唇腭裂患者正畸扩弓与植骨时机的探讨

发布时间：2018-02-24 08:38

本文关键词： 唇腭裂牙槽突植骨术快速扩弓慢速扩弓　出处：《华西口腔医学杂志》2016年02期 　论文类型：期刊论文

【摘要】：唇腭裂患者由于先天裂隙,早期手术的瘢痕张力和唇肌压迫等因素导致上颌骨横向发育受限,临床上常表现为上颌骨严重缩窄,宽度不足,上下牙弓不匹配,牙列反等。牙槽突植骨与正畸扩弓治疗是矫正上颌宽度不足的有效手段。本文从牙槽突植骨时机及其成功率、牙槽突植骨与正畸扩弓先后关系两方面讨论。牙槽突植骨的最佳时机为恒尖牙萌出前,其牙根发育1/2~2/3时。植骨前的快速扩弓有增大裂隙,扩大植骨量,降低植骨难度等优势,但是稳定性仍有争议。植骨后的快速扩弓可扩展腭中缝而不破坏植骨区,但是目前仍是小样本研究。慢速扩弓持续的轻力可起到较好的骨改建效应,但慢速扩弓的研究中多配合了固定矫治器,长期稳定效果有待进一步研究。
[Abstract]:The patients with cleft lip and palate were affected by congenital fissure, scar tension and lip muscle compression in early operation, which resulted in limited lateral development of maxilla. The clinical manifestations were severe constriction of maxilla, insufficient width, mismatch of upper and lower dental arch, and so on. The treatment of alveolar process and orthodontic arch expansion is an effective method to correct the deficiency of maxillary width. The relationship between alveolar process grafting and orthodontic arch expansion was discussed in two aspects. The best time of alveolar process bone grafting was at 1 / 2 / 2 / 3 of root development before permanent canine eruption. The rapid arch expansion before bone grafting had the advantages of enlarging fissure, enlarging the amount of bone graft and reducing the difficulty of bone grafting. But the stability is still controversial. The rapid expansion of the palatine suture after bone grafting without destroying the bone graft area is still a small sample study. The light force of the slow expansion can play a better role in bone remodeling. But in the study of slow expansion, the fixed appliance is often used, and the long-term stabilization effect needs to be further studied.
【作者单位】：大连医科大学附属第一医院口腔科;
【分类号】：R782.2

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