6. Is a dental prosthesis that substitute
teeth and associated structures in
partially edentulous arch made from
acrylic resin and can be removed
and replaced at will.
Temporary removable partial
dentures
7. Temporary RPD:
A removable prosthesis that is used
temporarily for a period of time until
a more definitive prosthesis can be
provided.
8. 1. Reestablish Esthetic or Appearance.
2. Maintenance of space.
3. Improving patient tolerance for wearing a
prosthesis
4. Reestablishing occlusal relationships.
5. Conditioning teeth and residual ridges.
6. An interim restoration during treatment.
objectives:
9. 1- Reestablish Esthetic or
Appearance.
Before and After construction of the
immediate treatment partial denture
10. 2. Maintenance of space
In young patients the space should be
maintained until the adjacent teeth have
reached sufficient maturity to be used as
abutments for fixed restorations
In adult patients can prevent undesirable
migration and extrusion of adjacent or
opposing teeth until definitive treatment
can be accomplished.
12. 3. Improving patient tolerance
for wearing a prosthesis
Allows a period in which
the patient can gradually
adapt to permanent
prosthesis.
13. 4. Reestablishment of occlusal
relationships
Temporary RPDs may be used
as occlusal splint
To establish a new occlusal
relationship or occlusal vertical
dimension
14. The increase in occlusal vertical
dimension is sometimes necessary to
accommodate the required restorations,
to be tolerated by the patient
15. 5. To condition teeth and ridge
tissue
Temporary RPDs or occlusal
splint
Prepare or condition the teeth and
ridge tissue for the definitive
removable partial denture that will
follow.
Carry tissue treatment material to
abused oral tissues.
16. 6. Interim restoration during
treatment
Replaced with fixed restorations
Age
Newly extraction
Implant healing period
17. An interim denture can be helpful in
patients exhibiting gingival trauma
as a result of a deep incisal overbite
18. Prevention of gingival trauma should not be
attempted with an onlay appliance covering
only the posterior teeth as continued
eruption of the anterior teeth may result in
the original traumatic relationship
19. In the young patient the palatal table may
allowing further eruption of the posterior
teeth and causing some intrusion of the
mandibular anterior teeth
20. Indications
1. Young Patients
2. Elderly Patients whose health
contraindicates lengthy and physically
tiring procedures
3. When cost is a prime requisite, and
patients who cannot afford the
expenses of metallic pd or fixed
restorations
21. Indications
4.When a diagnostic or interim
(Temporary) partial denture is
required before a definite
restoration.
5.As a template for implant
location
22. Indications
6. Treatment Partial Denture
A. Carry tissue treatment material to abused
oral tissues.
B. To re-establish the vertical dimension of
occlusion .
C. As a splint following surgical corrections
D. As a night guard or mouth protective
device to correct or control undesirable
oral habits, or to protect the mouth and
teeth from trauma.
23. Advantages of acrylic partial dentures
over Cobalt Chrome partial dentures
Light in weight.
Good appearance
Not expensive (Low cost)
Easy to construct and to repair
Less laboratory and clinical
time consuming
24. Disadvantages of acrylic partial
dentures
Poor thermal conductivity
Lower strength (easily broken)
Less hygienic
Tendency for warpage if
overheated during polishing.
25. Types of Temporary RPDs
A. Interim Removable Partial
Denture (RPD)
B. Transitional RPD
C. Treatment RPD
D. Immediate RPD
26. Removable partial dentures that is
used temporarily for a period of
time until a more definitive
prosthesis can be provided.
Temporary RPDs
27. A- Interim Removable partial dentures
Definition:
It is dental prosthesis used for a limited
period of time to enhance:
• Esthetics
• Function (mastication and speech)
• Occlusal support
• Stabilization and Convenience.
28. Is to condition the patient to
the acceptance of an
artificial substitute for
missing natural teeth until
more definitive prosthodontic
therapy can be provided
Objectives of using an Interim RPD
29. It may be indicated when age and
time factors may prohibit the
construction of the definitive
prosthesis.
(Permanent in some cases)
Objectives of using an Interim RPD
31. Indications
Large pulps (can’t fabricate bridge)
Clinical crowns too short
No usable undercuts
Children - permanent prosthesis would
be quickly outgrown
Temporary space maintenance (caries,
trauma, congenitally missing teeth)
34. Temporary time or financial
constraints
Sudden loss of teeth, before sufficient
healing has occurred (accidents, after
extractions)
Indications
35.
36.
37. B- Transitional RPD
Transition to a complete denture
Teeth need to be extracted but not
immediately (medically
compromised)
Patient is not psychologically
prepared
38. As will be replaced by the definitive
prosthesis after tissue changes have
occurred.
i.e. Not all the artificial teeth will be
replaced at the same time (one by one).
It may become an interim complete
denture when all natural teeth have
been removed from the dental arch.
42. C- Treatment Removable PD
Improve a condition before a
definitive denture
It is another form of Temporary
prosthesis that is used to
improve, treating or conditioning
the tissues.
44. Papillary hyperplasia (massage, Brushing,
With or without surgery)
Acute inflammation (increase tissue
adaptation and redistribute the stress)
May use the existing denture or a new
treatment denture may be made
Tissue conditioning
Treatment Denture
46. • Alteration of vertical dimension /
occlusion
• Determine how patient will respond to
changes (TMD)
• Surgical Splint
Removal of palatal tori
Treatment Denture
59. Clasps (Wrought wire 0.02”)
Ball clasps
Rest and retentive elements
Design
60. Clasps (Wrought wire 0.02”)
Adams clasps
Rest and retentive elements
Design
61. Bracing
Lingual/palatal major connector
provides bracing
Contacts teeth at the heights of
contour
Design
62. Rests
Usually wrought wire
Acrylic may be used over cingulum
rest seats
Longer term use
- cast retainers
Design
63. Design
Major Connectors
Full palatal coverage increases
strength & stability
Extend denture to first molar
Retentive clasps embedded into
major connector
66. It is mucosa borne acylic RPD without
clasps that replaces missing maxillary
anterior teeth.
Spoon denture
Dentures whose
retention depends
primarily on control
by the patient’s
musculature.
67. Where an acrylic denture is provided, tissue damage
is minimized by careful design of “spoon” denture.
It reduces gingival margin coverage to a minimum
but a potential hazard is the risk of inhalation or
ingestion.
aid stability and retention
68. Spoon denture was modified by frictional
contact between the connector and the
palatal surfaces of some of the posterior
teeth or by adding wrought wire clasps.
69. Which can be used for restoring multiple
bounded saddle areas in the upper jaw.
Every denture
70. Six principles are:
1. Arch completed through a series of contact points
2. Flanges establish lateral and antero-posterior
stability
3. Large denture base for retention and support
(maximum area coverage within physiological
limit)
4. Denture base with wide embrasures to preserve
gingival health (reduces gingival margin coverage
to a minimum)
5. Free occlusion to minimize occlusal forces
6. Post damming to improve retention
71. The inaccurate fit will encourage plaque
formation with consequent periodontal disease
and caries, thus introducing an unnecessary and
avoidable risk to oral health.
Disadvantage
72. All denture borders are at least 3 mm
from the gingival margins.
The “open” design of saddle/tooth
junction is employed.
Every denture
73. Point contact between the artificial teeth and
abutment teeth is established to reduce
lateral stress to a minimum.
Every denture
Posterior wire “stops” are
included to prevent distal
drift of the posterior teeth
with consequent loss of
the contact points.
75. Flanges are included to assist the
bracing of the denture.
Every denture
Lateral stresses are
reduced by achieving as
much balanced occlusion
and articulation as possible.
76. Which has extensions into undercuts
on the labial surfaces of the teeth.
The swing-lock RPD
77. It consists of a labial/buccal retaining bar,
hinged at one end and locked with a latch
at the other, together with
The swing-lock RPD
a reciprocating lingual
plate to gain a
maximum retention and
stability.
78. The bar incorporate rigid struts or
an acrylic veneer which make
prosthesis immobile.
The swing-lock RPD
83. The denture can be particularly
helpful where the remaining
natural teeth offer very little
undercut for conventional clasp
retention.
Advantages
84. The “gate” can carry a labial acrylic
veneer. This veneer can be used to
improve the appearance when a
considerable amount of root surface
has been exposed following
periodontal surgery.
Advantages
85. Disadvantage
As this type of denture covers a
considerable amount of gingival
margin, the standard of plaque
control must be high.
94. A) The mucosa will become inflamed and
the bone will resorb.
B) The amount of bone which has been
destroyed is apparent when the
denture is removed.
A) B)
95. Take care
Utilizing Acrylic Interim Partials
2. Patients can be more
susceptible to caries as the
acrylic pd and remaining
natural teeth can become
target for plaque accumulation
96. 3. Patients need Extra
prophylactic measures such as
more frequent hygiene visits
and regular use of fluoride
should be recommended.
97. 4. Patients who insist on
wearing their prosthesis
while they sleep should
leave their partial out for
several hours during the day
(tissue rest)
98. 5. When using clasps for retention,
care should be taken not to
interfere with patient’s normal
occlusion.
Occlusal interferences are one of
the main reasons for poor
patient compliance with these
appliances.
99. doesn’t need
it.
and the
person who
dislike you
won’t believe
Because the person who
likes you
Never explain yourself to
anyone.
100. Denture base extended on to the teeth
to aid stability and retention. This
extension also provides support
101. Wire "stops" must be included on the distal
surface of the most distally placed natural
teeth in the arch. In addition to providing point
contact, the stops also help to prevent anterior
movement of the denture base as well as distal
movement of the natural teeth.
102. “Every” design principles dictate that
denture coverage should always be minimal
to prevent accumulation of plaque and
mechanical irritation of the gingivae.
103. An Every denture covers a large palatal area yet
its contact with the standing teeth is minimal.
Resistance to anterior displacement is also
derived from the stops placed on the distal
surface of the molar teeth
104. Connectors to the saddles should
be narrow to provide suitable
clearance for the gingivae
105. A minimum clearance of 3 mm is
regarded as a satisfactory
distance.
106. The denture base must not encroach on
the gingivae. A detrimental effect on
these tissues can result from mechanical
irritation and stagnation of food debris.
107. Care must be taken to prevent inter-
proximal stagnation areas by
creating self-cleansing wide
embrasures as illustrated here.
108. Stability of the Every denture against
lateral and posterior displacement is
achieved by the incorporation of
labial and buccal flanges
109. Correct extension of the flanges is
important as over or under extension
will affect denture stability.
110. Creating "free" occlusion is an
essential feature for stability
b, Free occlusion in
lateral excursion
a, Centric occlusion
111. When free occlusion is created cuspal interference is
eliminated during jaw movements: This helps to
preserve stability of the denture and minimize trauma.
Selective grinding of the teeth during the setting up will
enable lateral and protrusive excursions without
interference from the natural teeth
112. 1. Applegate O.C.: Essentials of removable partial denture prosthesis. 1st ed. Philadelphia (PA): W. B. Saunders Co. 2000.
2. Aviv I, Ben-Ur Z, Cardash HS. An analysis of rotational movement of asymmetrical distal-extension removable partial dentures. J Prosthet Dent; 61:211-214. 1989.
3. Davenport, J.C. and Pollard, A.: Aspects of partial denture design; University of Birmingham .U.K. 2005.
4. Davenport, J.C., Basker, R.M., Heath, J.R. and Ralph, J.P.: A colour Atlas of Removable Partial Dentures. Wolfe Medical Publications Ltd. 2005.
5. Applegate O.C.: Essentials of removable partial denture prosthesis. 1st ed. Philadelphia (PA): W. B. Saunders Co. 2000.
6. Bas Garcia LT. The use of a rotational-path design for a mandibular removable partial denture. Compend Contin Educ Dent;25:552-567. 2004.
7. El Gamrawy, E. A.: Basic principles of Removable Partial Denture. Clinical course. Fifth ed. 1990.
8. Firtell DN, Jacobson TE. Removable partial dentures with rotational paths of insertion: Problem analysis. J Prosthet Dent;50:8-15. 1983.
9. Garver DG. A new clasping system for unilateral distal extension removable partial dentures. J Prosthet Dent;39: 268-273. 1987.
10.Halberstam SC, Renner RP. The rotational path removable partial denture: The over-looked alternative. Compendium;14: 544-552. 1993.
11.J. C. Davenport, R. M. Basker, J. R. Heath, J. P. Ralph, P-O. Glantz and P. Hammond: Clasp design, BDJ. JANUARY 27, VOLUME 190, NO. 2, PAGES 71-81.
2001
12.J. C. Davenport, R. M. Basker, J. R. Heath, J. P. Ralph, P-O. Glantz5 and P. Hammond: Indirect retention, EBRUARY 10, VOLUME 190, NO. 3, PAGES 128-132.
2001
13.Davenport, J. C., R. M. Basker, J. R. Heath, J. P. Ralph, P-O. Glantz5 and P. Hammond:Surveying NOVEMBER 25, VOLUME 189, NO. 10, PAGES 532-542. 2000
14.Davenport, J. C.,. Basker R. M,. Heath, J. R. Ralph J. P,. Glantz P-O and Hammond P.: Tooth preparation, MARCH 24, VOLUME 190, NO. 6, PAGES 288-294.
2001.
15. Davenport J. C., R. M. Basker, J. R. Heath, J. P. Ralph, P-O. Glantz5 and P. Hammond: Bracing and reciprocation, JJANUARY 13, VOLUME 190, NO. 1, PAGES
10-14,2001.
16.Davies, R. M. J. Gray and J. F. McCord: Good occlusal practice in removable prosthodontics NOVEMBER 10, VOLUME 191, NO. 9, PAGES 491-502. 2001
17.Jacobson TE, Krol AJ. Rotational path removable partial denture design. J Prosthet Dent;48:370-376. 1982
18.Jacobson TE. Rotational path partial denture design: A 10-year clinical follow-up—Part I. J Prosthet Dent;71:271-277. 1994
19.Kaddah, A. F.: OCCLUSION IN PROSTHODONTICS, Varieties, Aberrations & Management. Dar Eletehad. First Co. First ed. Cairo Egypt. 98/7071, 1998.
20.Kratochvil : Removable Partial Prosthodontics, 5th ed. St. Louis (MO): C.V. Mosby Co. 1990.
21.Krol AJ, Finzen FC. Rotational path removable partial dentures: Part 1. Replacement of posterior teeth. Int J Prosthodont;1: 17-27. 1988
22.McCracken W. L.: Partial denture construction. Eleventh ed. St. Louis (MO): C.V. Mosby Co.; 2005
23.Raymond J. Byron Jr.,. Robert Q. Frazer, , Michael C. Herren,: Rotational path removable partial denture: An esthetic alternative. Featured in General
Dentistry, May/June. Pg. 245-250. 2007.
24.Reagan SE, Dao TM. Oral rehabilitation of a patient with congenital partial anodontia using a rotational path removable partial denture: Report of a case. Quintessence
Int;26:181-185. 1995.
25.Schwartz RS, Murchison DG. Design variations of the rotational path removable partial denture. J Prosthet Dent 1987;58:336-338.ic principles of Removable Partial
Denture. Clinical course. Fifth ed. 1990.
26.Swenson M, Terklo L.: Partial denture. 1st ed. St. Louis (MO): C.V. Mosby Co.1975.
27. Ting-Ling Chang: Removable Partial Dentures; Division of Advanced Prosthodontics – lecture, UCLA School of Dentistry.
Bibliography
