APA

Metzner R., Schwestka-Polly R., Helms H. & Wiechmann D. (20160512). Comparison of anchorage reinforcement with temporary anchorage devices or a Herbst appliance during lingual orthodontic protraction of mandibular molars without maxillary counterbalance extraction. : Head & face medicine.

Chicago

Metzner Rebecca, Schwestka-Polly Rainer, Helms Hans-Joachim and Wiechmann Dirk. 20160512. Comparison of anchorage reinforcement with temporary anchorage devices or a Herbst appliance during lingual orthodontic protraction of mandibular molars without maxillary counterbalance extraction. : Head & face medicine.

Harvard

Metzner R., Schwestka-Polly R., Helms H. and Wiechmann D. (20160512). Comparison of anchorage reinforcement with temporary anchorage devices or a Herbst appliance during lingual orthodontic protraction of mandibular molars without maxillary counterbalance extraction. : Head & face medicine.

MLA

Metzner Rebecca, Schwestka-Polly Rainer, Helms Hans-Joachim and Wiechmann Dirk. Comparison of anchorage reinforcement with temporary anchorage devices or a Herbst appliance during lingual orthodontic protraction of mandibular molars without maxillary counterbalance extraction. : Head & face medicine. 20160512.