Journal of Dental Rehabilitation and Applied Science (구강회복응용과학지)

Korean Academy of Stomatognathic Function and Occlusion (대한턱관절교합학회)
권호 표지

Skeletal Changes Following Application of RME at Different Maturation Stages

골격적 성숙도의 차이에 따라 RME 사용시 나타나는 상악골 복합체의 변화

  • Han, Soon-Ki (Department of Orthodontics, School of Dentistry, Dankook University) ;
  • Chung, Dong-Hwa (Department of Orthodontics, School of Dentistry, Dankook University) ;
  • Cha, Kyung-Suk (Department of Orthodontics, School of Dentistry, Dankook University)
  • 한순기 (단국대학교 치과대학 교정학실) ;
  • 정동화 (단국대학교 치과대학 교정학실) ;
  • 차경석 (단국대학교 치과대학 교정학실)
  • Published : 2007.12.30
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Abstract

The purpose of this study was to analyse the stress distribution on the craniofacial suture and cranium after application of RME. Twelve years and six months old boy and twenty years old adult male were chosen for taking computed-tomography for FEM. From DICOM visual information, it was processed by 3-dimensional image construction program Mimics 10.01. Hounsfield unit(HU) which shows gray scale of CT image is picked for revealing mechanical properties of each model. The models have been accomplished with various range of physical properties. After applying 5.0 mm expansion, the maxillary complex model was obeserved for analyzing displacement and stress distribution of the model. The amount of transverse expansion of child and adult maxilla is different according to its location. It appears that it decreases gradually with the distance from separation site. In child, maximum compressive stress located broad area in zygomatic buttress department and the ends of frontal process of maxilla, pterygoid plate, and bones surrounding orbit. However, in adult maximum compressive stress was located smaller area and the stres was higher than child.

Keywords

References

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