| S T A G E 2
G E N E R A L I Z E D S P A C
E S |
| Birth to the complete primary dentition |
| First
intertransitional period |
| First transitional period |
| Second intertransitional period |
| Second transitional period |
| Adult dentition |
| R I C H A R D Y O O N |
| 13 |