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RPDDNT2


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branch of dentistry that deals with the design, fabrication, and fitting of artificial replacements for teeth and other parts of the mouth
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Prosthodontics

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RPDDNT2 - Marcador

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RPDDNT2 - Detalles

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Preguntas:

389 preguntas
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Some cultures also used ________ to make dentures
Gold, copper, and teeth from animals
Types of undercut
Beneficial and nonbeneficial
Remaining bone under soft tissue
Residual Ridge or Edentulous ridge
Types of arches in the oral cavity
Dentulous and edentulous
RPD aims for ____ and _____
Restoration and maintenance
RPD is the maintenance and restoration of what?
Oral functions, comfort, appearance, and health of the patient
In what way do we restore and maintain structure in RPD
Restoration of natural teeth and/or the replacement of missing teeth and craniofacial tissues with artificial substitutes
CONSIDERATIONS IN PROSTHODONTIC TREATMENT:
Oral functions, comfort, health and apperance
Consequences of denture movement under load:
Stress to the abutments and tissue in contact with the prosthesis
In designing RPD: goal
Provide and maintaining a stable prosthesis:
POSSIBLE MOVEMENT OF A PARTIAL DENTURE: Movement from front to back
Rotation about an axis (fulcrum) through the most posterior abutment
Rotation about an axis (fulcrum) through the most posterior abutment: Vertical tissue ward movement is resisted by
Residual ridge, accuracy of the fit of the denture base, Total amount of occlusal load applied
POSSIBLE MOVEMENT OF A PARTIAL DENTURE: Moves left to right or buccally to lingually
Rotation about a longitudinal axis as the distal extension base moves in a rotary direction about the residual ridge.
Goals of designing RPD
Consideration of basic biomechanical principles, Oral hygiene, Appropriate prostheses maintenance
DESIGN PROCESS FOR REMOVABLE PARTIAL DENTURES: objectives
Limited functional movement within tooth-tissue tolerance
DESIGN PROCESS FOR REMOVABLE PARTIAL DENTURES: choice or solution
Alternative based on learned principles and concepts
The rationale for design should logically develop from:
Analysis of the unique oral condition of each mouth
DESIGN PROCESS FOR REMOVABLE PARTIAL DENTURES: background information
Tissue load displacement character and potential; effects of prev dentuer
Consideration of the forces inherent in the oral cavity is critical
Direction, duration, frequency, and magnitude
Physiologic tolerance
Capacity of oral structures to receive stresses without damage
Six phases of partial denture service:
Patient education; Diagnosis, treatment planning, design, treatment, sequencing and mouth preparation;Support for distal extension bases;Establishment and verification of oclusal relation and tooth arrangemnts;Inititial placment procedures; Periodic recall
Six phases of partial denture service:Patient education; Secure
Informed consent, patient cooperation and high level of patient compliance
Six phases of partial denture service:evaluate what in periodic recall
Fit (movement), functionality of denture, compliance of patient
TYPES OF RPD
Assresin appliance, resin with wire clasp, resin with castsed clasp
Remaining teeth usually
Mandibular anterior/Mandibular canine
Anatomical result of tooth loss
Broader mandible and constriction of maxilla
Clinical significance of anatomic loss of teeth
Hard time setting the pontics esp with remaining tooth because the jaw relationship is already class III
Why does the jaw protrude?
Compensate to cover/ close the mouth
Changes in facial features due to:
Altered lip support, reduced facial height
Attached gingiva is replaced with
Less keratinized oral mucosa
Clinical significance of less keratinized oral mucosa
Prone to trauma, lacerations, or to ulcers
Physiologic effects of tooth loss
Diminished masticatory effect, speech
Index of food reduction
Masticatory efficiency
TOOTH REPLACEMENT FROM THE PATIENT’S PERSPECTIVE
Improves health/condition but not necessarily cure
Those that we cannot control:
Accidental trauma, parafunctional habits
A typical sequence is used to discuss tooth replacement options:
Dental implant supported prosthesis, fixed prosthesis, rpd/cd
Purpose of Classification:
Facilitate treatment decisions on the basis of treatment complexity
Complexity is determined from the four broad diagnostic categories
Location and extent of edentulous areas, Condition of the abutments, Occlusal characteristics and requirements, Residual ridge characteristics
Requirements of an Acceptable Method of Classification
It should permit immediate visualization of the type of partially edentulous arch that is being considered, It should permit immediate differentiation between tooth-supported and tooth-tissue-supported RPD, It should be universally acceptable
What then defines important differences between these prostheses?
Technical outcomes, physical outcomes, esthetic outcomes, maintenance needs, initial and future costs, physiologic outcomes
The replacement prosthesis ideally should provide
Function, level of comfort as equivalent as possible to normal dentition (gold standard).