iSonic F3900 Ultrasonic Cleaner Review

What it is and What it Does:

The iSonic F3900 ultrasonic dental appliance cleaner uses many tiny vibrations to rid debris from the cracks and crevasses of dental appliances.

It is important to thoroughly clean all dental appliances to make sure there is no hidden food or bacteria that may contribute to bad breath or staining, and to make sure all left over denture adhesives or cream are gone. Thoroughly cleaning dental appliances ensures their longevity when utilized in conjunction with proper use.

Features of the iSonic F3900

  • The iSonic F3900 ultrasonic frequency produces powerful vibrations that shake debris from all cracks and crevasses in the dentures, while being gentle enough to not harm the dentures themselves.
  • The removable stainless steel basin allows for easy filling, emptying and cleaning.
  • Automatic five minute cleaning cycle.
  • Uses a plug, no worry for batteries.
  • Use with a denture cleaning tablet to enhance cleaning effect.

Benefits of the iSonic F3900

  • iSonic F3900The size is perfect for table-top use.
  • Can clean dental appliances as well as jewelry, if desired.
  • Cleans where toothbrushes cannot.

Technical Specifications

  • Ultrasonic frequency: 42,000 Hz
  • Power voltage: 100 V
  • Power usage: 20W
  • Timer five minutes
  • Tank Capacity: .04 pints/200 ml
  • Max. liquid amount: .03 pints/ 140 ml
  • Overall dimensions: 4.7 x 4.7 x 7.0 in (H x W x D)
  • Tank dimensions: 3.0 x 1.5 x 3.1 in (H x W x D)
  • Shipping weight: 2 pounds

Product Features and Benefits

This multi-functional iSonic F3900 ultrasonic cleaner can be used for dental appliances as well as jewelry, and can be used with plain water or with an added tablet (or powder) to enhance the cleaning effect and the taste left behind. The preset timer allows the user to set the device up and walk away while the cleaning takes place. Cleaning the actual basin is very simple and allows for a thorough cleansing of dental appliances.


  • Thumbs_upCan be used in conjunction with cleaning tablets in the basin.
  • The basin is easy to empty out, refill, and clean.
  • Utilizes a plug instead of batteries.
  • Has a preset five minute cleaning cycle.
  • Water does not need to be preheated.


  • It will only hold one denture at a time.
  • It does make a slight vibrating sound.
  • Plug does not make for easy portability.


The benefit of using the iSonic F3900 ultrasonic dental technology to clean dental appliances goes far beyond the convenience compared to brushing. Ultrasonic vibrations gently clear debris from where toothbrushes cannot reach, resulting in added longevity and stain prevention of dental investments.

This machine can be started and then left, because the cleaning timer shuts off after five minutes. There is no worry about forgetting to turn it off and ending up with worn down dentures. Even though it can hold only one denture at a time, the cleaning time is so short that the set of dentures can be done in 10 minutes.