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Tooth Preparation - All ceramic crowns
- 1. Dr. Paul A. Tipton Cut vertically through the centre of the UL2TOOTH PREPARATION
- 2. Dr. Paul A. Tipton The reduction for a dentine bonded crown is 0.5 – 0.7mm for feldspathic porcelain and 0.75 – 1mm for castable glass ceramic TOOTH PREPARATION
- 3. Dr. Paul A. Tipton Cut 0.5mm depth grooves in 3 planes Tipton Training Limited TOOTH PREPARATION
- 4. Dr. Paul A. Tipton Remove 2mm from incisal edge TOOTH PREPARATION
- 5. Dr. Paul A. Tipton Smooth incisal edge TOOTH PREPARATION
- 6. Dr. Paul A. Tipton Check reduction with putty matrix TOOTH PREPARATION
- 7. Dr. Paul A. Tipton TOOTH PREPARATION
- 8. Dr. Paul A. Tipton Reduce Labial surface evenly by 0.5mmPrepare 0.35mm gingival margin prep slightly supragingival to stay in enamel TOOTH PREPARATION
- 9. Dr. Paul A. Tipton Cut through inter- proximally with fine bur TOOTH PREPARATION
- 10. Dr. Paul A. Tipton Produce 0.5mm chamfer for mesially and distally The overall convergence angle should be 20 – 30 degrees with axial inclination of 10- 15 degrees TOOTH PREPARATION
- 11. Dr. Paul A. Tipton Place depth grooves palatally Tipton Training Limited TOOTH PREPARATION
- 12. Dr. Paul A. Tipton Reduce palatal surface by 0.5 – 0.7mm TOOTH PREPARATION
- 13. Dr. Paul A. Tipton Reduce palatal cingulum with round or rugby shaped bur TOOTH PREPARATION
- 14. Dr. Paul A. Tipton Prepare chamfer margin 0.5mm supra gingivally TOOTH PREPARATION
- 15. Dr. Paul A. Tipton Check overall reduction TOOTH PREPARATION
- 16. Dr. Paul A. Tipton TOOTH PREPARATION
- 17. Dr. Paul A. Tipton Make sure all angles are rounded TOOTH PREPARATION