dental anatomy lab Permanent maxillary right first molar carving steps

1. Dental Anatomy
Permanent Maxillary Right First Molar

2. Contents
* Table.
* Carving
A- Kit.
B- Steps.
* Finishing Steps.

3. Table 11-1

4. Carving Kit
1- Towel.
2- Le crone.
3- Wax knife.
4- Plaster Knife.
5- Brush.
6- wax block.
7- ruler .
4
3
2
1
5 6
7

5. Carving Steps

6. Note :
Each 1 mm in table
=
1 mm in the ruler

7. Buccal Surface

8. 1- Surface name
• Buccal because tooth Posterior.

9. 2- Midline
• To identify the mesial and distal surfaces.

10. • A - Length of crown = 7.5 mm.
3- Measurements :
(Table 11-1)

11. 4- Cervical line
• To identify the crown and root

12. 5- Thirds division
• Cervico- Occlusal =
Cervical= 2.5 mm.
Middle= 2.5 mm.
Occlusal= 2.5 mm.

13. • B- Mesiodistal diameter of crown at
cervical line = 8 mm.
• 4 mm (Mesial).
• 4 mm (Distal).
6- Measurements :
(Table 11-1)

14. • C- Mesiodistal diameter of crown = 10 mm.
• 5 mm (Mesial) contact area at junction
between occlusal and middle third.
• 5 mm (Distal) contact area at the middle of
middle third.
6- Measurements :
(Table 11-1)

15. • Intercuspal distance = 5 mm .
• 2.5 mm (Mesial).
• 2.5 mm (Distal).

16. • Connect between the points
• Mesial outline .
7- Draw the surface.

17. 7- Draw the surface.
• Connect between the points
• Distal outline .

18. 8- Deeping of cervical line
• By Le crone along all surfaces
Buccal.
Mesial.
Distal.
Lingual.

19. • Start from mesial
surfaces.
9- Remove wax

20. 9- Remove wax
• Then distal surface.

21. Final Buccal outline

22. Buccal Surface

23. 1- Surface name
• Mesial surface.

24. 2- Midline
• To identify :
• the Buccal and Lingual surfaces.

25. • A- Length of crown = 7.5 mm.
3- Measurements :
(Table 11-1)

26. 4- Cervical line
• To identify the crown and root.

27. 5- Thirds division
• Cervico- Occlusal =
Cervical= 2.5 mm.
Middle= 2.5 mm.
Occlusal= 2.5 mm.

28. • B- Buccolingual diameter of crown at
cervical line = 10 mm.
• 5 mm (Buccal).
• 5 mm ( Lingual).
6- Measurements :
(Table 11-1)

29. • C- Buccolingual diameter of crown= 11 mm.
• 5.5 mm buccal (crest of curvature at center
of cervical third).
• 5.5 mm lingual (crest of curvature within
middle third).
6- Measurements :
(Table 11-1)

30. • Intercuspal distance = 6 mm .
• 3 mm (Buccal).
• 3 mm (Lingual).

31. • Connect between the points
• Buccal outline.
7- Draw the surface.

32. 7- Draw the surface.
• Connect between the points
• Lingual outline.

33. 8- Deeping of cervical line
• By Le crone long all
surfaces
(Labial, Mesial, Distal, Lingual).

34. • Start from Buccal surface.
9- Remove wax

35. 9- Remove wax
• Then Lingual surface.

36. Final Mesial outline

37. Finishing Steps

38. 1- Cervical Line • Measure 1 mm from cervical line toward
root.

39. 1- Cervical Line
• Extend line along all surfaces.

40. • Remove wax from root along all surfaces:
Buccal., Mesial, Lingual, Distal.
1- Cervical Line

41. 1- Cervical Line
• Remove wax from root part under cervical line
clari
fi
ng it by spoon end of Le crone along all
surfaces.

42. 1- Cervical Line
• Remove wax from root part under cervical line
clari
fi
ng it by spoon end of Le crone along all
surfaces.

43. 2- Roundation
• Carve 0.5 mm from all the line angles
• Mesiobuccal.
• Distobuccal.
• Mesiolingual.
• Distolingual.

44. • Occlusal …
• Rhomboid occlusal outline.
• Carve 1 mm from Distobuccal line
angle.
3- Landmarks of each surfaces.

45. • Occlusal …
• Draw L shape from center of buccal to
the center of mesial surface.
• Avoid carving the oblique ridge.
3- Landmarks of each surfaces.

46. • Occlusal …
• Draw C shape from center of lingual (more
distally) to the center of distal surface (more
lingually)..
• Avoid carving the oblique ridge.
3- Landmarks of each surfaces.

47. • Occlusal …
• Start with point on center of the cusp
represent cusp tip later.
• Each cusp has two cusp ridges.
3- Landmarks of each surfaces.

48. • Occlusal …
• Carve each cusp independently.
1. Mesiobuccal .
2. Distobuccal .
3. Distolingual .
4. Mesiolingual (Largest).
5. Carabelli (smallest).
• Each cusp has two cusp ridges.
3- Landmarks of each surfaces.

49. • Occlusal …
• Carve each cusp independently.
1. Mesiobuccal .
2. Distobuccal .
3. Distolingual .
4. Mesiolingual (Largest).
5. Carabelli (smallest).
• Each cusp has two cusp ridges.
3- Landmarks of each surfaces.

50. • Occlusal …
• Start with point on center of the cusp
represent cusp tip later.
• Each cusp has two cusp ridges.
3- Landmarks of each surfaces.

51. • Occlusal …
• Carve each cusp independently.
1. Mesiobuccal .
2. Distobuccal .
3. Distolingual .
4. Mesiolingual (Largest).
5. Carabelli (smallest).
• Each cusp has two cusp ridges.
3- Landmarks of each surfaces.

52. • Occlusal …
• Carve each cusp independently.
1. Mesiobuccal .
2. Distobuccal .
3. Distolingual .
4. Mesiolingual (Largest).
5. Carabelli (smallest).
• Each cusp has two cusp ridges.
3- Landmarks of each surfaces.

53. • Occlusal …
• Start with point on center of the cusp
represent cusp tip later.
• Each cusp has two cusp ridges.
3- Landmarks of each surfaces.

54. • Occlusal …
• Carve each cusp independently.
1. Mesiobuccal .
2. Distobuccal .
3. Distolingual .
4. Mesiolingual (Largest).
5. Carabelli (smallest).
• Each cusp has two cusp ridges.
3- Landmarks of each surfaces.

55. • Occlusal …
• Carve each cusp independently.
1. Mesiobuccal .
2. Distobuccal .
3. Distolingual .
4. Mesiolingual (Largest).
5. Carabelli (smallest).
• Each cusp has two cusp ridges.
3- Landmarks of each surfaces.

56. • Occlusal …
• Start with point on center of the cusp
represent cusp tip later.
• Each cusp has two cusp ridges.
3- Landmarks of each surfaces.

57. • Occlusal …
• Carve each cusp independently.
1. Mesiobuccal .
2. Distobuccal .
3. Distolingual .
4. Mesiolingual (Largest).
5. Carabelli (smallest).
• Each cusp has two cusp ridges.
3- Landmarks of each surfaces.

58. • Occlusal …
• Carve each cusp independently.
1. Mesiobuccal .
2. Distobuccal .
3. Distolingual .
4. Mesiolingual (Largest).
5. Carabelli (smallest).
• Each cusp has two cusp ridges.
3- Landmarks of each surfaces.

59. • Occlusal …
• Carve each cusp independently.
1. Mesiobuccal .
2. Distobuccal .
3. Distolingual .
4. Mesiolingual (Largest).
5. Carabelli (smallest).
• Each cusp has two cusp ridges.
3- Landmarks of each surfaces.

60. • Occlusal …
• Carve each cusp independently.
1. Mesiobuccal .
2. Distobuccal .
3. Distolingual .
4. Mesiolingual (Largest).
5. Carabelli (smallest).
• Each cusp has two cusp ridges.
3- Landmarks of each surfaces.

61. • Occlusal …
• Carve Grooves:
1. Central developmental.
2. Distal.
3. Buccal.
4. Lingual.
5. Transverse across the oblique ridge.
3- Landmarks of each surfaces.

62. • Occlusal …
• Carve Grooves:
1. Central developmental.
2. Distal.
3. Buccal.
4. Lingual.
5. Transverse across the oblique ridge.
3- Landmarks of each surfaces.

63. • Occlusal …
• Carve Grooves:
1. Central developmental.
2. Distal.
3. Buccal.
4. Lingual.
5. Transverse across the oblique ridge.
3- Landmarks of each surfaces.

64. • Occlusal …
• Carve Grooves:
1. Central developmental.
2. Distal.
3. Buccal.
4. Lingual.
5. Transverse across the oblique ridge.
3- Landmarks of each surfaces.

65. • Occlusal …
• Carve Grooves:
1. Central developmental.
2. Distal.
3. Buccal.
4. Lingual.
5. Transverse across the oblique ridge.
3- Landmarks of each surfaces.

66. • Occlusal …
• Carve Fossae:
• Major;
1. Central
2. Distal.
• Minor:
3. Mesial triangular .
4. Distal triangular .
3- Landmarks of each surfaces.

67. • Occlusal …
• Carve Fossae:
• Major;
1. Central
2. Distal.
• Minor:
3. Mesial triangular .
4. Distal triangular .
3- Landmarks of each surfaces.

68. • Buccal …
• buccal develpomental groove.
• Buccal pit.
3- Landmarks of each surfaces.

69. 3- Landmarks of each surfaces.
• Lingual …
• Lingual develpomental groove.
• Lingual pit.

70. 5- Clean, polish ,shine the tooth.
• By
fi
nishing kit :
1- Silk piece or cotton.
2- Alcohol Spray.

71. Final Work

72. Reference :
*Wheeler’s Dental Anatomy and Physiology.

73. END OF LAB