We use cookies to understand how you use our site and to improve your experience. This includes personalizing content and advertising. To learn more, click here. By continuing to use our site, you accept our use of cookies. Cookie Policy.

Features Partner Sites Information LinkXpress
Sign In
Advertise with Us

Download Mobile App


ATTENTION: Due to the COVID-19 PANDEMIC, many events are being rescheduled for a later date, converted into virtual venues, or altogether cancelled. Please check with the event organizer or website prior to planning for any forthcoming event.
30 Jan 2023 - 02 Feb 2023

Oral Stents Immobilize Tongue during Radiotherapy

By MedImaging International staff writers
Posted on 24 Apr 2019
Print article
Image: The GrayDuck customized tongue-displacing dental stent (Photo courtesy of CIVCO Radiotherapy).
Image: The GrayDuck customized tongue-displacing dental stent (Photo courtesy of CIVCO Radiotherapy).
New tongue displacing stents provide custom oral positioning with repeatable tongue deviation during radiotherapy (RT).

The POLL Medical (Beaverton, OR, USA) GrayDuck Stent is a customized tongue-displacing dental stent (CTDS) aimed at improving RT treatment and outcomes by sparing the tongue, taste buds, and salivary glands from unnecessary radiation. The stent provides rigid and reproducible immobilization of the tongue, restraining movement in one of several positions; laterally (left or right), depressing (downward), or a combination thereof. The anterior portion can also be attached to a thermoplastic facemask. The GrayDuck CTDS is distributed worldwide via CIVCO Radiotherapy.

The CTDS is intended to be used for repeat positioning of the patient’s tongue and jaw while undergoing or receiving a course of external beam radiation therapy (EBRT) for cancer and other diseases. Requiring less than 10 minutes, the ethylene-vinyl acetate (EVA) stent is custom-fitted by placing it in hot water for two minutes before placing in the patient’s mouth to custom form the teeth. The polycarbonate paddle type is then selected for the appropriate tongue deviation and snapped into the universal joint/gimbal, and adjustments are made as necessary to ensure proper paddle placement and patient tolerance.

“The GrayDuck Stent offers patients undergoing RT for head and neck cancers a safer treatment experience by sparing the tongue from unnecessary damage. No other device on the market offers the ability to customize the positioning of the tongue away from the radiation field,” said Adrian Polliack, CEO of POLL Medical. “POLL Medical is thrilled to partner with CIVCO Radiotherapy, whose global reach will afford many radiotherapy patients around the world access to the GrayDuck Stent.”

Reproducible positioning of the patient over multiple rounds of RT demands reliable immobilization for an accurate and consistent treatment setup. The use of low-temperature thermoplastic materials in order to effectively immobilize movement reduces the amount of time that it may take to receive RT and minimizes unwanted side effects such as damage to the skin, the upper digestive tract, and rampant caries due to damage to saliva glands.

Related Links:
POLL Medical

Gold Supplier
Ultrasound Transducer/Probe Cleaner
Transeptic Cleaning Solution
Ultrasound System
Sonosite LX
POC Ultrasound System
Acclarix AX3
Hand-Held Bidirectional Vascular Doppler
Bidop 7

Print article



view channel
Researchers used AI to triage patients with chest pain (Photo courtesy of Pexels)

First Deep Learning AI Model Triages Patients with Chest Pain Using X-Rays

Acute chest pain syndrome can involve tightness, burning or other discomfort in the chest or a severe pain that spreads to the back, neck, shoulders, arms, or jaw, accompanied by shortness of breath.... Read more


view channel
Image: Dr. Derek Cool demonstrating the new robotic 3D ultrasound system (Photo courtesy of Lawson Health)

Robotic 3D Ultrasound System Improves Accuracy of Liver Cancer Treatment

Liver cancer is the fourth-leading cause of cancer death in the world. Surgery is one treatment option for liver cancer, although thermal ablation which uses heat to destroy the cancerous tumor has less... Read more

General/Advanced Imaging

view channel
Image: The HIAS-29000 brain PET scanner with motion correction (Photo courtesy of Hamamatsu Photonics)

New Brain PET Scanner Corrects Blurring in Images Caused by Body Motion

Ordinary brain PET (positron emission tomography) scanners are unable to accurately measure the distribution of radiopharmaceuticals in the brain if the patients move their head during the examination process.... Read more

Imaging IT

view channel
Image: The new Medical Imaging Suite makes healthcare imaging data more accessible, interoperable and useful (Photo courtesy of Google Cloud)

New Google Cloud Medical Imaging Suite Makes Imaging Healthcare Data More Accessible

Medical imaging is a critical tool used to diagnose patients, and there are billions of medical images scanned globally each year. Imaging data accounts for about 90% of all healthcare data1 and, until... Read more
Copyright © 2000-2023 Globetech Media. All rights reserved.