeth, or a bite that feels different and stays different. Questions to ask your dentist.

Is it safe to use every night for years?

Long-term data on wearing it every night for years is not available. Pay attention to how your teeth and bite feel, and see your dentist if anything changes.

When should I stop using it?

Stop using it and see your dentist if you have pain, loose or moving teeth, or discomfort that doesn’t go away. If you have any bad reaction, stop and contact a health professional.

Is it for children?

No. Silentrin is for adults 18 and older. Keep it out of reach of children.

Should I see a dentist first?

Yes, we recommend a quick oral health check first. It matters most if you have jaw pain or clicking, loose teeth, gum disease or new dental work.

Materials, care and kits

What is it made of?

An ABS structure with a silicone lining. Its specifications list both as food-grade.

How do I clean it?

After each use, rinse it in cold water. Brush it gently with a soft toothbrush and toothpaste, rinse again, dry it and keep it in its case. Use cold water: hot water softens the lining. You can also soak it in denture cleaner.

Can I clean it in boiling water?

No. Use cold water: hot water softens the lining. Boiling water is only for molding, and only in the first fitting.

How long does it last?

How long it lasts depends on how you care for it: rinse it in cold water after each use and keep it in its case. If it is damaged or stops fitting, write to us.

What are the brush and the ultrasonic cleaner for?

The dual-head cleaning brush is made for cleaning the mouthguard. Use it in your daily routine, in place of a soft toothbrush: brush gently with toothpaste, rinse in cold water, dry and store it in its case. The ultrasonic cleaner in The Ritual (50 kHz, 200 ml tank, battery included) is for a deeper clean on top of that routine. Fill it with cold water, because hot water softens the lining, and follow the manufacturer’s instructions. See what the extras are.

What comes in each kit?

The Hush ($49.99): the mouthguard, the calibration key and a ventilated case. The Fresh ($59.99) adds a dual-head cleaning brush. The Ritual ($79.99) adds the brush and an ultrasonic cleaner (50 kHz, 200 ml, battery included). Compare the kits.

Sharing a room, travel and results

Will my partner notice it?

In bed it looks like a night guard, and we won’t pretend nobody can see it. By day it stays in its ventilated case, stored like a toothbrush.

Can two people use one kit?

No. It is molded to one person’s teeth, so each person needs their own. Two of The Hush cost $79.98 in your cart, $20 less than two separate ones.

Can I take it when I travel or stay somewhere else?

Yes. Mold it at home first, then keep it in its case in your bag. Heat softens the lining, so keep it out of hot places like a car in the sun, and rinse it in cold water as usual. Read “Sharing a room”.

How do I know whether it’s working?

Record a few nights before you start and a few nights after, in the same conditions, and compare. Results vary from person to person, and a phone recording is less precise than a sleep study. Read how to measure your nights.

Can I talk to my dentist about it?

Orders, shipping and payments

How long does delivery take?

Shipping is free in the US. Orders ship within 1 business day, and most are delivered 5 to 7 days after they ship. You’ll get a tracking number by email when yours ships. Your 60 nights start on the day it’s delivered.

Do you ship outside the US?

Silentrin ships to US addresses only, and shipping is free.

Can I track my order?

Yes. As soon as your order ships, you receive an email with a tracking number. Tracking can take up to 48 hours to show its first update. Track your order.

Is checkout secure?

Payments are handled by third-party payment processors through our store platform, Shopify. We never see or store your full card number.

Can I change my address after I order?

Please double-check your shipping address at checkout. If you spot a mistake, contact us as soon as possible and we will do our best to correct it before your order ships.

How can I reach you?

By email at hello@silentrin.com or through the contact page. We usually reply within 1 to 2 business days.

Guarantee and refunds

What if it doesn’t work for me?

You have 60 nights from delivery. Write to us and we refund the full purchase price. You do not need to send anything back, and used devices are covered. It’s one refund per customer. See how the guarantee works.

How do I request a refund?

Contact us within 60 nights of delivery with your order number and the email you used at checkout. We confirm your request, usually within 1 to 2 business days, and refund the full purchase price to your original payment method.

Do I have to send it back?

No. We do not ask you to return the mouthguard. For hygiene reasons a used device is never resold, so keep it or throw it away as you prefer. Your original order shipped free, so there is no shipping charge to refund.

When will I get my refund?

Once we confirm your request, we issue the refund to your original payment method within 5 business days. Your bank may take another 5 to 10 business days to show it on your statement.

What if it arrives damaged or wrong?

Contact us within 14 days of delivery with a photo. We will send a replacement or refund you, and you will not need to return anything.

Are there limits?

The guarantee applies to one refund per customer. Discounted orders, including the Couple’s Kit, are refunded at the price you actually paid. Read the full policy.

About Silentrin

Who is behind Silentrin?

silentrin.com is operated by Silentrin. You can reach us at hello@silentrin.com. More about us.

Where can I read the research behind it?

On the research page: NHS guidance on snoring, the 2019 study on women’s snoring and the 2015 AASM and AADSM guideline, with every source listed. Read what the research shows.

Christopher B., Managing Director, Silentrin
Christopher B. Managing Director, Silentrin

Still no answer? Write to us at hello@silentrin.com. Our team reads every message.

Still deciding?

60 nights to decide. Free US shipping.

See the kits · from $49.99