Van Wyk, Philippus J.2013-09-072007-01-052013-09-071999-11-012007-01-052007-01-05Coetzee CE, 1999, Development of an index for preventive and interceptive orthodontic needs (IPION), MChD dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/25984 >H816/thhttp://hdl.handle.net/2263/25984Dissertation (MChD (Orthodontics))--University of Pretoria, 2007.Please read the abstract in the section 00front of this document© 1999 University of Pretoria. All rights reserved. Thecopyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means,without the prior written permission of the University of Pretoria.Orthodontics diagnosisOrthodonticsInterceptive indexesOrthodonticsPreventive indexesUCTDDissertationhttp://upetd.up.ac.za/thesis/available/etd-01052007-125001/