iSonic F3900 Ultrasonic Denture Cleaner Review for 2018

iSonic F3900 Ultrasonic Denture Cleaner Review for 2018

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iSonic is one of the big and trusted names when it comes to ultrasonic denture cleaners. The F3900 model has been around for awhile, and with a 1-year warranty, is guaranteed to make everyone happy.


  • Easy to use
  • 5 cleaning cycles
  • Dentist recommended


  • Needs extended warranty

About The iSonic F3900 Denture And Mouth Guard Ultrasonic Cleaner

Make your friends and family jealous that you have dentures. Now, you can simply pop out your dentures, drop them in an ultrasonic cleaner, and have that $100 professionally clean mouth in seconds for pennies.

It might sound silly, but for a few years now, many denture wearers have turned to ultrasonic jewelry cleaners to do their “dirty” work. The snag was that the dimensions and accessories were never quite the right fit for dentures.

Even more so, it always begged the question of what kind of soap to use. Dish detergents are OK on dishes, but is that safe when used with ultrasonic cleaning when the device will be worn in the mouth?

The iSonic F3900 uses sound waves to effectively and efficiently blast debris and dirt off of dentures. It provides a deep clean unlike any other, without requiring any chemicals. Use it with or without special cleaner.

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Made of white plastic and stainless steel, the compact 24-watt, 100 to 120-volt counter-top cleaner is 4 inches tall, 7 inches wide, and 4 inches long. It is relatively light, weighing in at only 2 pounds. It is the smallest profile true ultrasonic denture cleaner on the market.

It is small enough and good-looking enough to keep out on the counter for everyday usage. It is powerful at 42,000 Hertz of ultrasonic cleaning power.

It has one button, which makes it very easy to operate. It easily accommodates the upper and lower dentures at the same time.

It will also suit removable braces, partials, and retainers. Even consumers who have night guards and mouth guards can get them clean using the power of an ultrasonic cleaner made just for mouth products.

Do make a note that where there are attached top and bottom or over-sized dentures, look for the Magnasonic MGUC500 instead. For a couple or a few people in the same household who want to use the same machine at the same time, buy iSonic #P4801 and separate the dentures into separate cups or containers.


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The iSonic brand Denture Cleaning Powder makes this product the standout among all ultrasonic denture cleaning machines. The reason is that many companies falsely claim to sell ultrasonic products, but mislead the public.

This is the real deal and it is able to thoroughly bring old, dirty dentures back from the brink to like new condition in one 5-minute cleaning cycle. In that time you could wash your face, clean your contacts, and get ready for bed.

Meanwhile, the denture cleaner will go deep to pop away ingrained stains. It is such a thorough clean, people are surprised by what has been left behind in the water afterward. They share their horror online with before and after pictures.

Be ready to both be amazed and alarmed. And, of course, take plenty of pictures.

The iSonic Ultrasonic Denture F3900 Cleaner contains a transducer. The transducer emits ultrasound that creates lots of air bubbles throughout the water. The sound waves pop the bubbles, which makes vacuum suction to pull the dirt off of the dentures.

The reason it is so effective for dentures as opposed to brushing alone is that the burst bubbles get into the nitty gritty and hard-to-reach nooks and crannies of the devices. It is much safer and much more effective than taking a questionably clean toothbrush to the dentures.


It is simple to clean dental appliances with this unit. Just add water, cleaning powder, and dentures and then press the start button. It will feel as if you just went to the dentist for a professional cleaning, without the price tag or hassle.

One helpful hint is that the device will work fine with water alone at removing dirt and debris. Though, to scrub through layers of stains for a whiter and brighter smile, use the denture cleaning powder.

Whether you eat a lot of berries, smoke, chew tobacco, or drink a lot of coffee those stains will be history with the iSonic. To ensure hygienic clean on a daily basis, use the denture powder.


It turns out that because it is an ultrasonic cleaner, it will very effectively rid eyeglasses and jewelry of tough-to-clean debris, grease, and grime for a truly deep clean. Many people use a drop of dish soap for squeaky fresh clean results.



The iSonic F3900 is an ultrasonic cleaner designed especially with mouth devices in mind. It is ideal for cleaning removal braces, mouth guards, night guards, retainers, dentures, and partials. For larger items, buy a different model of the iSonic that will accommodate larger sized items.

For a thorough clean that is hygienic, use the iSonic brand denture cleaning powder. It will remove debris as well as tough and tenacious stains.

Author: Peter Mayhew

Peter is a dental hygienist in the city of Chicago, IL. In his free time he likes to write blogs and product reviews on anything dental health related.

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