This document provides an overview of dental anatomy, including the parts of teeth and their surfaces. It discusses the maxillary and mandibular arches, dental quadrants, and tooth tissues like enamel, dentin, cementum and pulp. The types of teeth are described as primary/deciduous or permanent. Anterior teeth are distinguished from posterior teeth. The surfaces of teeth, including labial, buccal, facial, lingual, palatal, incisal, occlusal, distal and mesial are defined in terms of their location and orientation. Thirds divisions of the crown and root are also explained.

1. Dental Anatomy
LAB 2
Dental Surfaces and Thirds

2. 1- Maxillary
2- Mandibular
Dental Arches
1
2

3. Dental Quadrants
MedianLine

4. 1- Crown
2- Root
Tooth parts
1
2

5. 1- Enamel 2- Dentin 4- Cementum
3- Pulp
Tooth tissues
1
2
3
WithinCrown
Within Root
• Dentinisthemainbulkoftooth.
• AllthetissuesareHardexceptPulpissoft.
1
2
4
3

6. 1- Pulp Chamber 2- Pulp Canal
Pulp Parts
WithinCrown
Within Root
1
2
1
2

7. Dentition Types:
1. Primary (Deciduous) teeth. 2. Permanent (Succedaneous)teeth.

8. Dentition Division:
1. Anterior teeth. 2. Posterior teeth.

9. Labial Surface
• Maxillary and mandibular .
• Anterior teeth .
• Face : Lip .

10. Buccal Surface
• Maxillary and mandibular .
• Posterior teeth .
• Face : Cheek .

11. Facial Surface
• Maxillary and mandibular .
• Anterior and Posterior teeth .
• Face : Lip and Cheek .

12. Lingual Surface
• Maxillary and mandibular .
• Anterior and Posterior teeth .
• Face : Tongue .

13. Palatal Surface
• Anterior and Posterior teeth .
• Maxillary .
• Face : Tongue.

14. Incisal Surface
• Anterior teeth .
• Maxillary and Mandibular .
• Face : opposite arch teeth .

15. Occlusal Surface
• Posterior teeth .
• Maxillary and Mandibular .
• Face : opposite arch teeth.

16. Distal Surface
Mesial Surface
Called Proximal Surface
Example : Permanent Maxillary right second molar

17. • Mesio-distal in anterior and posterior .
• Labial, Buccal and lingual Aspect .
• Crown and Root .
DIVISIONOFTHIRDS

18. • Labio-lingual in anterior .
• Mesial and Distal Aspect .
• Crown and Root .
—————————————
• Buccolingual in posterior .
• Mesial and Distal Aspect .
• Crown and Root .
DIVISIONOFTHIRDS

19. • Cervicoincisal in crown (Anterior) .
• In Mesial , Distal , Labial and lingual.
———————————————————
• Cervico-occlusal in crown (Posterior) .
• In Mesial , Distal , Buccal and lingual.
DIVISIONOFTHIRDS

20. • Cervico-apical in Roots
(Anterior and Posterior).
• Mesial , Distal ,Labial ,Buccal and Lingual
Aspect .
DIVISIONOFTHIRDS
Cervical
Middle
Apical

21. ENDOFLAB