Bones and teeth Presentation age estimation

1. Bones and teeth
(Age Estimation & Sex Determination)

2. Specific Learning Objectives
Difference between bones of Male and Female
1. Skull bone
2. Pelvis bone
3. Mandible
4. Sternum
5. Femur bone
6. Sacrum bone
Age estimation of teeth by various methods

3. Skull bone

9. Pelvis bone

14. Mandible bone

16. sternum bone

18. S/no Features Male Female
1 Length More Less
2 Body of sternum
More than
twice the
length of
manubrium
Less than
twice the
length of
manubrium
3 Asley’s rule of 149 > 149 < 149
4 Sternal Index =
Length of manubrium
/ Length of body of
sternum X 100
Less (46.2) More (54.3)

19. Femur bone

21. Features Male Female
1 Length Long Short
2 Head of femur Large Small
3 Femoral angle > 125
degree
< 125
degree
4 Articular surface
Large (2/3
of sphere)
Small (1/3
of sphere)
5 Vertical diameter > 47 mm < 45 mm
6 Bicondylar width < 7.5 mm > 7.5 mm
7 Oblique length > 155mm < 145 mm
8 Muscular markings
More
prominent
Less
prominent
9 Angle of condyles
with shaft
80 degree 76 degree

22. Sacrum bone

27. Overlook of entire
skeleton

29. Types of Tooth

31. Descriptions
of
Temporary
and
Permanent Teeth

33. Temporary and
Permanent Teeth
and Its Eruption

36. Age estimation of teeth by
various methods

37. Dental charting has been classified into
many methods all over the world
a)Palmer’s notation
b)FDI method
(Federation Dentaire Internationale)
c) Modified FDI system
Universally FDI method is been used

38. Palmer’s notation

40. FDI method

42. Modified FDI system

43. 18 17 16 15 14 13 12 11 21 22 23 24 25 26 27 28
38 37 36 35 34 33 32 31 41 42 43 44 45 46 47 48
Permanent teeth
Temporary teeth
55 54 53 52 51 61 62 63 64 65
75 74 73 72 71 81 82 83 84 85
Lower Left
Upper Left
Upper Right
Lower Right
Upper Right Upper Left
Lower Right Lower Left