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

The assertion that early treatment in severe Class II pre-adolescent patients is more efficient than single-phase treatment in adolescents is not supported by the current understanding of orthodontic treatment timing. In many cases, early intervention might not resolve the underlying skeletal discrepancies and could lead to the need for further treatment later.

Single-phase treatment in adolescents allows for a comprehensive approach, as growth patterns and dental developments are better understood, and orthodontic mechanics can be more effectively applied at that stage. This approach often results in more predictable outcomes without the need for additional phases of treatment.

Additionally, while early treatment can be beneficial in certain circumstances—such as alleviating severe functional issues or preventing further dental problems—it is generally recognized that it may not always be as efficient or effective as a well-timed single-phase treatment approach later during adolescent growth. Thus, early intervention may not provide the same level of success in managing complex cases when compared to waiting for adolescent treatment, leading to the conclusion that the statement is false.