Karthikeyan M K, Mathews Ruby, Prabhakar Ramachandra, Saravanan R, Ramasamy M, Vikram N Raj
Department of Orthodontics, Thai Moogambigai Dental College, Chennai, Tamil Nadu, India.
Department of Orthodontics, Sri Venkateswara Dental College, Chennai, Tamil Nadu, India.
Ann Maxillofac Surg. 2018 Jan-Jun;8(1):118-120. doi: 10.4103/ams.ams_165_13.
True intrusion is one of the difficult and complex goals to achieve which requires clinical judgment, skills, and experience. Intrusion requires less force level than other tooth movement, but it requires delicacy since the entire stress is concentrated in the apex of the root. Although true intrusion alone is not challenging, eliminating the adverse effect while intruding requires tedious skills of the clinician. A 17-year-old male patient with Class I malocclusion with open bite has a prominent maxillary cortical bone. He had a convex profile with an unpleasant smile. To reduce the bulkiness of cortical bone and to intrude the upper anterior, so the decision was made to perform corticotomy.
真正的牙齿压低是难以实现且复杂的目标之一，需要临床判断力、技能和经验。牙齿压低比其他牙齿移动所需的力量水平更低，但需要精细操作，因为所有应力都集中在牙根尖部。虽然单纯的真正牙齿压低并不具有挑战性，但在压低牙齿的同时消除不良影响需要临床医生具备娴熟的技巧。一名17岁的男性患者，安氏I类错牙合伴开牙合，上颌皮质骨突出。他侧面轮廓凸，笑容不佳。为了减少皮质骨的厚度并压低上前牙，因此决定进行皮质骨切开术。
