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논문 기본 정보

자료유형
학술저널
저자정보
Youngjoo Lee (Wonkwang University College of Dentistry) Jae Hyun Park (A.T. Still University) Na-Young Chang (Wonkwang University College of Dentistry) Mi-Young Lee (Seoul National University Gwanak Dental Hospital) Bong Chul Kim (Wonkwang University Daejeon Dental Hospital) Hye Young Seo (Wonkwang University College of Natural Sciences) Utkarsh Mangal (Yonsei University College of Dentistry) Jong-Moon Chae (Wonkwang University Daejeon Dental Hospital)
저널정보
대한치과교정학회 대한치과교정학회지 대한치과교정학회지 제50권 제3호
발행연도
2020.5
수록면
157 - 169 (13page)

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초록· 키워드

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Objective: The aim of this retrospective study was to evaluate the pre- and postsurgical bone densities at alveolar and extra-alveolar sites following twojaw orthognathic surgery. Methods: The sample consisted of 10 patients (mean age, 23.2 years; range, 18.0–27.8 years; 8 males, 2 females) who underwent two-jaw orthognathic surgery. A three-dimensional imaging program (Invivo 5) was used with multidetector computed tomography images taken preand postoperatively (obtained 32.3 ± 6.0 days before surgery and 5.8 ± 2.6 days after surgery, respectively) for the measurement of bone densities at the following sites: (1) alveolar bone in the maxilla and mandible, (2) extra-alveolar sites, such as the top of the head, menton (Me), condyle, and the fourth cervical vertebrae (C4). Results: When pre- and postsurgical bone densities were compared, an overall tendency of decrease in bone density was noted. Statistically significant reductions were observed in the densities of cancellous bone at several areas of the maxillary alveolar bone; cortical and cancellous bone in most areas of the mandibular alveolar bone; cortical bone in Me; and cancellous bone in C4. There was no statistically significant difference in bone density in relation to the depth of the alveolar bone. In a comparison of the bone densities between groups with and without genioplasty, there was almost no statistically significant difference. Conclusions: Accelerated tooth movement following orthognathic surgery may be confirmed with reduced bone density. In addition, this study could offer insights into bone metabolism changes following orthognathic surgery, providing direction for further investigations in this field.

목차

INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
CONCLUSION
REFERENCES

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UCI(KEPA) : I410-ECN-0101-2020-515-000680097