This document discusses the key components of a fixed partial denture (FPD), including retainers, pontics, and connectors. It defines each component and describes their classification and ideal requirements. For retainers, it covers types based on tooth coverage and retention mechanism, as well as criteria for selection. Pontic types include those with and without mucosal contact. Connectors are categorized as rigid or non-rigid, with examples like cast, soldered, and loop connectors. The document provides indications, advantages, and disadvantages of different retainer, pontic, and connector designs.

1. PARTS OF FIXED
PARTIAL DENTURE
Presented by:
Iqra Saman
GI5592(Batch 2k14)
Under the guidance of:
Dr. Pankaj Kharade

2. CONTENTS
• DEFINITION OF FPD
• COMPONENTS OF FPD
• RETAINER- Classification
-Criteria for Selection
• PONTIC - Ideal Requirements
-Classification
• CONNECTOR-Types
-Indication
• CONCLUSION

3. DEFINITION
The branch of
prosthodontics
concerned with the
replacement and/or
restoration of teeth by
artificial substitutes that
are not readily removed
from the mouth. (GPT8)

4. COMPONENTS
FPD has three elementary components, that
are:
 Retainer
 Pontic
 Connector

5. Retainer: The part of a fixed dental prosthesis that unites
the abutment(s) to the remainder of the restoration.
(GPT8)
Pontic: An artificial tooth on a fixed dental prosthesis
that replaces a missing natural tooth, restores its
function,and usually fills the space previously occupied by
the clinical crown.
Connector: The portion of a fixed dental prosthesis that
unites the retainer(s) and pontic(s).

6. RETAINER

7. Classification
A. Amount of tooth coverage
1. Complete coverage or full veneer retainers:
• Cover all surfaces of abutment teeth
• Provide maximum retention
• Most commonly used
• Used in extensively damaged abutment teeth

8. 2. Partial coverage or partial veneer retainers:
• Do not involve all the surfaces of abutment
• Require less tooth preparation, less retentive
but superior aesthetics
• Termed as 3/4th crown, reverse 3/4th crown, 4/5th
crown, 7/8th crown, one half crown.

9. 3. Conservative retainers:
• Require minimal tooth preparation
• Indicated for anterior teeth eg Resin bonded
fixed partial dentures

10. B. Mechanism of Retention
1. Extracoronal retainer:
• Retention from external surfaces of coronal part of abutment
teeth. Eg Full and partial veneer crowns
2. Intracoronal retainers:
• Retention from within the coronal tooth structure.
Eg Inlays, Onlays

11. 3. Radicular retainers:
• Obtain retention from within the root of the
abutment.
• Eg Posts

12. C. Materials Used
1. All metal retainers:
• Possess good strength
• Commonly used with posterior abutments
• Minimal tooth preparation
2. Metal ceramic retainers:
• Most commonly used, indicated in both anterior and
posterior teeth
• Can either be facing or full coverage

13. 3. All ceramic retainers:
• Most aesthetic, need maximal tooth preparation
4. Acrylic retainers:
• Used for temporary fixed partial dentures
• Have poor strength, color instability, inadequate wear
resistance hence not used in definitive prosthesis

14. Criteria for selection of retainers
1. Abutment Angulation
• If abutments are parallel to each other: a full veneer
retainer can be planned
• If abutments are non parallel: a partial veneer
retainer along with another partial or full veneer
retainer can be used to get a single path of insertion

15. 2. Condition of the Abutment
 Good health- partial veneer treatment option
 Endodontically treated or extensively damaged- full
veneer retainer recommended
 Periodontically weak- conservative resin bonded
retainers indicated

16. 3. Asthetics
 Type of pontic
 In case of inadequate pontic space, a full veneer
retainer can help better in managing the space to get
better aesthetics.
4. Retention
 Molars and premolars exert more force- requires more
retention.
 More coverage- more retention- more life span.
5.Cost
 Full veneer all ceramic retainers are more expensive.

17. 6. Preservation OfTooth structure.
 Partial veneer preparations more conservative.
 The buccal/facial surface should be preserved for
natural aesthetics.
Choice should be depending upon all the factors so
that the longevity of the prosthesis is no compromised.

18. PONTIC

19. IDEAL REQUIREMENTS
1. Restore function of replaced tooth
2. Provide aesthetic and comfort
3. Biologically acceptable
4. Oral hygiene
5. Preserve underlying ridge and mucosa
6. Adequate strength

20. CLASSIFICATION
I. Mucosal contact-With mucosal contact
-Ridge lap or saddle pontic
-Modified ridge lap
-Ovate pontic
-Conical pontic
-Without Mucosal Contact
-Sanitary/Hygienic pontic
-Modified sanitary/ Perel

21. II. Materials Used- All Metal Pontic
-All Ceramic Pontic
-Metal-Ceramic Pontic
-Metal with resin facing Pontic
-Fibre reinforced Composite Pontic
III. Method Of Fabrication- Custom made Pontics
-Prefabricated Pontic

22. RIDGE LAP/ SADDLE PONTIC
Indication Contraindication Advantages Disadvantages
 High aesthetics
demands
 Patients with poor
oral hygiene
maintenance
 Periodontal
problems
 Aesthetically
superior
 Gingival surface
inaccessible thus
difficult to clean
 Pontic must be
highly polished

23. MODIFIED RIDGE LAP PONTIC
Indication contraindication Advantage Disadvantage
 Anterior teeth
 Premolars
 Maxillary molars
 Poor oral hygiene
 Mandibular
molars
 Good aesthetics
 Lingual surface is
convex and does not
contact gingival
tissue- hygiene
 Oral hygiene
inferior when
compared to
sanitary Pontic

24. OVATE PONTIC
Indication Contraindication Advantage Disadvantage
 Fresh extraction
sockets
 Anterior teeth
 Flat broad ridges
 Posterior teeth  Most aesthetically
appealing
 Least food entrapment
 Easy to clean
 Just after
extraction
 Surgical
preparation
required

25. CONICAL PONTIC
Indication Contraindication Advantage Disadvantage
 Posterior teeth  Broad residual
edentulous ridge
 Aesthetic zone
 Ideal oral hygiene  Compromised
aesthetics

26. SANITARY/ HYGIENIC PONTIC
Indication Contraindication Advantages Disadvantages
 Non- aesthetic
zone
 Ease of
maintenance
 Appearance zone
 Less vertical
dimension
 Good accessibility
for oral hygeine
 Poor aesthetics

27. MODIFIED SANITARY PONTIC
Indication Contraindication Advantage Disadvantage
 Posterior teeth  Appearance zone  Mesio-distal concavity
 Easy cleansing
 Added strength to
connectors
 Compromised
aesthetics

28. CONNECTORS

29. TYPES OF CONNECTORS
• Cast connectors
• Soldered connectors
• Loop connectors
RIGID
CONNECTORS
• Tenon-mortise connectors
• Split Pontic connectors
• Cross wing and wing
connectors
NON-RIGID
CONNECTORS

30. RIGID CONNECTORS
 These connectors do not provide any movement.
 Indicted when all the masticatory force is to be transferred
to abutments.
 Can be directly cast as a part of multiunit fpd or different
units can be soldered together.
 Size- Large enough to prevent distortion or fracture during
function.
Too large is un-aesthetic and difficult for plaque
control.
 Tissue surface is curved facio-lingually for efficient
cleansing.

31. CAST CONNECTOR LOOP CONNECTOR

32. NON-RIGID CONNECTORS
 Allow limited movement between retainer and Pontic.
 Have limited amount of flexibility.
 Indications- when parallel wall of insertion cannot be achieved.
- Pier abutment
- Periodontically weak abutments to reduce stress.
(Stress breaker)

33. PIER
ABUTMENTS

35. • Tenon- mortise
connector
1. Alignment parallel
to the path of
placement.
2. Can be made free
hand or prefabricated
plastic patterns can be
used.
• Split Pontic
connector
1.Where minimum
amount of movement is
required to maintain
abutment health.
2. Pontic split into mesial
and distal halves.
3. A shoe/key
incorporatd in mesial
half and keyway in distal
half.
4.This assembly engages
when placed in position.
• Cross pin and wing
connector
1. Similar to split
pontic and are used
for tilted abutments.
2.Wing is attached to
distal retainer which is
cemented first and
pontic to mesial
retainer.

36. CONCLUSION
Components of FPD need to be designed in harmony
with all the principles and fulfilling all the requirements
of each part.
After a thorough examination, the type of prosthesis is
determined such that it has a long term favourable
prognosis.

37. THANK YOU!