Behnia Hossein, Mesgarzadeh Abolhasan, Tehranchi Azita, Morad Golnaz, Samieerad Sahand, Younessian Farnaz
From the *Dentofacial Deformities Research Center, Research Institute of Dental Sciences, Department of Oral and Maxillofacial Surgery, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran; †Iranian Association of Implantology, Tehran, Iran; ‡Dental Research Center, Research Institute of Dental Sciences, Department of Orthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran; §Oral and Dental Disease Research Center, Department of Oral and Maxillofacial Surgery, School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran.
J Craniofac Surg. 2014 Jul;25(4):1554-7. doi: 10.1097/SCS.0000000000000865.
Secondary bone grafting simultaneous to premaxillary repositioning is a well-recognized surgical procedure for the management of bilateral cleft lip and palate patients. Proper stabilization of the repositioned premaxilla is considered as a key factor for the success of secondary bone grafting because the mobility of the premaxillary segment jeopardizes graft integration. This case series reports a reliable method of premaxillary stabilization that incorporated the intrasurgical application of resin bone cement to cover and reinforce the arch bars or orthodontic brackets applied on the maxillary teeth. Occlusal loads were reduced by application of posterior bite blocks on the mandibular teeth. The stabilization method was performed on 7 patients (5 women and 2 men) with a mean age of 12.4 years. During postsurgery follow-ups, the repositioned premaxillary segments did not show mobility in any of the patients. The palatal fistulae were completely closed. Panoramic radiographies taken 2 months after surgery demonstrated acceptable graft integration. The patients have now been followed up to 5 years. No evidence of relapse has been observed. This technique seemed to be undemanding, included minimal laboratory procedure, and maintained the labial mucosa overlying the repositioned segment intact.
在上颌前部复位的同时进行二期骨移植是治疗双侧唇腭裂患者的一种公认的外科手术。重新定位的上颌前部的适当稳定被认为是二期骨移植成功的关键因素,因为上颌前部节段的移动性会危及移植骨的整合。本病例系列报告了一种可靠的上颌前部稳定方法,该方法在手术中应用树脂骨水泥覆盖并加固应用于上颌牙齿的牙弓杆或正畸托槽。通过在下颌牙齿上应用后牙咬合块来减少咬合负荷。该稳定方法应用于7例患者(5名女性和2名男性),平均年龄为12.4岁。在术后随访期间,重新定位的上颌前部节段在任何患者中均未显示移动性。腭瘘完全闭合。术后2个月拍摄的全景X线片显示移植骨整合良好。这些患者现已随访5年。未观察到复发迹象。该技术似乎要求不高,包括最少的实验室操作,并保持覆盖重新定位节段的唇黏膜完整。