Cochrane系统评价证据表明,口服替代治疗能降低阿片类药瘾者HIV的血液传播.使用避孕套可有效预防HIV的性传播,同时联合其他一些干预措施可进一步降低个人感染HIV的风险.对于贫困人口和不发达地区,孕妇短程服用奈韦拉平是防治母婴传播最现实有效的方法;而基于发达国家的研究表明,剖腹产、母乳替代品可能是有效的干预.病毒逆转录酶抑制剂是初期治疗HIV感染的有效方法.特效药对于减少艾滋病相关的机会感染是必需的.积极的体育锻炼已被证实是提高艾滋病人生存和生活质量的有效手段.
Evidence-based dentistry has been established for more than a decade, and described as ‘the conscientious, explicit and judicious use of current best evidence in making decisions about the care of individual patients＇. However, Orthodontic clinicians in China still tend to base their treatment protocols on the ‘it works in my hands＇evidence provided by their peers, mainly due to their weak experience in searching and applying clinical evidences. In this article, authors are willing to share their experience with their Chinese peers, and to promote the dissemination and application of evidence-based orthodontics in clinical practice.
Having searched The Cochrane Library (Issue 4, 2005), we found: fluoride can reduce the occurrence and severity of white spot lesions; removal of premature contacts of the primary teeth can prevent posterior crossbite; expanding the top teeth can decrease the risk of a posterior crossbite; CSF may help retaining teeth; clear overlay retainer may settle teeth quicker than Hawley retainer; adhesives for fixed orthodontic brackets is still in dispute.