Which statement about internal and external resorption is true?

The correct statement regarding internal and external resorption is that both statements in the options are indeed false. Internal resorption is generally less common than external resorption, which is process where the resorption occurs primarily through the external surface of the tooth, often associated with factors such as trauma, orthodontic movement, or dental diseases.

Furthermore, internal resorption typically happens when the pulp is vital, meaning that the pulp is healthy and alive. This condition often arises due to trauma or inflammation affecting the pulp, not due to a necrotic pulp. Understanding these distinctions is vital in dental practice, especially in diagnosis and treatment planning related to pulp health and tooth integrity. The nuances between the two types of resorption reflect important pathology considerations in dentistry.