3D-printed versus standard hearing-aid ear tips for comfort, fit, and sound

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Adults with normal hearing and healthy ear exams will try behind-the-ear hearing aids fitted with either 3D-printed or conventional ear tips during clinic visits. Researchers will compare sound quality, comfort, and fit using participant ratings and routine acoustic checks. The study will also record how long each method takes to produce and the associated costs. All testing takes place at the University of Arizona Hearing Clinic.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Normal hearing thresholds (\<25 dB HL) at octave frequencies from 250-8000Hz.
* Normal otoscopy: patent ear canals with normal appearing eardrums and aerated middle ear, bilaterally.
* English speaking.

Exclusion Criteria:

* history of extensive or current outer or middle ear pathology.
* history of extensive outer or middle ear surgery.
* history of neurological or cognitive disorder.

Where it's running

• The University of Arizona Hearing Clinic
  Tucson, Arizona, United States Recruiting

Study contacts

• Study coordinator: Bryan Wong, AuD, PhD
• Email: bryanwong@arizona.edu
• Phone: 520-626-8549

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.