Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Rio de Janeiro, RJ, Brazil.
Int J Oral Maxillofac Surg. 2012 Nov;41(11):1445-50. doi: 10.1016/j.ijom.2012.05.019. Epub 2012 Jun 27.
This systematic review examined the literature for evidence of dental root damage after contact with intermaxillary screws (IMS). Electronic databases, including the Cochrane Library, Ovid, Scirus, Scopus and Virtual Health Library, were used to search for original articles from 1980 to January 2011. Prospective and retrospective studies that assessed the association of root damage and contact with IMS were selected. Two authors independently reviewed and extracted the data from the included studies. A methodological quality scoring process was used to classify whether the articles presented low, moderate or high evidence. The search retrieved 795 citations. Nine studies fulfilled the initial selection criteria. Of these studies, 3 were excluded. Two studies did not note any iatrogenic injuries of the dental roots; the other study was a case report. Of the 6 included articles, 2 were ranked as having low and four as having moderate evidence. The moderate evidence found suggested that the roots did not exhibit clinical changes after coming into contact with the IMS, but this situation depends on the root damage level. To obtain reliable scientific evidence, studies with an adequate sample size and diagnostic methods are required to confirm the effects of IMS on the dental root.
本系统评价旨在研究在使用颌间牵引钉（intermaxillary screws，IMS）时对牙齿根部造成损伤的相关文献。通过电子数据库（包括 Cochrane 图书馆、Ovid、Scirus、Scopus 和 Virtual Health Library）检索了从 1980 年至 2011 年 1 月的原始文献，对评估 IMS 接触与牙根损伤之间相关性的前瞻性和回顾性研究进行了筛选。两名作者对纳入的研究进行了独立的评估和数据提取。采用一种方法学质量评分流程来对文章进行分类，以确定其为低、中或高质量证据。检索共获得了 795 条引用信息，9 项研究符合最初的筛选标准，但其中 3 项被排除，因为这 3 项研究均未记录任何医源性的牙根损伤，另外 2 项研究也未发现 IMS 接触对牙齿根部造成临床变化，还有 1 项研究仅为个案报告。6 项纳入的研究中，有 2 项被评为低质量证据，4 项被评为中等质量证据。中等质量证据表明，在与 IMS 接触后，牙齿根部并未出现临床变化，但这种情况取决于根损伤的程度。为了获得可靠的科学证据，需要进行具有足够样本量和诊断方法的研究来证实 IMS 对牙齿根部的影响。
