Fixed prosthodontics involves replacing and restoring teeth with artificial substitutes like crowns, bridges, dentures, and dental implants that are permanently fixed in the mouth. Common fixed prostheses include crowns, fixed partial dentures (bridges), and fixed implant dentures. Some prostheses have both fixed and removable parts. Crowns, or dental caps, are artificial restorations that are cemented over remaining parts of prepared teeth to restore strength, shape, and appearance. Crowns fully cup the tooth at and above the gumline to become the new tooth surface. Crowns are indicated to cover heavily restored teeth, replace lost tooth structure from trauma or wear, improve aesthetics, and protect root canal treated teeth.

1. Fixed Prosthodontics

2. Fixed Prosthodontics
• Involves the replacement and restoration of
teeth by artificial substitutes that are not
readily removable from the mouth...
• Its focus is to restore function,esthetics and
comfort..

3. Common fixed prostheses are:
• Crown
• Fixed partial dentures (bridge)
• Fixed implant dentures
• Maxillofacial prostheses

4. Some prostheses have both fixed and removable
parts:
• Precision retained dentures
• Implant retained dentures
• Overlay denture

5. CROWN

6. INTRODUCTION
• CONTENTS
Definition
Indications
Contraindications
Alternatives to Crown
Types of crown

7. crown
• Crowns / Caps:
Artificial restorations cemented over the
remaining part of prepared teeth to give them
strength, shape & shade of natural teeth.

8. • A dental crown is a type of tooth restoration
that fully cups the portion of a tooth or dental
implant that lies at and above the gum line.
• The crown becomes the tooth's new outer
surface.

10. Indications
• To cover and support a tooth with a large
filling(heavily restored tooth)
caries
secondary caries
failed or broken restorations

12. Continued....
• Replacement of lost tooth structure
trauma / accident
advanced tooth wear (tooth surface loss

16. Continued...
• To improve esthetics
1. stained/discolored tooth
enamel/dentinal hypoplasia
hypodontia
flourosis
tetracycline staining
non vital teeth

18. 2. to correct :
spacing
inclination
shaping
-To correct occlusal relationship
-to protect root canal treated tooth

19. Continued....
• Milled crowns
- for guide planes
- to carry precision attachments for
prosthesis
- suitable undercuts for clasps
. As a retainer for fixed partial denture

22. Types of crown
• Partial crowns
• Complete crowns

23. Partial crowns

24. • Common types of partial crowns :
• three quarter crown
• The 7/8th crown (uncovered mesiobuccal cusp)
• ½ crown (covering half mesial and hald
occlusal surface)
• Occlusal onlays (cover only occlusal surface)

31. ¾ Crown Anterior ¾ Crown Posterior

36. Complete crowns
• For anterior teeth
- acrylic crown
easy to make/ cheaper
easily discolored/weared
Marginal breakdown-leak
- all ceramic crown
High esthetics/plaque resistant /dimensionally stable
Brittle/poor marginal fit/extra tooth cutting required

37. -metal ceramic crown
Strong/good marginal fit/soldering to other parts
Poor appearance/extra tooth cutting required
- Dowel crown or post/pin retained crown
in Root canal treated tooth

40. Alternatives to Dental Crowns:
Minimal Intervention Dentistry (MID).
Conservative approach by first selecting:
- Treatments that are less invasive & destructive to
tooth structure.

41. …………… Alternatives to Dental Crowns:
more conservative treatment--- it is a better option.
Simple treatments of great help for people with
monetary constraints who may not completely
withdraw the need for crown, but can postpone
crowning for some time.
Before opting out for a crown, it is right to wonder if:
- That is the only option.
- Patient wants to delay crowning & opt for a less
expensive approach.
- An alternative one is available & is suitable.
- The results may not be of short-term nature.

42. …….. Alternatives to Crowning of Teeth:
DENTAL INLAYS:
- Used to treat teeth with decay or damage lying within
the occlusal surface / between cusps.
DENTAL ONLAYS / Overlays:
- Used to treat decay or fracture extending to one or
more of the tooth’s cusps.
Composite Rebuild-up / Veneers:
- Extreme stains or small abrasions on teeth, AI & DI.
Dental Bonding:
- For small fractures, replacing old eroded fillings, small
sized cavity.
Bleaching: Tooth whitening agents used to bleach
stained teeth to impart natural whiteness.
- Not a permanent remedy, but a simple, inexpensive &
attractive option.

44. Bleaching
Porcelain onlays

45. Before After
Composite resin build-up of a shortened tooth
Advantages of Direct Composite Build-up:
•Relatively cheap.
•Quick - same day results.
•Non or minimally invasive.
•Easy to repair in mouth.
Disadvantages of direct composite build-up
•Prone to stain build-up especially in smokers.
•Can wear down in heavy load areas.
•Limited ability to mask very dark underlying stains.

47. Thank You