3. post retained crown-midterm3

POST-RETAINED CROWN (Restoration of the Endodontically Treated Tooth )

[object Object],[object Object]

Treatment Planning ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Disadvantages to the routine use of a cemented post: ,[object Object],[object Object]

Requirements for traditional core and dowel construction: ,[object Object],[object Object]

[object Object],[object Object],[object Object],ferrule

Principle of Post Support (Retention) ,[object Object],[object Object],[object Object],[object Object]

3 Stages in Tooth Preparation ,[object Object],[object Object],[object Object],[object Object]

REMOVAL OF THE ENDO FILLING MATERIAL ,[object Object],[object Object],[object Object]

Steps: (using a warmed condenser) ,[object Object],[object Object],[object Object],5mm. Apical seal

ENLARGEMENT OF THE CANAL ,[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object]

PREPARATION OF THE CORONAL TOOTH STRUCTURE ,[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object]

Post Fabrication: ,[object Object],[object Object],[object Object],[object Object]

Core Fabrication : ,[object Object],[object Object],[object Object],[object Object],[object Object]

1 2 3 4 Casted metal post and core Post & core pattern Core pattern using wax Casted post & core cemented into the tooth Wax pattern for multiple root tooth

Wax pattern for a single root tooth A B C

AVAILABLE POST AND CORE SYSTEMS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],Tapered smooth-sided post

Some Techniques In the Removal of Fractured Post

Post Removal by High Speed Bur ,[object Object],[object Object]

Post removal by high speed bur A B

Masseran Technique ,[object Object],[object Object]

Maxillary incisor with a fractured post inside the canal (A and B). A B

C. The diameter of the post is gauged with a sizing tool. D. The selected trephine is carefully rotated counter- clockwise to create a narrow channel around the post. C D

E. When the instrument has removed sufficient material, the post is recovered. F. The fractured crown and post after removal. F E Fractured post

A rotary (lentulo) paste filler or cement tube is used to fill the canal with cement.

3. post retained crown-midterm3

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3. post retained crown-midterm3