The purpose of this study is to determine the scan quality of the direct ear scanner concerning consistency, accuracy and reliability and to compare the data to common silicone ear impressions by benchmarking the outcome of each impression technique on custom product dummies on participants.
Today's standard for ear impression techniques is the impression taking process with silicone impression material. To use the silicone impression for a hearing aid manufacturing process the geometry of the impression is needed. Modern processes scan the silicone ear impression with specific scanners. Afterwards the digitalized ear impression is uploaded in the modeling software for further proceed. A new ear impression technique is now provided with the direct ear scanner technology. The direct ear scanner can create a digital scan of the outer ear and ear canal. The scan than can directly transferred to the modeling software. The research question of this study is to determine the scan quality of the direct ear scanner concerning consistency, accuracy and reliability and to compare the data to common silicone ear impressions.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
SINGLE
Enrollment
25
Silicone impression technique
Direct Ear Scanner to scan the ear anatomy
Sonova AG
Stäfa, Switzerland
Deviation of Direct ear scanner compared to silicone impressions
Deviation of the scan of Direct ear scanner compared to silicone impressions with two viscosities \[mm\]
Time frame: 1 year
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