Which periodontal fibers are the most resistant to periodontitis?

The transseptal fibers are considered the most resistant to periodontitis because of their specific anatomical location and function within the periodontium. These fibers run between the teeth, spanning the interdental space, and play a critical role in maintaining the integrity of the periodontal attachment as well as the overall stability of adjacent teeth.

Their positioning allows them to provide vertical support against the forces of occlusion and prevent mesial or distal movement of the teeth, reducing the likelihood of periodontal breakdown in areas that are crucial for periodontal health. Because they are more firmly anchored in relation to both teeth and the bone, transseptal fibers can better withstand the inflammatory processes associated with periodontitis compared to other periodontal fibers.

In contrast, other types of periodontal fibers like transgingival, intergingival, and circular fibers serve different functions, often pertaining to the stabilization and mobility of the gingiva rather than directly supporting the periodontal attachment. These fibers are subjected to greater stress and can be more readily impacted by periodontal disease, making them less resistant overall to the effects of periodontitis.