Shin Joo-Hee, Kim Ryan Jin-Young
Department of Conservative Dentistry, Korea University Guro Hospital, Seoul, Korea.
Restor Dent Endod. 2012 Aug;37(3):180-4. doi: 10.5395/rde.2012.37.3.180. Epub 2012 Aug 29.
Traumatic injuries of the face often involve root fractures especially in anterior teeth. The prognosis and the treatment of the root fracture depend on the extent of the fracture line, general health and patient compliance. This case report outlines a new conservative trial treatment modality to stabilize the maxillary central incisors with horizontal root fracture on the cervical to middle third by fabricating canine guidance to remove loading on the traumatized maxillary central incisors during eccentric movements and thus inducing spontaneous healing of the fractured line between the fragments. Radiographs after thirty months showed adequate healing with no signs of pathological changes including root resorption, ankylosis or displacement. Long term follow-up revealed that vitality, stability and aesthetics were maintained and the patient was satisfied with the outcome.
面部创伤性损伤常累及牙根骨折,尤其是前牙。牙根骨折的预后和治疗取决于骨折线的范围、全身健康状况和患者的依从性。本病例报告概述了一种新的保守试验性治疗方法,即通过制作尖牙导板,在上颌中切牙颈部至中1/3处发生水平根折时,在上颌中切牙偏侧运动期间消除其负荷,从而诱导骨折片段间骨折线的自然愈合,以稳定上颌中切牙。30个月后的X线片显示愈合良好,无包括牙根吸收、粘连或移位在内的病理改变迹象。长期随访显示,患牙的活力、稳定性和美观性得以维持,患者对治疗结果满意。