7. Follow instructions
Patient want
1.keep the teeth for bridge
2. No surgery(CLP)
3. Immediate restoration
4.less appointments (demand)
I took photos and have patient sign on
chart for no guarantee for over 1 years
13年9月2日星期一
10. Why
• The purpose of the post is to hold the core
under daily function
13年9月2日星期一
11. When
• When core material alone can't provide
enough retention and resistance for
prosthesis with remain tooth structure under
daily function
• Clinical experience and evaluation
13年9月2日星期一
12. How
• One of the purpose of this lecture:share my
experience
• Every clinician has each own way and
preference
13年9月2日星期一
13. Post failure
• Around 10%(more than implant ?)
• Failure type
1.post loosening
2.root fracture
3.post fracture
4.apical abscess
13年9月2日星期一
14. Loosening post
• Retention and resistance
• Post length
• Post type
• Anti-rotation
• Fitness
• Remaining tooth structure
• Cement & cement technique
13年9月2日星期一
15. Post length
• 4-5mm GP left for apical seal and avoid
perforation
• At least 4mm below alveolar crest
13年9月2日星期一
27. Root fracture
• More ideal stress distribution
• Occlusal force
• Post diameter,post space preparation
• Post modification
• Cement technique
• Ferrule effect
• Post type
13年9月2日星期一
59. Prefabricated post with core
material VS casting post &core
• Prefabricated post with core material
• Pros: fast,impression taking in the same
appointment ,temporary crown made easy
• Cons: remaining tooth structure not
enough,less conservative
13年9月2日星期一
60. Prefabricated post with
core material
• What I learn from BU
Hard to make temporary crown if very little tooth structure left
13年9月2日星期一
63. Prefabricated post with core
material VS casting post &core
• Casting post&core
• Pros: conservative canal preparation,less core
failure
• Cons:need another appointment,hard to make
temporary crown,time for post insertion
13年9月2日星期一