ABSTRACT

This case report describes the treatment of a 17 years and 2 months old male patient presenting vertical discrepancy, with severe anterior open bite and Class II subdivision malocclusion with a history of dummy sucking and mouth breathing. The patient showed a straight type in lateral profile and his lips were incompetent at rest. He had an anterior open bite of 8 mm, an overjet of 6 mm. In consultation with the patient and his parents, a nonsurgical therapy was elected and the goals were; to close the anterior open-bite and to achieve a good function and esthetic. By extraction of maxillary and the first molar, usage of maxillary bite plate with occipital headgear and usage of the rectangular arch wire with reverse curve of Spee applied to the mandible and increased curve of Spee (0.016x0.022”) rectangular arch wire applied to the maxillary arch open bite was eliminated.As a result,the patient was treated successfully with suitable nonsurgical treatments.