A. Direct resorption happens on the tension side. B. The applied force is too light. C. The applied force cuts off blood supply to the PDL, causing hyalinization, and bone is resorbed from the marrow side. D. The tooth moves too quickly. Answer: C Explanation: When excessive force is applied, the PDL is compressed to the point of occluding blood vessels (hyalinization). Since bone cells cannot survive, osteoclasts must attack the bone from the underside (marrow side), delaying tooth movement.
While the official textbooks—those heavy, hardbound tomes detailing the history of Angle’s classification and the intricacies of craniofacial growth—sit on the shelf looking impressive, the real work happens in the margins of the PDF. orthodontics mcqs pdf
: Focuses on the basics of occlusion and prevalence, hosted on Course Hero . The applied force is too light