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Figure1 The performance of the X-ray is the destruction of the left mandible bone, and shows no dental root resorption, no bone line or periosteal reaction. 图1，患者术前曲面断层的表现，可见左下颌骨部分骨质破环，未见明显骨白线和牙根吸收、骨膜反应。
dental root resorption 牙根吸收
But the luxated immatured teeth accompanied with alveolar fracture tended to have root resorption. 伴有牙槽骨骨折者易发生牙根吸收。结论:少儿前恒牙脱位率高,再植效果好。
Objective:To evaluate the influence on root resorption after distalizing molars with face bow. 目的:评价口外弓推磨牙远移对磨牙牙根吸收的影响。
Objective: To analyze the relation ship between Streptococcus mutans, Actinomyces and dental root surface caries. 目的：分析变形链球菌和放线菌与根面龋的关系。
The animals were killed at 1,2,4 and 7 week respectively,and histological slices of the experimental teeth were made to observe the root resorption. 同时在第1、2、4、7周将动物处死,制作实验牙的病理切片,观察发生牙根吸收的情况。
Root resorption is a common complication in orthodontic treatment, which affects the result of the treatment and the health of teeth. 牙根吸收是正畸治疗中的常见并发症,其直接影响治疗效果及牙齿的健康。
Mehl A,Folwaczny M,Haffner C,Hickel R.Bactericidal effects of 2.94 microns Er:YAG-laser radiation in dental root canals[J].J Endod,1999 Jul.,25(7):490-3. 徐春蓉;甘伟国;张民众等.;脉冲YAG激光对小儿耳鼻咽喉常见病治疗效果及其作用机理的探讨[J]
To control root resorption,we should know the factors.We review the factors of root resorption induced orthodontically in this article. 控制牙根吸收,首先要了解其病因,本文将对牙根吸收的影响因素作一综述。
The root resorption induced orthodontically can not be avoided completely.The factors of root resorption are very complex. 正畸治疗诱导的牙根吸收是无法完全避免的,它的影响因素也非常复杂。
What reason is when coming up against dental root ministry every time, feeling the tooth is very acerbity? How should treat? 每次碰到牙齿根部时都感到牙齿很酸是什么原因?应该怎么治疗?
Objective: To evaluate the effect ot flat bite plate (FBP) on the root resorption of mandibular incisors during orthodontic treatment. 摘要目的：探讨平面导板配合直丝弓矫治对牙根吸收的影响。
CONCLUSIONS: DPSCs may exist in both dental root and coronal pulp, and the density of DPSCs in the root pulp may be higher than the coronal pulp. 结论:牙稳干细胞可能存在于全部牙髓之中,在根髓中比冠髓中具有更高的密度。
Objective:To evaluate the effect ot flat bite plate(FBP) on the root resorption of mandibular incisors during orthodontic treatment. 目的:探讨平面导板配合直丝弓矫治对牙根吸收的影响。方法:随机选择66例经过直丝弓矫治的成年非拔牙患者,其中33例配合使用平面导板治疗。
PURPOSE: The purpose of this study was to evaluate the effect of high pull J hook headgear (HPHG) on root resorption of maxillary incisors during orthodontic treatment. 摘要目的：评价标准方丝弓配合高位J钩对正畸治疗中牙根吸收的影响。
PURPOSE: The purpose of this study was to evaluate the effect of high pull J hook headgear(HPHG) on root resorption of maxillary incisors during orthodontic treatment. 目的:评价标准方丝弓配合高位J钩对正畸治疗中牙根吸收的影响。
In addition, the rate of dental root fistula resolution was 34.8% in ITG and 15.4% in DTG (P<0.05), and that of swelling incidence was 5.6% in ITG and 6.8% in DTG (P>0.05), respectively. 肿胀发生率一次程为5.;6%25;多次程为6
Methods:Primary dental root canal was simulated with silica gel tubes, one end sealed and the other end open. The tubes were filled Zinc-Oxide-Eugenol(ZOE), Ca(OH) 2 and iodoform respectively with sterile conditions. 方法 :以一端封闭 ,另一端开放的硅胶管模拟乳牙根管 ,无菌条件下分别充填氧化锌丁香油糊剂 ,氢氧化钙糊剂和碘仿糊剂。
When a traditional method is used to repair residual dental root with horn-shaped orifice, this kind of dental root often has to be extracted since the success rate in clinic is very low. 根管口呈喇叭形的残根用传统桩核修复时,常由于剪力集中在颈部和根尖,使得根管口薄壁不能承受较大的压力,在临床上因修复成功率较低,只能将牙根拔除。
Objective:To determine the relationship between the rate of anterior teeth root resorption and orthodonc-tic treatment applying microscrew implant anchorage or orthognathia surgery. 目的:观察微型种植体作矫正支抗和正颌手术配合矫正治疗后患者上前牙牙根吸收情况,了解牙根吸收率与牙齿移动距离和受力时间的关系。