Fixed Prosthodontics Overview

Question 1

What are indirect restorations?

Answer 1

Restorations fabricated outside the mouth by a technician in a laboratory
- crowns
- post & cores
- bridgework
- inlays & onlays
- veneers

Question 2

What are the clinical stages of indirect restorations?

Answer 2

1. Preparation
2. Temporisation
3. Impressions & Occlusal records
4. Cementation

Question 3

What is an Inlay?

Answer 3

Intra-coronal restoration made in lab

Question 4

What are different material types of inlay?

Answer 4

• gold
• composite
• porcelain

Question 5

When are inlays used?

Answer 5

• occlusal cavities
• occlusal/interproximal cavities
• replacement of failed direct restorations

Question 6

In which teeth are inlays most commonly indicated?

Answer 6

• premolars
• molars

Question 7

What is the advantage of an inlay vs a direct restoration?

Answer 7

• superior material & margins
• won’t deteriorate over time

Question 8

What are the disadvantages of an inlay vs a direct restoration?

Answer 8

• time
• cost

Question 9

What are the preparation measurements for a ceramic inlay?

Answer 9

• 1.5-2mm isthmus width
• 1.5mm depth
• 1mm (min) shoulder or chamfer margin

Question 10

What are the preparation measurements for a gold inlay?

Answer 10

• 1mm isthmus width
• 1.5mm depth
• 0.5mm chamfer margin

Question 11

What materials can be used to cement a ceramic inlay?

Answer 11

• NX3 (nexus)
• RelyX

Question 12

What materials can be used to cement a gold inlay?

Answer 12

• AquaCem
• Panavia
• RMGI (RelyX)

Question 13

Give examples of direct temporary materials:

Answer 13

• Kalzinol (ZOE)
• GI