What may a tooth under occlusal trauma show?

A tooth under occlusal trauma can demonstrate multiple pathological responses, making the option indicating all possible outcomes the correct choice.

Bone resorption can occur as a response to increased occlusal forces, leading to the loss of supporting bone around the tooth. This process is often a compensatory mechanism to manage the increased stress placed on the teeth and surrounding structures.

Pulp necrosis may develop as a result of trauma, particularly if the occlusal trauma is significant enough to compromise the blood supply to the pulp. Prolonged stress on the tooth can lead to inflammation and ultimately necrosis if the pulpal tissue is unable to recover.

Hypercementosis is another potential outcome of occlusal trauma. This condition involves the excessive deposition of cementum on the tooth's root surface, often as a response to increased functional demands placed on the tooth.

The presence of all these conditions illustrates the complex nature of occlusal trauma and highlights the interconnectedness of dental structures, where one condition can lead to another. Thus, selecting an option that includes all possible manifestations accurately reflects the possible outcomes seen in teeth affected by occlusal trauma.