American Board of Orthodontics (ABO) Practice Exam 2026 - Free Orthodontics Practice Questions and Study Guide

The assertion regarding the influence of Invisalign bite blocks on molar intrusion and bite deepening being false relates to the fundamental mechanics of how Invisalign aligners function. Invisalign utilizes a system of clear aligners that exert pressure on the teeth to move them into the desired position. While bite blocks can be designed to provide specific occlusal guidance, they do not typically facilitate significant intrusion of the molars.

Research and clinical practice indicate that while some tooth movement can occur within the Invisalign system, the extent of molar intrusion is limited compared to traditional orthodontic appliances like fixed appliances or selective anchorage devices. Additionally, bite deepening is influenced by various factors, including the vertical relationship of the dental arcs and the overall treatment plan tailored to the patient. Therefore, it is more accurate to assert that the usage of bite blocks with Invisalign does not lead to significant changes in molar position or bite depth on a broad basis.

In summary, the mechanics of Invisalign and the limitations inherent in its design support the notion that there isn't significant molar intrusion or bite deepening attributed to the use of bite blocks.