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Scientific Research & Clinical Research
Characterization of Oral Stent Stability in a Radiotherapy Environment.  RG Price, B Kuykendall, U Parvathaneni, G Sandison.  AAPM 2017 Annual Meeting.
 
 
 
 
 
An independent study was conducted by the University of Washington's Radiation Therapy Department which showed the GrayDuck Stent to be physically stable and non-deforming over repeated use and irradiation (simulating a course of treatment)  ​
 
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Customized Tongue-Displacing Dental Stents for Oral Mucosal Sparing and Immobilization in Head and Neck Radiotherapy.  LR Sales, J Liao, B Johnson, A Winston, G Laramore, U Parvathaneni.  ASTRO 2011 Annual Meeting. S493

                                                          

                                               53rd Annual Meeting

                                                   American Society of Therapeutic Radiology & Oncology 

                                                   Miami Beach, October 2-6, 2011

A study was conducted by the University of Washington's Radiation Therapy Department which showed that customized tongue-displacing oral stents achieved superior oral mucosal sparing compared to what is achievable by conformal planning alone. The authors documented that the stents provided reproducible immobilization, were well-tolerated, and could be    readily incorporated into clinical practice.  Specifically, the use of custom stents demonstrated that an estimated mean of 10% of the displaced oral mucosal volume avoided exposure to 70 Gy, 22% avoided 66 Gy, 56% avoided 50 Gy, and 79% avoided 35 Gy.

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Fabrication of customized tongue displacing stents. Considerations for use in patients receiving head and neck radiotherapy.  B Johnson, DDS, MS; L Sales, MD; A Winston, DDS; J Liao, MD; G Laramore, PhD, MD; U Parvathaneni, MD, BS.  J. American Dental Association. 2013;144(6):594-600.
 
 
 
 
A study was conducted by Johnson et al describing custom tongue displacing stent construction for both tongue-deviating and tongue-depressing applications. The investigators showed that the stents enabled clinicians to achieve more predictable and consistent radiation dosimetry planning while sparing greater volumes of healthy mucosal tissue from damage. They also demonstrated reproducible immobilization, showed patient tolerance of the stent and found the device to be readily utilized into the clinical practice of radiation.  
 
The authors found the device could lead to better outcomes and improved quality of life for patients receiving head and neck radiation therapy.  
 
The authors have all since begun using GrayDuck Stents in their clinical practice.