Efficiency in Controlling Sagittal Skeletal Anchorage of Ii / 1 Anomaly

The aim of this research is to systematically analyze clinical trials involving the use of mini-implants in the sagital control of II / 1 anomaly. Published articles were considered over a period of seven years, in the AJO-DO and "The Angle Orthodontist”. There were sought all articles which reported the use of mini-implants in the sagittal control for the treatment of II/1 anomaly. By establishing a search strategy and a criterion for inclusion / exclusion, seven articles have been selected for this analysis. In two studies there have been made comparisons with functional mobile devices such as head-gear and in one study with fixed functional appliances; the results are far more rapid for functional fixed appliance, but more efficient for the mini-implant group and without undesired effects. Molar distalization was achieved on a distance between 2.9 to 6 mm with mini-implants, with a success rate of over 90%. The results obtained with mini-implants should be seen taking into consideration the quality of the studies that was mean and low, due to predominantly retrospective studies, and, in addition, it should be noted that the lot size is quite small, which shows the need for more qualitative studies and larger sets of subjects. The efficiency of skeletal anchorage in the sagital control of anomaly II / 1 is superior to traditional means of anchorage. The methodology of the analyzed studies was poor and the results should be interpreted with caution.