Factors affecting the clinical success of screw implants used as orthodontic anchorage

摘要: Introduction: The purposes of this study were to examine the success rates and find factors affecting clinical screw implants used as orthodontic anchorage. Methods: Eighty-seven consecutive patients (35 male, 52 female; mean age, 15.5 years) with a total 227 4 types examined. Success during 15-month period force application determined according 18 variables. Results: overall rate was 91.6%. variables screw-implant (type, diameter, length), local host (occlusogingival positioning), management (angle placement, onset method application, ligature wire extension, exposure head, oral hygiene) did not show any statistical differences in rates. General (age, sex) had no significance. Mobility, jaw (maxilla or mandible), side placement (right left), inflammation showed significant right jaw, mandible relative risk logistic regression analysis when excluding mobility, around added factors. Conclusions: To minimize failure implants, implant must be controlled, especially for screws placed mandible.