Structural comparison of hemifacial microsomia mandible in different age groups by three-dimensional skeletal unit analysis

Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery
Bong Chul KimSang-Hwy Lee

Abstract

The goal of this study was to understand the three-dimensional (3D) structural characteristics of hemifacial microsomia (HFM) mandible in terms of skeletal units, especially to locate the underdeveloped skeletal regions for treatment. Another goal was to compare the HFM structure of different age groups to understand growth potential relevant to treatment scheduling. We reconstructed 3D mandibles from computed tomographic images of French and Korean patients with HFM (N = 28; group II) and normal subjects (N = 27; group I). Each mandible was classified by Pruzansky's HFM types I, II and III, and by age group (child, adolescent, and adult). The mandible was divided into skeletal units, and geometrical representation by skeletal unit line was performed, including the condylar, body, coronoid, and angular units. Their length and angulations were measured and statistically analyzed. The results showed that the affected condylar unit in type II HFM and the condylar/coronoid unit in type III were smaller in young age groups than were other units. The angulation between the skeletal units in type II, though not type III, tended toward normalcy with age, but not to the normal degree of angulations in group I. Our study shows the major ...Continue Reading

Citations

May 10, 2020·Clinical Oral Investigations·Yun-Fang ChenEdwin Ongkosuwito
Nov 11, 2020·The Cleft Palate-craniofacial Journal : Official Publication of the American Cleft Palate-Craniofacial Association·Floriane RemyLionel Thollon
Feb 23, 2021·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Konstantinos ApostolopoulosManish Valiathan
May 4, 2021·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Yun-Fang ChenTong Xi
Jul 25, 2019·Annals of Anatomy = Anatomischer Anzeiger : Official Organ of the Anatomische Gesellschaft·Seong Ho MunBong Chul Kim
Aug 19, 2021·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Xiaohui QiuYan Zhang

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