Orthodontic treatment of open bite involved in diffuse hypercementosis

Open bite is considered one of the most complicated malocclusions in orthodontic treatment. In this study, the authors successfully treated total open bite involved in hypercementosis using orthodontic miniscrews. A woman aged 25 years 8 months had total open bite. Her occlusal contact at the maximu...

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Bibliographic Details
Published inThe Journal of the American Dental Association (1939) Vol. 152; no. 2; pp. 166 - 175
Main Authors Hichijo, Natsuko, Kudo, Yasusei, Tanaka, Eiji
Format Journal Article
LanguageEnglish
Published Elsevier Inc 01.02.2021
Subjects
hypercementosis
miniscrew
Open bite
miniscrew
hypercementosis
Open bite
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Summary:Open bite is considered one of the most complicated malocclusions in orthodontic treatment. In this study, the authors successfully treated total open bite involved in hypercementosis using orthodontic miniscrews. A woman aged 25 years 8 months had total open bite. Her occlusal contact at the maximum intercuspation was present at the right second molars. A panoramic radiograph showed diffuse hypercementosis. The titanium miniscrews were interradicullay implanted between the first and second molars, and intrusion force was applied for 14 months. After active treatment, the patient’s maxillary first molars showed about 1.6-millimeters of intrusion, resulting in counterclockwise mandibular rotation. Her acceptable occlusion was maintained after 1.0-year retention. Miniscrews might be useful tool to improve malocclusion involved in diffuse hypercementosis though they are considered to be difficult to move and brought on ankylosis.
ISSN:0002-8177
1943-4723
DOI:10.1016/j.adaj.2020.08.014