Description:
There are a
number of factors that must be determined both during diagnosis
and during treatment to provide optimal success with all-ceramic crowns. This presentation
will describe these factors that optimize success.
Learning
Objectives:
- Know the diagnosis and treatment planning factors that affect success
- Understand the tooth preparations features that minimize complications
- Compare the characteristics of zirconia and lithium disilicate crowns
- Understand the cementation procedures that optimize all-ceramic crowns
- Know how to optimize the shade selection process when using all-ceramic
crowns
Abstract:
The quest for optimal esthetics along with the development of increased
strength in the materials available for fabricating all-ceramic crowns has led
to a significant increase in their clinical use. This presentation lists
the most common complications that occur with all-ceramic crowns and discusses
the diagnosis/treatment planning factors and tooth preparation factors that help
to minimize crown fracture. Additionally, the tooth preparation factors
required to optimize the CAD/CAM fabrication process are identified. The effect
of the type of material and cementation process are described along with a
discussion of ceramic onlays and inlays. The presentation ends by
illustrating the process by which the color of all-ceramic crowns can be
optimized.
Outline:
- The most common all-ceramic crown complications
- Diagnosis and treatment planning factors that minimize fracture
- Tooth preparation factors that minimize fracture
- Amount of reduction
- Axial reduction uniformity and depth
- Incisocervical/occlusocervical dimension
- Line angle form
- Total occlusal convergence
- What tooth preparation form is required for CAD/CAM crowns?
- Comparison of different types of materials
- Veneer chipping
- Type of cement and crown survival
- What do we know about ceramic onlays and inlays?
- How to optimize the color of all-ceramic crowns
- Video showing shade guide use
- Video showing digital shade selection
- Identification of translucent and transparent areas
- Dentin shade selection
- Gingival shade selection
- Digital image requirements
- Use of contraster
