J Korean Acad Pediatr Dent > Volume 49(2); 2022 > Article
Journal of the Korean Academy of Pediatric Dentistry 2022;49(2):234-240.
DOI: https://doi.org/10.5933/JKAPD.2022.49.2.234    Published online May 31, 2022.
Dental and Skeletal Characteristics and Behavioral Aspects of the Patient with Floating-Harbor Syndrome Compared with Twin Sister
Jonghwa Lim, Gimin Kim, Jaesik Lee, Soonhyeun Nam, Hyunjung Kim
Department of Pediatric Dentistry, School of Dentistry, Kyungpook National University 
Correspondence:  Hyunjung Kim,  Tel: +82-53-600-7201, Fax: +82-53-426-6608, Email: jungkim@knu.ac.kr
Received: 8 October 2021   • Revised: 2 December 2021   • Accepted: 10 November 2021
This article has been retracted.
Floating-Harbor syndrome (FHS) is a rare genetic disorder. This report introduced in a patient with FHS. Distinctive facial characteristics, severe skeletal class 3 malocclusion with underdeveloped maxilla and protruded mandible, congenital missing teeth, microdontia and ectopic positions of maxillary teeth were presented in the patient. In his twin sister, mild skeletal class 3 malocclusion with protruded mandible was observed but congenital missing teeth and microdontia were not observed. High-arched palate, narrow V-shaped maxillary arch compared to wide and ovoid mandibular arch and inverse relationship between the maxillary and mandibular intermolar width resulted in posterior crossbite were confirmed by model analysis of the patient. These were not observed in the twins. Behaviorally, poor cooperation during dental treatment because of mental retardation was observed in the patient.
Key Words: Floating-Harbor syndrome, Dental and skeletal characteristics, Behavioral aspects, Twins

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