In which area is the width of attached gingiva typically the narrowest?

The width of attached gingiva is typically the narrowest in the area of the premolars. This anatomical feature is important because attached gingiva plays a crucial role in periodontal health, providing a firm tissue that resists mechanical forces and supports the marginal gingiva.

In the maxillary arch, the attached gingiva is generally wider in the incisor and molar areas due to their position and the underlying dental structures. Conversely, in the premolar region, particularly in the mandible, the width can decrease due to the proximity to the mucogingival junction and the presence of a more thinly attached gingival tissue. This narrow band of attached gingiva in the premolar area might contribute to a higher susceptibility to recession and other periodontal issues compared to the surrounding regions where the gingiva is typically more robust.

Understanding the variations in gingival width across different dental arches helps clinicians in planning for periodontal assessments and interventions, particularly when considering the aesthetic and functional implications for patients.