Treatment of anterior open bite in a patient with Angle Class II malocclusion, atypical tongue posture and mouth breathing

Daniela Feu

Introduction: Occasionally, due to deleterious habits, the anterior open bite may persist even after the removal of the primary etiological factor, due to the atypical positioning of the tongue, which makes this malocclusion very recurrent. Case report: The present article reports the clinical case of an 8-year-old patient who presented Angle Class II malocclusion, 4.4-mm anterior open bite, atypical tongue posture, oral-nasal breathing and negative boarderline discrepancy in the maxillary arch. Results: The interdisciplinary treatment involved Otorhinolaryngology, Speech Therapy, Surgery and Orthodontics. The interceptive treatment changed the pattern of habits and behaviors and the subsequent orthodontic treatment, which involved extraction of premolars, led to satisfactory and stable aesthetic and functional results, with a subtle deepening of the overbite twenty-eight months after the end of treatment. Conclusion: At the end of the treatment, the closure of the open bite was satisfactorily achieved, fully meeting the patient’s expectations and obtaining a great aesthetic and functional improvement, with stability. This clinical case was presented to the Bra- zilian Board of Orthodontics and Facial Orthopedics (BBO), as part of the requirements for obtaining the title of BBO Diplomate.

Keywords: Open bite. Mouth breathing. Class II malocclusion.

How to cite: Feu D. Treatment of anterior open bite in a patient with Angle Class II malocclusion, atypical tongue posture and mouth breathing. Clin Orthod. 2021 Feb-Mar;20(1):123-38.

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