Focused Ultrasound Therapy

Clinical Trials SquareFocused ultrasound is an early-stage, therapeutic technology with the potential to improve the quality of life and decrease the cost of care for patients with tooth disease that requires a root canal. This novel technology focuses beams of ultrasonic energy to form a cavitation bubble in the cleaning fluid, and the resultant negative pressure greatly impacts the cleaning of the nerve root, which can positively impact the success rate and the patient’s comfort.

Conventional techniques effectively clean 29% of the nerve root, and passive ultrasound techniques may achieve 80%. The focused ultrasound cavitation bubble techniques achieved a cleanliness level reported at greater than 97%.

For more information, please see the patient information site or the manufacturer’s (Sonendo) website.


  • Improved cleaning of the nerve root
  • Preserved dentin maintenance compared to mechanical techniques
  • Easily accommodates the variable structure of the nerve root

Clinical Trials

At the present time, there are no clinical trials recruiting patients. However, a 12-month study was completed recently. 

Regulatory Approval and Reimbursement

This treatment is not yet approved by regulatory bodies or covered by medical insurance companies.

Notable Papers

Saoud TM, Mistry S, Kahler B, Sigurdsson A, Lin LM. Regenerative Endodontic Procedures for Traumatized Teeth after Horizontal Root Fracture, Avulsion, and Perforating Root Resorption. J Endod. 2016 Oct;42(10):1476-82. doi: 10.1016/j.joen.2016.04.028. Epub 2016 Aug 26.

Sigurdsson A, Garland RW, Le KT, Woo SM. 12-month Healing Rates after Endodontic Therapy Using the Novel GentleWave System: A Prospective Multicenter Clinical Study. J Endod. 2016 Jul;42(7):1040-8. doi: 10.1016/j.joen.2016.04.017.

Saoud TM, Martin G, Chen YH, Chen KL, Chen CA, Songtrakul K, Malek M, Sigurdsson A, Lin LM. Treatment of Mature Permanent Teeth with Necrotic Pulps and Apical Periodontitis Using Regenerative Endodontic Procedures: A Case Series. J Endod. 2016 Jan;42(1):57-65. doi: 10.1016/j.joen.2015.09.015. Epub 2015 Oct 31.

Molina B, Glickman G, Vandrangi P, Khakpour M. Evaluation of Root Canal Debridement of Human Molars Using the GentleWave System. J Endod. 2015 Oct;41(10):1701-5. doi: 10.1016/j.joen.2015.06.018. Epub 2015 Aug 12.

Click here for additional references from PubMed.

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