The korean journal of orthodontics (대한치과교정학회지)

The Korean Association Of Orthodontists (대한치과교정학회)
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Treatment and retention of relapsed anterior open-bite with low tongue posture and tongue-tie: A 10-year follow-up

  • Seo, Yu-Jin (Department of Orthodontics, School of Dentistry, Kyunghee University) ;
  • Kim, Su-Jung (Department of Orthodontics, School of Dentistry, Kyunghee University) ;
  • Munkhshur, Janchivdorj (Department of Orthodontics, School of Dentistry, Kyunghee University) ;
  • Chung, Kyu-Rhim (Department of Orthodontics, School of Medicine, Ajou University) ;
  • Ngan, Peter (Department of Orthodontics, School of Dentistry, West Virginia University) ;
  • Kim, Seong-Hun (Department of Orthodontics, School of Dentistry, Kyunghee University)
  • Received : 2014.03.28
  • Accepted : 2014.05.12
  • Published : 2014.07.25
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Abstract

The purpose of the current report is to present 6-year long-term stability and 10-year follow-up data for an adult patient who was treated with a tongue elevator for relapsed anterior open-bite. The 19-year-old male patient presented with the chief complaint of difficulty in chewing his food. Collectively, clinical and radiographic examinations revealed an anterior open-bite, low tongue posture, and tongue-tie. The patient opted for orthodontic treatment alone, without any surgical procedure. A lingual frenectomy was recommended to avoid the risk of relapse, but the patient declined because he was not experiencing tongue discomfort. Initial treatment of the anterior open-bite with molar intrusion and tongue exercises was successful, but relapse occurred during the retention period. A tongue elevator was used for retreatment, because the approach was minimally invasive and suited the patient's requirements regarding discomfort, cost, and time. The appliance changed the tongue posture and generated an altered tongue force, which ultimately resulted in intrusive dentoalveolar effects, and a subsequent counterclockwise rotation of the mandible. The results showed long-term stability and were maintained for six years through continual use of the tongue elevator. The results of this case indicated that a tongue elevator could be used not only as an alternative treatment for open-bite, but also as an active retainer.

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