重庆医科大学：《口腔正畸学》课程教学课件（PPT讲稿）正畸治疗的生物学原理 Biological principle of orthodontic therapy

正畸治疗的生物 学原理 Biological principle of orthodontic therapy 重庆医科大学口腔医学院正畸教研室 Department of orthodontics,college of stomatology,Chongqing medical university

正畸治疗的生物 学原理 Biological principle of orthodontic therapy 重庆医科大学口腔医学院正畸教研室 Department of orthodontics, college of stomatology, Chongqing medical university

Normal Malposed Orthodontic force arrangement tooth and function

Normal arrangement and function Orthodontic force Malposed tooth ？

矫治力 Orthodontic force | Mechanical 机械性牙移动 displacement 正 of tooth 生物力学阶段 在牙周支持组织形成 different stress Biomechanic phase 治 Orthodontic treatment 两个应力区 area was formed in periodontal tissue 疗 procedure 过 压应力区骨吸收 张应力区骨沉积 Bone resoption ins Bone deposition in 程 pressure area tension area 组织学改建 Histological remodeling 生物学阶段 牙齿移位 Tooth movement Biological phase 矫正错合畸形 Correction of malocclusion

正 畸 治 疗 过 程 矫治力 机械性牙移动 在牙周支持组织形成 两个应力区 牙齿移位 组织学改建 压应力区骨吸收 张应力区骨沉积 生物学阶段 生物力学阶段 矫正错合畸形 Orthodontic force Biomechanic phase Biological phase Mechanical displacement of tooth different stress area was formed in periodontal tissue Bone resoption in pressure area Bone deposition in tension area Histological remodeling Tooth movement Correction of malocclusion Orthodontic treatment procedure

content Biological basis of orthodontic treatment Why? Histological remodeling during the treatment How? >牙周组织改建 Periodontal tissue 骨缝组织改建 Bone suture (including mid-palatal suture) 》颞下颌关节组织改建 Temporal-mandibular joint >神经肌肉改建 Nerve/muscle

❖ Biological basis of orthodontic treatment ➢ 牙周组织改建 ➢ 骨缝组织改建 ➢ 颞下颌关节组织改建 ➢ 神经肌肉改建 content ❖ Histological remodeling during the treatment Periodontal tissue Bone suture（including mid-palatal suture) Temporal-mandibular joint Why？ How？ Nerve/muscle

额颌缝 颤额缝 颗颜缝 翼厚缝 Maxillary suture

Maxillary suture

facemask

facemask F

Headgear+activator

Headgear+activator F

切牙孔 观鸦 荐大孔 露钩 鸭骨水平都 翼英 一个护弓城旋展护宽牙号中后段 Mid-palatal suture Expander screw

Mid-palatal suture Expander screw

Temporal-mandibular joint

Temporal-mandibular joint

activator bionator Function regulator Twin block Removable functional appliance

activator bionator Function regulator Twin block Removable functional appliance