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

Question: 1 / 400

What is the required distance of a lingual bar from the gingival margin?

2 mm

3 mm

The requirement for a lingual bar to be positioned at an appropriate distance from the gingival margin is vital for maintaining oral health and ensuring the comfort of the patient. A distance of 3 mm from the gingival margin is recommended to allow sufficient space for the natural movement of the soft tissues, such as the tongue, and to avoid any potential irritation or trauma to the gum tissues.

Additionally, this spacing helps to facilitate proper oral hygiene, ensuring that the patient can effectively clean their teeth and the area around the bar without obstruction. Proper placement minimizes the risk of periodontal issues, promotes better oral hygiene practices, and enhances the overall comfort of the dental prosthesis. This distance is established based on clinical observations and standard practices within dentistry, balancing the needs of retention and patient comfort.

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4 mm

5 mm

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