TGuard Classic


(105 customer reviews)

Formerly known as the original ThumbGuard™, TGuard Classic is our time-tested, guaranteed way to break thumb sucking in 30 days or less.

Why is TGuard™ recommended the most?

  • TGuard™ Classic takes less than 4 weeks to completely break the habit.
  • TGuard™ Classic is made out of FDA-listed, medical grade plastic, and is manufactured in the USA. The product is 100% BPA and phthalate free.
  • It has a success rate greater than 95%.
  • We offer a 30 day, money-back guarantee.

For detailed sizing info, please click the “Sizing Chart” tab below.


If you are looking for a guaranteed way to stop thumb sucking in 4 weeks or less, without causing pain or discomfort, then look no further. Most parents see results after only ONE week of using the TGuard Classic™ treatment kit, making it one of the most recommended solutions to break the habit.

Please note: Most children switch from one thumb to the other, when you apply the TGuard. For that reason, we recommend purchasing two treatment kits, one for each hand.

To find out more about TGuard Technology, and how our products work to stop the thumb sucking habit, check out our TGuard Technology page.

If you have any questions, please visit FAQs for more information.

Kit Contents

Each treatment kit contains the following items, which is all you would need for 30 days of treatment for one hand:

  • 1 Ambidextrous ThumbGuard™ appliance
  • 30 bracelets: fun to wear, and multi-colored, so children can choose a new color every day!
  • 1 Instalock – makes the fitting process as easy as possible!
  • One set of instructions
  • Reward chart + stickers

Sizing Chart

SIZING CHART Age: 3 to 4 (under 40 lbs) Age: 5 to 6 (between 40 and 55 lbs) Age: 7+ (more than 55 lbs)
Recommended Appliance Size Small Medium Large

If your child is in between sizes, such as a child who weighs around 40 pounds, or is 4.5 years old, order a smaller size if the child is taller / thinner than an average child of their age, or order a larger size if the child is shorter / heavier than an average child of their age.

Please know that children under 3 are more likely to switch from thumb to finger sucking, or vice-versa, due to their habit not being fully matured. If you see that the child switches from thumb to finger sucking, you must contact us.

Video And Instructions



Click here to download TGuard Classic instructions.

105 reviews for TGuard Classic

Based on 105 reviews
Showing 76 of 105 reviews (5 star). See all 105 reviews
1-10 of 105 reviews
  1. My daughter was very established in her thumbsucking habit, we tried a few things but nothing worked, it had been going on 9 years. A local orthodontist office recommended TGuard. I ordered the TGuard online, it arrived by the date promised. By the time it arrived my daughter was enthusiastic to give it a try. It worked like a charm! By the end of two weeks she felt ready to not wear it but we did the entire three weeks just to be really sure (she only wore it at night). It has been three months since she finished using TGuard and she has not gone back to thumbsucking. The product is made of quality materials, we were extremely happy with it.

  2. It worked in 10 days . It broke the Habit❤️

  3. My daughter was 2 years when we purchased the device. Since she was born she was sucking her right thumb. After the first visit to the dentist he recommended the use of TGuard as an alternative of getting rid of the habit. Initially we purchased 1 device and she used it for couple of days, until we realized she was sucking the other thumb. So I purchased a second one and she used them contemporary for 1 month. Since then, 6 month have passed and she has quitted totally. Since we removed the device, she never sucked the thumb. While she was on tGuard, we noticed that her need to suck the thumb was diminishing day by day . So in our case it worked and I will absolutely recommend it. We had to purchase 2 of them to benefit from it. Good luck to everyone!

  4. Worked like a charm. Good investment, and my daughter’s open bite was corrected within months after she quit her thumb.

  5. My daughter was 3 ½ when she started with tguard. She sucked her thumb since she was a baby and then also had some Trichotillomania (hair pulling) issues while she slept. She’d pull her hair, wrap it around her thumb and sucked her thumb. (Yuck!) So, we tried hats at bedtime/naptime, but she’d eventually be able to reach under her hat to pull and mittens/gloves never stayed on. So, my main concern was her lack of hair, but I finally realized if we stopped her thumb sucking habit, then she wouldn’t need to pull her hair. Tguard was the answer we were looking for! She wore the bracelets (we called the plastic guards her bracelets) pretty well at night/naptime and liked the colored straps. The chart was nice too. After several months, though, I don’t know if they stretched or not, but she kept pulling them back to free her thumb- to be able to suck her thumb – and still reach under her hat and pull her hair (ugh!). I don’t know how she was able to do it as it was on the tightest setting. Tguard support worked with us and we replaced the bracelets. That worked for a few nights, then she started pulling the guard back to expose her thumbs again. I actually tried a bitter nailpolish on her thumbnails. With the nailpolish, she didn’t pull back her guards and left them on all night. We still wore the guards for a little while, but now she doesn’t need to. She’s completely kicked the habit of both thumb sucking and hair pulling! We are thrilled and so thankful that our little girl can now wear pigtails! Thank you for all your support!

  6. We tries the t-guard for our four year old. At first it seeemed that it had worked well and she had kicked the habit, unfortunately she regressed. We bought her the next size up as she she expressed discomfort with her first one when we started using it again. This time she became used to sucking and/or biting the plastic over her thumb. Unfortunately the device did not work for us, although I hear it has for many others.

  7. I think this device might work if your child is ready. We tried the older-style device when our son was 2 or 3, with no success. No matter how we adjusted the fit and the band, the plastic was stretchy enough he could pull his thumb out, and he was very determined to do so. The newer style, which we purchased last year when he turned 6, seems much more comfortable, so I definitely recommend purchasing the newer version. But, a very determined child can still get his thumb out, and furthermore, our son just started chewing and sucking on the plastic instead of his thumb. We duck taped the end of if because it got so chewed up and pieces were coming off, and finally the strap going down to the wristband broke from him pulling his thumb out. Unfortunately, after two tries this device did not work for us. I think it would work well for a child who was ready to stop sucking their thumb and just needed a reminder, but not for one who is determined not to quit.

  8. I only gave the tguard two stars because it didn’t work for my 3 year old daughter. Despite wearing it on both hands 24/7 for over 2 months she continued to have her thumb in her mouth despite getting suction. Her thumb was in all the time and the device was starting to restrict her thumb movement. We took them off but she still sucks her thumb at night. I guess we are the 10% failure rate. I do though give the company props, they are amazing, send us out new upgraded ones at no cost when she got her thumbs out of the original and the customer service has been nothing but amazing. I am just frustrated that such a highly recommend product by reviews did not work. 🙁

  9. My 3 1/2 year old daughter has been sucking her thumb since she was a few months old. I purchased the TGuard because of the reviews and for health purposes. It has been about 5 weeks since my purchase and she manages to slip it on and off whenever she pleases. I even tried tightening it as secure as possible; after a few days it began to cut into her skin. Of course, I loosened it and now we’re back to square one. She slips it off at night and during naps so we keep a close eye on her during those times. We constantly explain to her why she shouldn’t be sucking her thumb, but again it’s her long time habit. Currently, I’m considered the Aeroguard.

  10. My baby was born sucking her thumb. She sucks it for comfort, to calm-down and to go to sleep. We tried everything, and wehn I came across this product, I had very high hopes reading the reviews.
    I seemed to work at first, but after a months, she quickly realized that she was able to slip her thumb out of the device. She is 3 and wears the smallest size… We tried EVERY SINGLE SETTING, nothing works (she pulls on the tube with her teeth and is able to slip her thumb out from underneath).

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