Dental OSCE (Objective Structured Clinical Examination) Practice Exam

What is the normal width of buccal keratinized tissue in the mandibular area?

1. 1-2 mm

2. 2-3 mm

3. 3-4 mm

4. 4-5 mm

The correct answer is: 3-4 mm

The normal width of buccal keratinized tissue in the mandibular area is typically in the range of 3-4 mm. This keratinized tissue plays a crucial role in providing mechanical protection to the underlying mucosa, especially in areas subject to mechanical injury from mastication or potential trauma from dental procedures. Adequate width of keratinized tissue is also significant for periodontal health, as it helps to create a stable attachment for the gums, contributing to the overall integrity of the periodontium. This measurement is critical when planning for periodontal surgeries, orthodontic treatments, or implant placements, as insufficient keratinized tissue may lead to mucosal recession or other complications. Therefore, understanding the normal dimensions helps clinicians assess the periodontal condition and make informed treatment decisions. The ranges outside of 3-4 mm may indicate either insufficient keratinized tissue for optimal periodontal health or the presence of pathological conditions that warrant further evaluation.