Figure 1: showing Nolla stages of development of third molar. Stage 0 - absence of crypt, Stage 1 – presence of crypt, Stage 2 – Initial calcification, Stage 3 – 1/3rd crown completed, Stage 4 – 2/3rd crown completed, Stage 5 – crown almost completed, Stage 6 – crown completed, Stage 7 – 1/3rd crown completed, Stage 8 – 2/3rd crown completed, Stage 9 – root completed, apex open, Stage 10 – apical foramen closed.