The Johnson twin arch appliance: I. The philosophy of treatment with the Johnson twin arch appliance II. The procedure of treatment with the twin wire appliance
- 31 July 1947
- journal article
- Published by Elsevier in American Journal of Orthodontics and Oral Surgery
- Vol. 33 (7) , 420-441
- https://doi.org/10.1016/0096-6347(47)90298-6
Abstract
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