지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.12
- 수록면
- 39 - 47 (9page)
이용수
초록· 키워드
오류제보하기
Purpose: This study was aimed to evaluate whether the size of the changed area included in the registration area affects the validity of superimposition in three-dimensional (3D) images.
Materials and Methods: Ten mannequin heads which were sectioned to simulate maxillary and mandibular setback surgery were used. A total of 30 images, including 10 initial images, 10 images after moving both middle and lower faces, and 10 images after moving only lower face, were obtained. The 9 landmarks which consisted of the bilateral and midline landmarks of the upper, middle, and lower faces respectively were used. Each 3D image obtained after simulation was superimposed 3 times according to the different 3 registration areas. The one-way ANOVA and posthoc analysis were performed.
Result: In the case of moving middle and lower faces, there was no significant difference in all markers when superimposition was performed based on no changed area and forehead area. However, in the case of superimposition by the whole face, all measurements showed a significant difference (P<0.05) except for Pn (P>0.05). In the case of moving only lower face, all measurements did not show a significant difference regardless of the registration area.
Conclusion: The validity of 3D superimposition in 3D images could be affected by the size of changed areas included in the registration area. In the postoperative evaluation of mandibular surgery, the registration area does not affect the accuracy of the 3D superposition. However, after the maxilla-mandibular surgery, the registration area should be set except for the changed soft tissue.
Materials and Methods: Ten mannequin heads which were sectioned to simulate maxillary and mandibular setback surgery were used. A total of 30 images, including 10 initial images, 10 images after moving both middle and lower faces, and 10 images after moving only lower face, were obtained. The 9 landmarks which consisted of the bilateral and midline landmarks of the upper, middle, and lower faces respectively were used. Each 3D image obtained after simulation was superimposed 3 times according to the different 3 registration areas. The one-way ANOVA and posthoc analysis were performed.
Result: In the case of moving middle and lower faces, there was no significant difference in all markers when superimposition was performed based on no changed area and forehead area. However, in the case of superimposition by the whole face, all measurements showed a significant difference (P<0.05) except for Pn (P>0.05). In the case of moving only lower face, all measurements did not show a significant difference regardless of the registration area.
Conclusion: The validity of 3D superimposition in 3D images could be affected by the size of changed areas included in the registration area. In the postoperative evaluation of mandibular surgery, the registration area does not affect the accuracy of the 3D superposition. However, after the maxilla-mandibular surgery, the registration area should be set except for the changed soft tissue.
목차
Introduction
Materials and Methods
Result
Discussion
Conclusion
References
참고문헌 (26)
참고문헌 신청
Kau CH / 2005 / The investigation of the changing facial appearance of identical twins employing a three-dimensional laser imaging system / Orthod Craniofac Res 8:85~90
Djordjevic J / 2013 / Three-dimensional longitudinal assessment of facial symmetry in adolescents / Eur J Orthod 35:143~151
Koudelová J / 2015 / Development of facial sexual dimorphism in children aged between 12 and 15 years: a three-dimensional longitudinal study / Orthod Craniofac Res 18:175~184
McDonagh S / 2001 / A prospective optical surface scanning and cephalometric assessment of the effect of functional appliances on the soft tissues / Eur J Orthod 23:115~126
Ismail SF / 2002 / Three-dimensional assessment of the effects of extraction and nonextraction orthodontic treatment on the face / Am J Orthod Dentofacial Orthop 121:244~256
Djordjevic J / 2013 / Three-dimensional longitudinal assessment of facial symmetry in adolescents / Eur J Orthod 35:143~151
Koudelová J / 2015 / Development of facial sexual dimorphism in children aged between 12 and 15 years: a three-dimensional longitudinal study / Orthod Craniofac Res 18:175~184
McDonagh S / 2001 / A prospective optical surface scanning and cephalometric assessment of the effect of functional appliances on the soft tissues / Eur J Orthod 23:115~126
Ismail SF / 2002 / Three-dimensional assessment of the effects of extraction and nonextraction orthodontic treatment on the face / Am J Orthod Dentofacial Orthop 121:244~256
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UCI(KEPA) : I410-ECN-0101-2020-515-000261714