Australian Dental Council (ADC) Practice Test

The resorption of molar bone is influenced by various factors, including the anatomical differences between the maxilla and mandible. In general, after tooth extraction, the process of bone resorption occurs more significantly in certain areas due to the anatomical structures and the stresses placed on the bone.

For mandibular molars, resorption tends to be greater on the lingual side. This is because the position of the tongue and the attached muscles generates forces that can affect the bone's structural integrity and its ability to maintain volume. Additionally, the mandibular bone experiences greater functional forces through occlusion, which can also lead to more pronounced resorption in areas that are less loaded, like the lingual aspect of the ridge.

This pattern reflects the biological response of the bone to changes in functional loading after the removal of teeth. The anatomical structure of the mandible typically leads to a more pronounced resorption on the lingual side for both aesthetic and functional reasons, which is why this option accurately describes the resorption pattern post-extraction. Understanding these patterns is crucial for dental practitioners when planning procedures such as implants or grafts, as it informs strategies to mitigate further bone loss.