Actively Recruiting
Effectiveness Comparison of 3D-Printed and Conventional Ear Tip Comfort in Individuals With Hearing in the Normal Range
Led by University of Arizona · Updated on 2026-05-01
30
Participants Needed
1
Research Sites
31 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
Access to affordable and timely hearing healthcare remains a major challenge for many individuals, partly due to the high cost and long turnaround time. This study will explore whether 3D-printed ear tips perform as well as or better than standard ear tips in terms of sound quality, comfort, and fit. It will also compare how long each method takes to make and how much each costs.
CONDITIONS
Official Title
Effectiveness Comparison of 3D-Printed and Conventional Ear Tip Comfort in Individuals With Hearing in the Normal Range
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Normal hearing thresholds below 25 dB HL at octave frequencies from 250 to 8000 Hz
- Normal ear examination with open ear canals and healthy eardrums on both sides
- Able to speak English
You will not qualify if you...
- History of extensive or current outer or middle ear disease
- History of extensive surgery on the outer or middle ear
- History of neurological or cognitive disorders
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Trial Site Locations
Total: 1 location
1
The University of Arizona Hearing Clinic
Tucson, Arizona, United States, 85719
Actively Recruiting
Research Team
B
Bryan Wong, AuD, PhD
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
RANDOMIZED
Model
CROSSOVER
Primary Purpose
TREATMENT
Number of Arms
3
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