Seo Kyung Won, Iskenderoglu Nur Serife, Hwang Eui Hwan, Chung Kyu-Rhim, Kim Seong-Hun
*Department of Orthodontics†Department of Oral and Maxillofacial Radiology, Graduate School, Kyung Hee University, Seoul, Korea.
J Craniofac Surg. 2017 May;28(3):817-820. doi: 10.1097/SCS.0000000000003382.
This article reports C-tube miniplates as a practical temporary anchorage device choice to treat open bite patients with maxillary sinus pneumatization.
The C-tube components are titanium anchor plates and monocortical screws that are basically similar to any other miniplate systems, but it has the unique characteristic of the tube head to be malleable. The manipulation of the head part is easy due to the composition of pure titanium. The I-shaped C-tube with 3 holes and T-shaped C-tube miniplates were placed above the apices of maxillary molars as an absolute anchorage system to intrude the posterior maxilla. The bending of the tube heads assisted in reduction of severe open bite patient with maxillary sinus pneumatization.
Sinus perforation during placement of skeletal anchorage system weakens stability of the anchorage and further cause complications. Placement of titanium C-tube miniplates allowed reliable skeletal anchorage and avoided maxillary sinus perforation in patients with extreme pneumatizations. Simple bending of C-tube miniplates ensured increased orthodontic intrusion force without having to replace them, and eliminated consequences such as perforation of maxillary sinus, sinusitis, soft tissue irritation, or infection.
Anatomic difficulties in the placement of temporary anchorage device can be easily managed by using the bendable C-tube miniplate. It can serve as a great alternative over miniscrews or regular miniplates with reduced risk of sinus perforation and ability to bend the head portion to control orthodontic vectors and forces.
本文报道了C型管微型钛板作为一种实用的临时支抗装置，用于治疗伴有上颌窦气化的开牙合患者。
C型管组件由钛锚定板和单皮质螺钉组成，与其他微型钛板系统基本相似，但其独特之处在于管头具有可锻性。由于采用纯钛材质，头部操作简便。将带3孔的I形C型管和T形C型管微型钛板置于上颌磨牙根尖上方，作为绝对支抗系统来压低上颌后部。管头的弯曲有助于矫治伴有上颌窦气化的严重开牙合患者。
在植入骨支抗系统过程中发生的上颌窦穿孔会削弱支抗稳定性，并进一步引发并发症。植入钛质C型管微型钛板可实现可靠的骨支抗，并避免在气化严重的患者中出现上颌窦穿孔。C型管微型钛板的简单弯曲可确保在无需更换的情况下增加正畸压低力，并消除诸如上颌窦穿孔、鼻窦炎、软组织刺激或感染等后果。
使用可弯曲的C型管微型钛板可轻松解决临时支抗装置植入过程中的解剖学难题。与微型螺钉或常规微型钛板相比，它是一种很好的替代选择，可降低上颌窦穿孔风险，并具有弯曲头部以控制正畸矢量和力的能力。
