This document provides information about the anatomy of a permanent maxillary right second molar tooth. It discusses the eruption timeline between ages 12-16 years and root completion by ages 14-16 years. It then describes in detail the anatomical features, landmarks, and structures of the buccal, lingual, mesial, distal, and occlusal surfaces of the tooth. These include cusps, ridges, grooves, contact areas, roots, and bifurcation/trifurcation regions. References are made to Wheeler's Dental Anatomy textbook. The document concludes with an announcement of a 5 minute quiz on the material.

1. DENTAL ANATOMY LAB
PERMANENT MAXILLARY RIGHT
SECOND MOLAR

2. TOOTH NOTATION

3. PERMANENT MAXILLARY RIGHT SECOND MOLAR
• Eruption
12 - 13 years
• Root Complete
14 - 16 years
CHRONOLOGY

4. BUCCAL
SURFACE
1. Mesiobuccal cusp = Mesial cusp ridge + Distal cusp ridge.
2. Distobuccal cusp = Mesial cusp ridge + Distal cusp ridge.
3. Mesiolingual cusp= Mesial cusp ridge + Distal cusp ridge.
4. Distolingual cusp = Mesial cusp ridge + Distal cusp ridge.
5. Buccal developmental groove.
6. Cervical line.
7. Root trunk.
8. Mesiobuccal Root & its apex.
9. Distobuccal root & its apex.
10.Lingual root & its apex.
11. Trifurcation area.

5. BUCCAL
SURFACE
• Proximal Contact:
1- Mesial
Within middle third.
2- Distal
Within middle third.

6. LINGUAL
SURFACE
1. Mesiolingual cusp= Mesial cusp ridge + Distal
cusp ridge.
2. Distolingual cusp = Mesial cusp ridge + Distal
cusp ridge.
3. Lingual developmental groove.
4. Cervical line.
5. Mesiobuccal Root & its apex.
6. Distobuccal root & its apex.
7. Lingual root & its apex.

7. MESIAL
SURFACE
1. Mesiobuccal cusp & its Mesial cusp ridge.
2. Mesiolingual cusp & its Mesial cusp ridge.
3. Fifth cusp (Cusp of Carabelli).
4. Mesial marginal ridge.
5. Mesial Contact area.
6. Cervical ridge.
7. Cervical line.
8. Root Trunk.
9. Mesiobuccal root & its apex.
10.Lingual root & its apex.
11. Trifurcation area.

8. MESIAL
SURFACE
• Contour Height
1- Buccal
Within cervical third.
2- Lingual
Within middle third.

9. DISTAL
SURFACE
1. Distobuccal cusp & its distal cusp ridge.
2. Distolingual cusp & its distal cusp ridge.
3. Distal marginal ridge.
4. Distal Contact area.
5. Cervical ridge.
6. Cervical line.
7. Root Trunk.
8. Mesiobuccal root & its apex.
9. Distobuccal root & its apex.
10.Lingual root & its apex.
11. Trifurcation area.

10. OCCLUSAL
SURFACE
1. Mesiobuccal cusp & its mesial and distal cusp ridge.
2. Distobuccal cusp & its mesial and distal cusp ridge.
3. Mesiolingual cusp & its mesial and distal cusp ridge.
4. Distolingual cusp & its mesial and distal cusp ridge.
5. Mesial marginal ridge.
6. Distal marginal ridge.
7. Oblique ridge.
8. Central fossa & its central pit.
9. Distal fossa.
10.Mesial triangular fossa & its mesial pit.
11. Distal triangular fossa & its distal pit.
12. Central developmental groove.
13. Buccal developmental groove.
14.Lingual developmental groove.
15. Transverse groove of oblique ridge.
16.Distal Oblique groove.

11. OCCLUSAL
SURFACE
• 0utline:
More Rhomboidal.

12. • WHEELER’S DENTAL ANATOMY, PHYSIOLOGY AND OCCLUSION, 10TH.
Reference
END OF LAB
QUIZ

13. QUESTION :
1-
2-
Time = 5 minutes.
Good Luck