Sang‐Sun Han
연세대학교 의과대학 치의예과 · 치의학
Sang-Sun Han 교수의 연구실은 구강 및 두부외과 영역에서의 해부학적 변형과 영상 진단 기술의 응용에 중점을 두고 있습니다. 특히锥형 비임의 단층촬영(CBCT)을 활용한 구강악안면 해부학적 구조(예: 후방모근관, TCC 등)의 정밀 분석과 수술 전 계획 수립에 기여하고 있으며, 임상적 정확도 향상을 위한 영상 품질 최적화 및 시뮬레이션 기반 교육 기법 개발에도 주력하고 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
A retromolar canal is an anatomical variation in the mandible. As it includes the neurovascular bundle, local anesthetic insufficiency can occur, and an injury of the retromolar canal during dental surgery in the mandible may result in excessive bleeding, paresthesia, and traumatic neuroma. Using imaging analysis software, we evaluated the cone-beam computed tomography (CT) images of two Korean patients who presented with retromolar canals. Retromolar canals were detectable on the sagittal and c
A patient's position changes in every CBCT scan despite patient alignment protocols. However, there have been studies to determine image quality differences when an object is located at the center of the field of view (FOV). To evaluate changes in the image quality of the CBCT scan according to different object positions, the image quality indexes of the Alphard 3030 (Alphard Roentgen Ind., Ltd., Kyoto, Japan) and the Rayscan Symphony (RAY Ind., Ltd., Suwon, Korea) were measured using the Quart
There are virtual reality (VR) wayfinding training systems for people with visual impairment, but there is a lack of studies about how training environments can affect spatial information acquisition of people with visual impairment. Using a VR treadmill and a VR tracker, we studied how walk-in-place and actual walking can affect the acquisition of spatial information with regard to paths and obstacles. Our results show that people with visual impairment remember routes better when trained with
Miniscrew-root distance increased significantly with the increased insertion angle, and the amount of increase was affected by the miniscrew placement site and vertical facial type. To ensure adequate distalization of the posterior segment, the miniscrew should be inserted at an angle in the interradicular area between the second premolar and first molar.
Precise knowledge of the TCC is clinically important for suitable local anaesthetic nerve block and the planning of surgical procedures that involve the mandibular ramus. Three-dimensional images of CBCT data are particularly effective for confirming the presence of this variation.
