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Evaluation of Modified Bite-Block for Invasive Imaging Procedures

Evaluation of Modified Bite-Block vs Standard Bite Block for Invasive Imaging Procedures

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04236297
Enrollment
50
Registered
2020-01-22
Start date
2019-08-22
Completion date
2020-12-31
Last updated
2022-04-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bite Block

Keywords

bite block, transesophageal echocardiography

Brief summary

The purpose of this study is to compare a modified bite block with standard bite block during transesophageal echocardiography procedures in patients who are either sedated or under general anesthesia. These dental protector devices are class I devices which are exempt from the FDA 510(k) premarket notification requirements.

Detailed description

Bite block is a single-use medical device used to keep the mouth open during invasive imaging procedures and prevent the patient from biting the imaging probe. The purpose of this study is to compare a modified bite block with standard bite block during transesophageal echocardiography exam procedures in patients who are either sedated or under general anesthesia. The commercially available bite blocks are almost exclusively made of hard plastic that does not conform well to the patient's mouth with additional protrusions used to secure the bite block in place that have the potential to cause patient injury. Hard plastic is used to prevent patient from biting down on the imaging probe while side protrusions are used to strap the bite block down to prevent dislodgment. Modified bite block is made of softer material with improved mouth fit and no need for strapping the bite block to keep it in place. Softer material is more comfortable while the designs mimics mouth guard used in dentistry to protect patient's teeth and keep the bite block in place while sleeping. The specific aims of this project include: * assessment of patient comfort during invasive imaging procedure * assessment of provider satisfaction with the bite block * assessment of patient lip/gum/teeth injury after bite block use * assessment of imaging probe damage after procedure * assessment of bite block's ability to stay in place during procedure

Interventions

DEVICEbite block

Physicians performing transesophageal echocardiogram in patients under sedation or general anesthesia will use either standard or modified bite block.

Sponsors

University of Washington
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* 18 years of age or older * Undergoing stand-alone transesophageal echocardiography exam under sedation or general anesthesia * Undergoing procedure that requires transesophageal echocardiography exam during the procedure under general anesthesia * Cardiology and cardiac anesthesiology echocardiographers performing transesophageal echocardiography exam who wish to participate

Exclusion criteria

* Less than 18 years of age * Any procedure that does not require transesophageal echocardiography exam during the procedure

Design outcomes

Primary

MeasureTime frameDescription
Oral injuryWithin 24 hoursNumber of participants with oral injury (dental injury, lacerations/bruises on gums and lips) which will be determined by examination

Secondary

MeasureTime frameDescription
DislodgmentWithin 24 hoursNumber of participants with bite block dislodgment which will be determined by provider questionnaire
Provider satisfactionWithin 24 hoursNumber of providers that would use standard or redesigned bite block again

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026