Treatment of a Class I bimaxillary protrusive malocclusion with a high mandibular plane angle: An American Board of...

A case report of the orthodontic treatment of a male adolescent with a Class I bimaxillary protrusive malocclusion, complicated by a vertical growth pattern and high mandibular plane angle. Treatment consisted of extraction of maxillary second premolars, mandibular first premolars, use of a transpalatal bar, occipital pull headgear, and light wire mechanics. An acceptable result was achieved, with a decrease in the facial axis, decrease in lip strain, and an attractive full smile. This case report was presented to the American Board of Orthodontics in partial fulfillment of the requirements for the certification process conducted by the Board.