American Board of Dental Examiners (ADEX) Dental Hygiene Licensing Examination 2025 – 400 Free Practice Questions to Pass the Exam

The correct answer, which indicates that the minimum width required for each strap in a palatal strap design is 6 mm, is based on the design and functional requirements of dental appliances. A palatal strap is commonly used in various dental prosthetics, such as partial dentures, to provide stability and support by engaging the palatine area of the mouth.

The choice of 6 mm as the minimum width ensures that the strap has adequate strength and surface area to distribute forces evenly, thus reducing the risk of fractures or failure during normal function. A strap that is too narrow may not provide sufficient support or may lead to discomfort for the patient, as it can exert excessive pressure on the underlying tissues.

In contrast, while options like 4 mm, 5 mm, and 8 mm suggest varying widths, they do not meet the criteria as effectively. A width of 4 mm or 5 mm may compromise the structural integrity of the design, leading to potential breakage or discomfort. A width of 8 mm, while robust, may exceed the necessary dimensions for effective performance and may also complicate the fit within the patient's oral cavity.

Thus, a strap width of 6 mm strikes an optimal balance between durability and comfort in the design of pal