Lesson 1&2 Flashcards
FUNCTIONAL RESTORATION WITH RPD
→ mastication
→ food reduction
→ esthetics
→ speech
joins the left and right side of the RPD
Major Connector
prevents denture from moving
also known as an indirect retainer can be on cingulum, incisal or buccal
Rests
prevents dislodgement forces; hugs the tooth
Direct Retainer
connects rest of the parts to the major connector
Minor Connector
always found on proximal areas
Guide Plane
connects other components to the major connector
Indirect Retainer
TYPES OF CLASP ASSEMBLY
RPA
RPI
RPC
Rest, Proximal Plane, Aker’s Clasp
RPA
RPI
Rest, Proximal Plane, I-Bar
RPC
Rest, Proximal Plane, Circumferential
TYPES OF PROSTHESES
TOOTH-SUPPORTED DENTURES
TOOTH AND TISSUE-SUPPORTED DENTURES
the edentulous space is between an anterior abutment teeth and posterior abutment teeth
A. TOOTH-SUPPORTED DENTURES
B. TOOTH AND TISSUE-SUPPORTED DENTURES
A
it is like a fixed bridge since the denture finds its support, stability and retention directly beside the edentulous space
A. TOOTH-SUPPORTED DENTURES
B. TOOTH AND TISSUE-SUPPORTED DENTURES
A
retention is partially placed on the abutment tooth right next to the edentulous space
A. TOOTH-SUPPORTED DENTURES
B. TOOTH AND TISSUE-SUPPORTED DENTURES
B
support and stability for vertical and horizontal movements are distributed to the edentulous spaced (soft tissue and residual ridge)
A. TOOTH-SUPPORTED DENTURES
B. TOOTH AND TISSUE-SUPPORTED DENTURES
B
1-3 mm of tissue rebound
A. TOOTH-SUPPORTED DENTURES
B. TOOTH AND TISSUE-SUPPORTED DENTURES
B
T/ F
DISADVANTAGES OF RPD
strain on the abutment teeth is often caused by improper tooth preparation, clasp design, and/or loss of tissue support under the distal extension partial denture bases
T
T/ F
DISADVANTAGES OF RPD
clasp can be unesthetic, particularly when they are placed on visible tooth surfaces without consideration of esthetic impact
T
T/ F
DISADVANTAGES OF RPD
caries may develop beneath clasp and other framework
components, especially if the patient fails to keep the prosthesis and the abutments clean
T
making the appropriate diagnosis, deciding a removable partial denture is indicated, and providing patient education regarding removable partial denture expectations over time
A. PHASE 1
B. PHASE 2
C. PHASE 3
D. PHASE 4
E. PHASE 5
F. PHASE 6
A
preliminary impression taking and diagnostic cast fabrication, articulation, & patient education
A. PHASE 1
B. PHASE 2
C. PHASE 3
D. PHASE 4
E. PHASE 5
F. PHASE 6
A
treatment planning, design of the partial denture framework, treatment sequencing, and execution of mouth preparations
A. PHASE 1
B. PHASE 2
C. PHASE 3
D. PHASE 4
E. PHASE 5
F. PHASE 6
B
Arrange
A. treatment planning, design of the partial denture framework, treatment sequencing, and execution of mouth preparations
B. Treatment planning should be made accordingly (PSEROP)
C. Clinical and radiographic examination of the patients remaining teeth
(a) Caries
(b) Condition of existing restorations
(c) Periodontal conditions
(d) Response of teeth (abutment teeth) and the
residual ridge
(e) Vitality of the remaining teeth
D. Partial denture designing according to the patient’s
remaining oral structures
A
C
B
D
provision of adequate support for the distal extension denture base
A. PHASE 1
B. PHASE 2
C. PHASE 3
D. PHASE 4
E. PHASE 5
F. PHASE 6
C
establishment and verification of harmonious occlusal relationships and tooth relationships with opposing and remaining natural teeth
A. PHASE 1
B. PHASE 2
C. PHASE 3
D. PHASE 4
E. PHASE 5
F. PHASE 6
D
initial placement procedure
A. PHASE 1
B. PHASE 2
C. PHASE 3
D. PHASE 4
E. PHASE 5
F. PHASE 6
E
adjustments to the contours and bearing surfaces of denture
bases
A. PHASE 1
B. PHASE 2
C. PHASE 3
D. PHASE 4
E. PHASE 5
F. PHASE 6
E
adjustments to ensure occlusal harmony
A. PHASE 1
B. PHASE 2
C. PHASE 3
D. PHASE 4
E. PHASE 5
F. PHASE 6
E
review of instructions given the patient to optimally maintain
oral structures and provided restorations
A. PHASE 1
B. PHASE 2
C. PHASE 3
D. PHASE 4
E. PHASE 5
F. PHASE 6
E
follow-up services by the dentist through recall appointments for periodic evaluation of the responses of oral tissue to restorations and of the acceptance of restorations by the patient
A. PHASE 1
B. PHASE 2
C. PHASE 3
D. PHASE 4
E. PHASE 5
F. PHASE 6
F
failure to use a surveyor or to use a surveyor properly
DIAGNOSIS AND TREATMENT PLANNING
MOUTH PREPARATION PROCEDURES
→ failure to properly sequence mouth preparation procedures
→ inadequate mouth preparations, usually resulting from insufficient planning of the design of the partial denture or failure to determine that mouth preparations have been
properly accomplished
→ ______ supporting tissue to optimum health before
impression procedures are performed
→ inadequate impressions of hard and soft tissue
failure to return
failure to use properly located and sized rests
DESIGN OF THE FRAMEWORK
→ flexible or incorrectly located major and minor connectors
→ incorrect use of clasp designs
→ use of cast clasps that have too little flexibility, are too broad in tooth coverage, and have too little consideration for esthetics
DESIGN OF THE FRAMEWORK
failure to develop a harmonious occlusion
OCCLUSION
failure to use compatible materials for opposing occlusal
surfaces
OCCLUSION
failure of the dentist to provide adequate dental health care information, including details on care and use of the prosthesis
PATIENT-DENTIST RELATIONSHIP
failure of the dentist to provide recall opportunities on a periodic basis
PATIENT-DENTIST RELATIONSHIP
failure of the patient to exercise a dental health care regimen and respond to recall
PATIENT-DENTIST RELATIONSHIP
**
→ it permits treatment for the largest number of patients at a reasonable cost
→ it provides restorations that are comfortable and efficient over a long period of time, with adequate support and maintenance of occlusal contact relations
→ it can provide for healthy abutments, free of caries and periodontal disease
→ it can provide for the continued health of restored, healthy tissue of the basal seats
→ it makes possible a partial denture service that is definitive and not merely an interim treatment
OUR GOALS
WHY DO WE NEED TO CLASSIFY PARTIALLY EDENTULOUS ARCHES?
→ to facilitate treatment decisions on the basis of treatment complexity
→ to formulate a well-designed treatment plan
→ to design an appropriate denture for the expected occlusal
load for a particular class
→ for the purpose of assisting our management of partially
edentulous patients
REQUIREMENTS FOR CLASSIFICATION
→ should permit _____ of the type of partially edentulous arch that is being considered
→ should permit immediate ____ between the tooth-supported and the tooth- and tissue-supported removable partial denture
→ should be _____ acceptable
visualization
differentiation
universally
most widely used method of classification
KENNEDY METHOD OF CLASSIFICATION
attempts to classify the partially edentulous arch in a manner
that suggest certain principles of design for a given situation
KENNEDY METHOD OF CLASSIFICATION
Who proposed KENNEDY METHOD OF CLASSIFICATION? And what year?
Dr. Edward Kennedy
1925
bilateral edentulous areas located posterior to the natural teeth
Class I
unilateral edentulous areas located posterior to the natural teeth
Class II
a unilateral edentulous area with natural teeth remaining both anterior and posterior to it
Class III
a single, but bilateral (crossing the midline), edentulous area located anterior to the remaining natural teeth
Class IV
APPLEGATE’S RULE
Classification should follow rather than precede any extractions of teeth that might alter the original classification
RULE 1
APPLEGATE’S RULE
If a third molar is missing and is not to be replaced, it is not considered in the classification
RULE 2
APPLEGATE’S RULE
If a third molar is present and is to be used as an abutment, it is considered in the classification
Rule 4
APPLEGATE’S RULE
The most posterior edentulous area (or areas) always determines the classification
Rule 5
APPLEGATE’S RULE
Edentulous areas other than those that determine the classification are referred to as modifications and are designated by their number
Rule 6
APPLEGATE’S RULE
The extent of the modification is not considered, only the number of additional edentulous areas
RULE 7
APPLEGATE’S RULE
No modification areas can be included in Class IV arches. (Other edentulous areas that lie posterior to the single bilateral areas crossing the midline would instead determine the classification; see rule 5)
RULE 8
