1. Aim:Anatomic restudy of pulp cavity of permanent molars.

2. Each tooth has a space, the so-called pulp cavity.

3. Pulp cavity : contains blood vessels and nerves.

4. Results:Dental pulp cavity seal could control the pain of the acute stage quickly and effectively it was wore salisfactory than open drainage.

5. Hard shaft pulp cavity hole opener to the pulp cavity axis and made a hole opener to the head.

6. Dental pulp cavity in the dental pulp, which contains nerves, blood vessels, lymph tissue distribution and some other.

7. Method: Open drainage and dental pulp cavity seal were adopted.

8. Performance index see registered products standard "pulp cavity hole opener to".

9. Conclusion: Dental pulp cavity seal could reduce the patient s hospital times.

10. Methods:Macrography was used to observe the morphology of the mesiobuccal root, the degree of abrasion, the morphology of the floor of pulp cavity, the number and type of apical foramen.

11. Root canal treatment and finished tooth, lost in the pulp cavity nutrition supplies such as nerves, blood vessels, lymphatic, makes itself become more brittle fracture of teeth.

12. Caries, pathologic uptake or root canal treatment may lead to accidents are all part of pulp cavity and root canal perforation.

13. Objective To examine the cell differentiation potential of human dental pulp cells grown in pulp Cavity in vitro.

14. ONCLUSION: Chinese gall compound recipe as internal matrix material to repair the pulp cavity perforation could reduce the microleakage, and could prevent overextrusion of repair material effectively.

15. If teeth tooth decay before boring to the dental pulp cavity, because root canal treatment technology was not developed teeth almost to escape the pull of fate.

16. Restoration of the teeth, root canal treatment and other therapies all require a thorough knowledge of the dental pulp cavity.

17. Their positive signals were also observed in the osteoclasts above the tooth germ, where there were some odontoclasts in the medial wall of the pulp cavity.

18. CPC group of fat cells appear, Trabecular and woven bone interspersed CPC particles, pulp cavity is not completely through.