Case, Calvin S <br/><br/>
Principles of retention in orthodontia. 1920.  [electronic resource] 

 -  American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics  Oct 2003 
 - 352-61 p.  digital 
<br/><br/> Publication Type: Biography; Classical Article; Historical Article; Journal Article 
<br/><br/><label>ISSN: </label>0889-5406 
<br/><br/><label>Standard No.: </label>10.1016/s0889-5406(03)00541-9  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>History, 20th Century<br/>Humans<br/>Malocclusion, Angle Class II--history<br/>Malocclusion, Angle Class III--history<br/>Orthodontic Retainers--history<br/>Orthodontics, Corrective--history<br/>Secondary Prevention