구외 방사선사진 촬영에 사용되는 기준선의 상호 관계 = The relationship among reference lines used for taking the extraoral radiography

다국어 초록 (Multilingual Abstract)

Purpose : The aim of present study is to estimate the relationship among reference lines used for taking the extraoral radiography and panoramic radiography.
Materials and Methods : Lateral cephalographs of 40 adults, aged 22 to 30 years were taken. Angles between reference lines (Frankfort line, canthomeatal line, infraorbitomeatal line, and occlusal plane) were measured.
Results : Angles between Frankfort line and canthomeatal line, Frankfort line and infraorbitomeatal line, Frankfort line and occlusal plane, canthomeatal line and infraorbitomeatal line, canthomeatal line and occlusal plane, and infraorbitomeatal line and occlusal plane were 16.1°(±2.2), 5.8°(±2.4), 8.7°(±3.5), 10.3°(±1.3), 24.8°(±4.0), and 14.5°(±4.4), respectively.
Conclusion : Angle between frankfort and canthomeatal line is very different with commonly known angle. Frankfort horizontal reference lines used for panoramic radiography need an exact definition and more accurate standard is needed for the taking of panoramic radiograph (Korean J Oral Maxillofac Radiol 2001; 31 : 205-7)

목차 (Table of Contents)

• 서 론
• 연구대상 및 방법
• 1. 연구대상
• 2. 연구방법
• 결 과
• 총괄 및 고안