Axel Berens1, Dirk Wiechmann, Rupert Dempf. 1. Department of Orthodontics, Medizinische Hochschule Hannover, 30519 Hannover, Germany. AxelBerens@web.de
Abstract
OBJECTIVE: Mini- and micro-screws are of increasing interest in orthodontic therapy in cases where maximum anchorage is requested. In this study we aimed to identify the criteria that influence the clinical success of micro-implants. MATERIAL AND METHODS: 239 micro-implants were inserted for skeletal anchorage in 85 patients undergoing orthodontic therapy. The survival rates of the first 133 implants were analyzed and those results were later applied in treating subsequent patients. RESULTS: In so doing, we were able to reduce the loss rate from 23% to 5%. Using thicker implants on the labial side of the lower jaw and the lingual side of the upper jaw was an important factor in reducing failure rates. We found the lower jaw's lingual side to be an inadequate region for inserting micro-implants. Thinner micro-implants were selected for the upper jaw's labial side. CONCLUSION: By following these guidelines, practitioners may find mini- and micro-screws to offer reliable orthodontic support.
OBJECTIVE: Mini- and micro-screws are of increasing interest in orthodontic therapy in cases where maximum anchorage is requested. In this study we aimed to identify the criteria that influence the clinical success of micro-implants. MATERIAL AND METHODS: 239 micro-implants were inserted for skeletal anchorage in 85 patients undergoing orthodontic therapy. The survival rates of the first 133 implants were analyzed and those results were later applied in treating subsequent patients. RESULTS: In so doing, we were able to reduce the loss rate from 23% to 5%. Using thicker implants on the labial side of the lower jaw and the lingual side of the upper jaw was an important factor in reducing failure rates. We found the lower jaw's lingual side to be an inadequate region for inserting micro-implants. Thinner micro-implants were selected for the upper jaw's labial side. CONCLUSION: By following these guidelines, practitioners may find mini- and micro-screws to offer reliable orthodontic support.
Authors: Luís Carlos Sampaio Dias; Yomara Barreto da Costa Ferreira; Rudys Rodolfo de Jesus Tavarez; Célia Regina Maio Pinzan-Vercelino; Júlio de Araújo Gurgel Journal: J Appl Oral Sci Date: 2012-02 Impact factor: 2.698
Authors: Frauke Beyling; Elisabeth Klang; Eva Niehoff; Rainer Schwestka-Polly; Hans-Joachim Helms; Dirk Wiechmann Journal: Head Face Med Date: 2021-06-29 Impact factor: 2.151