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首页> 外文期刊>The Journal of the American Dental Association >Applying extrusive orthodontic force without compromising the obturated canal space
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Applying extrusive orthodontic force without compromising the obturated canal space

机译：施加正畸挤压力而不损害密闭的根管空间

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摘要

Background. Complicated tooth fractures can be the unfortunate result of orofacial trauma and can offer a therapeutic challenge for the dentist. A conservative solution for gaining supragingival sound tooth structure often includes orthodontic forced eruption. Usually, this procedure is carried out by applying extrusive force after placing a provisional acrylic Richmond crown on the tooth. However, this long-lasting dental treatment may jeopardize the coronal seal of the root canal space, leading to microleakage and endodontic failure. Case Description. Orthodontic forced eruption demands application of force to an attachment connected to the remaining short clinical crown. In this article, the authors describe a case in which they used a new technique for orthodontic forced eruption of a traumatized tooth, using an extracanal attachment to apply extrusion force, and discuss its possible advantages and limitations. Conclusions. An extracanal attachment approach for orthodontic forced eruption without compromising the obturated canal space can be a solution for posttraumatic crown fracture. Practical Implications. The described procedure for forced eruption by using an extracanal pin attachment is efficient and convenient and does not require the clinician to apply force directly to the provisional crown. Therefore, during the application of force, there is less risk of loosening the provisional crown, and the canal space is kept intact with either the final restoration or dressing material.
机译：背景。复杂的牙齿骨折可能是口齿外伤的不幸结果，可能给牙医带来治疗挑战。获得龈上声波牙齿结构的保守方法通常包括正畸强迫性喷发。通常，通过在牙齿上放置临时的丙烯酸里士满牙冠后施加挤压力来执行此过程。但是，这种长期的牙科治疗可能会损害根管间隙的冠状密封，导致微渗漏和牙髓衰竭。案例说明。正畸强迫性喷发要求对与剩余的短临床冠相连的附件施加力。在本文中，作者描述了一种案例，在该案例中，他们使用了一种新技术来对受创伤的牙齿进行正畸强迫喷发，并使用牙根管附件施加挤压力，并讨论了其可能的优点和局限性。结论。在不损害闭塞的管腔空间的情况下，用于正畸强迫性喷发的肛管外附着方法可以作为创伤后冠状骨折的解决方案。实际影响。所描述的通过使用管外针附件进行强制喷发的方法是有效且方便的，并且不需要临床医生将力直接施加到临时牙冠上。因此，在施加力的过程中，松开临时牙冠的风险较小，并且根际空间或最终修复物或敷料均保持完好。

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