Correction of severe overbite and gummy smile in patients with

The treatment of severe overbite and an accompanying “gummy smile” with high-pull J-hook headgear and a modified intrusion archwire is described. means, including extrusion of posterior teeth, flaring of lingually tipped anterior teeth, intrusion of incisors, and orthognathic surgery.1-3 The tendency of the teeth to move vertically during orthodontic treatment, however, necessitates careful design of the force system to avoid negative effects on the profile.4-7 Posterior extrusion is inappropriate for long-face patients because it will rotate the mandible clockwise and thus worsen the Class II relationship.4,7-9 Incisor intrusion can control the vertical dimension and is therefore indicated in a patient with long-face syndrome, excessive upper incisor exposure, a high gingival smile line, and a deep curve of Spee.2,8 This article describes the treatment of severe overbite and an accompanying “gummy smile” with high-pull J-hook headgear and a modified intrusion archwire. Case Report

Post-treatment facial and intraoral photographs. The facial profile has

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Correction of severe overbite and gummy smile in patients with

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