Objectives. The purpose of this study is to analyze all factors affecting the survival rate of temporary anchorage devices (TAD’s) specifically for miniscrews (MT). Material and methods. We performed an electronic search accompanied by manual search of the last ten years, the criteria for inclusion were those factors affecting the survival of miniscrews. Results. Forty‑seven articles whose results were divided into five blocks as: patient characteristics, the miniscrews, location, surgical technique and other aspects. Negative influence on success in placing free gum, root contact, peri‑implant inflammation and cortical thickness less than 1 mm. The other factors do not significantly affect success. Discussion. The evaluation of the variables that influence the success of miniscrews is complex due to the small percentage of failure rate, lack of clarity of the selected studies and the wide variety of studies and variables involved. Conclusions. It is necessary to perform randomized clinical trials in humans which provide a greater degree of scientific evidence and/or future investigations that focus on specific issues through the use of controlled experimental models.
(Rev Esp Ortod. 2011;41(2):102-108)