الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 75 |  |  |
| | | from | 75 | | |
Abstract
The aim of the study was to determine orthodontic treatment needs among groups of six to nine years old Egyptian children using modified index for preventive and interceptive orthodontic needs (IPION) in the mixed dentition stage as to decrease the need for orthodontic treatment in adult dentition stage.