do Nascimento Leonard Euler Andrade Gomes, de Souza Margareth Maria Gomes, Azevedo Angela Rita Pontes, Maia Lucianne Cople
Dental Press J Orthod. 2014 Jan-Feb;19(1):60-8. doi: 10.1590/2176-9451.19.1.060-068.oar.
To verify, by means of a systematic review, whether the design of brackets (conventional or self-ligating) influences adhesion and formation of Streptococcus mutans colonies.
four databases (Cochrane Central Register of Controlled Trials, Ovid ALL EMB Reviews, PubMed and BIREME) were selected to search for relevant articles covering the period from January 1965 to December 2012.
in first consensus by reading the title and abstract. The full text was obtained from publications that met the inclusion criteria.
Two reviewers independently extracted data using the following keywords: conventional, self-ligating, biofilm, Streptococcus mutans, and systematic review; and independently evaluated the quality of the studies. In case of divergence, the technique of consensus was adopted.
The search strategy resulted in 1,401 articles. The classification of scientific relevance revealed the high quality of the 6 eligible articles of which outcomes were not unanimous in reporting not only the influence of the design of the brackets (conventional or self-ligating) over adhesion and formation of colonies of Streptococcus mutans, but also that other factors such as the quality of the bracket type, the level of individual oral hygiene, bonding and age may have greater influence. Statistical analysis was not feasible because of the heterogeneous methodological design.
Within the limitations of this study, it was concluded that there is no evidence for a possible influence of the design of the brackets (conventional or self-ligating) over colony formation and adhesion of Streptococcus mutans.
通过系统评价，验证托槽设计（传统型或自锁型）是否会影响变形链球菌菌落的黏附及形成。
选择四个数据库（Cochrane对照试验中心注册库、Ovid所有循证医学评价、PubMed和拉丁美洲及加勒比地区卫生科学数据库）检索1965年1月至2012年12月期间的相关文章。
首先通过阅读标题和摘要达成共识。从符合纳入标准的出版物中获取全文。
两名评价者使用以下关键词独立提取数据：传统型、自锁型、生物膜、变形链球菌和系统评价；并独立评估研究质量。如有分歧，则采用共识技术。
检索策略共得到1401篇文章。科学相关性分类显示，6篇合格文章质量较高，但其结果并不一致，不仅在报道托槽设计（传统型或自锁型）对变形链球菌菌落黏附及形成的影响方面存在差异，而且在诸如托槽类型质量、个人口腔卫生水平、粘结情况和年龄等其他因素可能产生更大影响方面也存在差异。由于方法设计的异质性，无法进行统计分析。
在本研究的局限性范围内，得出的结论是，没有证据表明托槽设计（传统型或自锁型）可能会对变形链球菌的菌落形成及黏附产生影响。
