Frankfort horizontal plane is an appropriate three-dimensinal reference in the evaluation of clinical and skeletal cant
오수석, 안재명, 남기욱, 팽준영, 팽준영, 홍종락,
소속 상세정보
오수석 ( Oh Su-Seok ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Oral and Maxillofacial Surgery
안재명 ( Ahn Jae-Myung ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Oral and Maxillofacial Surgery
남기욱 ( Nam Ki-Uk ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Oral and Maxillofacial Surgery
팽준영 ( Paeng Jun-Young ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Oral and Maxillofacial Surgery
팽준영 ( Paeng Jun-Young ) - Kyungpook National University School of Dentistry Department of Oral and Maxillofacial Surgery
홍종락 ( Hong Jong-Rak ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Oral and Maxillofacial Surgery
KMID : 0355620130390020071
Abstract
Objectives: In three-dimensional computed tomography (3D-CT), the cant is evaluated by measuring the distance between the reference plane (or line) and the tooth. The purpose of this study was to determine the horizontal skeletal reference plane that showed the greatest correlation with clinical evaluation.
Materials and Methods: The subjects were 15 patients who closed their eyes during the CT image taking process. The menton points of all patients deviated by more than 3 mm. In the first evaluation, clinical cant was measured. The distance from the inner canthus to the ipsilateral canine tip and the distance from the eyelid to the ipsilateral first molar were obtained. The distance between the left and right sides was also measured. In the second evaluation, skeletal cant was measured. Six reference planes and one line were used for the evaluation of occlusal cant: 1) FH plane R: Or.R ? Or.L ? Po.R; 2) FH plane L: Or.R ? Or.L ? Po.L; 3) F. Ovale plane R: Rt.F.Ovale ? Lt.F.Ovale ? Or.R; 4) F. Ovale plane L: Rt.F.Ovale ? Lt.F.Ovale ? Or.L; 5) FZS plane R: Rt.FZS ? Lt.FZS ? Po.R; 6) FZS plane R: Rt.FZS ? Lt.FZS ? Po.L, and; 7) FZS line: Rt.FZS ? Lt.FZS.
Results: The clinical and skeletal cants were compared using linear regression analysis. The FH plane R, FH plane L, and FZS line showed the highest correlation (P<0.05).
Conclusion: The FH plane R and FH plane L are the most appropriate horizontal reference plane in evaluation of occlusal cant on 3D-CT.
키워드
Facial asymmetry; Cephalometry; Three-dimensional computed tomography
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