Iwasawa, T An extraction case treated by the edgewise mechanism, particularly by Tweed technique. [electronic resource] - Nihon Kyosei Shika Gakkai zasshi = The journal of Japan Orthodontic Society 1970 - 206-14 p. digital Publication Type: Journal Article ISSN: 0021-454X Subjects--Topical Terms: AdolescentCephalometryHumansMaleMethodsOrthodontic AppliancesOrthodontics, CorrectivePrognathism--therapyRadiography, DentalSkull--diagnostic imagingTooth Extraction