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Bibliography



Ricketts, T., Bentler, R. A., & Mueller, H. G. (2019). Essentials of modern hearing aids: Selection, fitting, and verification.

Earmold Viscosity- The texture of the earmold can have low, medium, or high viscosity. The lower type of viscosity will be soft while the higher viscosity is firm. It is thought that a higher viscosity will lead to a better impression of the ear canal while the lower viscosity may not fill in the ear canal as well. The type of viscosity to use is dependent on the person using the material and the type of viscosity they are most comfortable with.

Once the type of viscosity is chosen the person can then choose to use a pistol or syringe for pushing the earmold material in the ear. The syringes need the material mixed together until it is a singular color and then it can be pushed through the tube of the syringe. The plunger of the syringe will then be used to push the material into the smaller area. The pistol uses pre-measured impression material and requires the person to press the trigger lever for the impression material to come out.