What is a common result of occlusal traumatism in the periodontium?

Increased mobility of teeth is a common result of occlusal traumatism in the periodontium because when there is an imbalance in occlusion, it can lead to excessive forces on the teeth. These forces can disrupt the attachment of the periodontal fibers, weaken the supporting bone, and compromise the integrity of the periodontal ligament. This results in a loss of support, causing the teeth to become more mobile.

In contrast, the other options might occur in different periodontal conditions but are not directly linked to occlusal traumatism. Formation of gingival pockets is more associated with inflammation and periodontal disease rather than specifically with occlusal trauma. Angled bone resorption does not typically occur due to occlusal forces, as resorption patterns usually relate to the systemic and local periodontal status rather than mechanical stresses alone. Thickening of the periodontal membrane can occur as a response to various stimuli, but it is not a direct result of occlusal traumatism in the same way that increased mobility signifies a loss of support for the teeth.