National Board Dental Hygiene Examination (NBDHE) Dental Hygienist Practice Test

A narrow, slit-like cleft in the marginal gingiva is known as what type of cleft?

1. Furcation cleft

2. Stillman's cleft

3. Marginal cleft

4. Interdental cleft

The correct answer is: Stillman's cleft

A narrow, slit-like cleft in the marginal gingiva is identified as Stillman's cleft. This specific type of cleft is associated with the loss of periodontal attachment and is often seen in areas where there has been trauma or irritation to the gums, such as from vigorous brushing or flossing. The condition manifests as a localized alteration in the marginal gingiva, which can become prominent and is typically located at the line of the gum where it meets the tooth. Understanding the characteristics of Stillman's cleft is crucial for dental hygienists, as it helps identify areas in need of intervention and education for patients about proper oral hygiene practices. Maintaining healthy gingival tissues is vital for overall periodontal health, and recognizing these features allows for better treatment planning and patient care.