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25 Cards in this Set
- Front
- Back
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Edentulism
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Loss of all permanent teeth
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What is the rate of edentulism proportional to?
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It is inversely proportional to education and income level
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Prosthesis
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artificial replacement of an absent part of the human body
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Prosthodontics
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branch of dental art and science pertaining to the restoration and maintenance of oral function by replacement of missing teeth and structures with artificial devices
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Intaglio surface
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interior surface of the denture base that is in contact with the surface of the underlying mucosa called basal seat
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Basal Seat
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Anatomical structure that is in contact with the denture. Includes residual alveolar ridge, and palate
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Labial Notch
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a depression in the border of a denture that accommodates the labial frenum
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Labial Flange
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the portion of the denture that occupies the labial vestibule of the mouth
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Buccel Flange
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portion of a denture base that occupies the cheek/buccal side of the mouth and extends distally from the buccal notch
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Retention
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resistance to the movement of a denture from its basal seat in a direction opposite to that in which it was inserted
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Support
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resistance of the denture to the vertical components of mastication and to the occlusal or other forces applied in a direction toward the basal seat
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Stability
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quality of being firm, steady, and constant in position when forces are applied to the denture (mostly horizontal forces)
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What makes up the bony foundation of the maxillary arch?
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Palatine process of Maxilla
Horizontal palate of Palatine bone Zygomatic process Hamular/Pterygomaxillary notch |
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What is the primary stress bearing area int he maxillary arch?
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Residual alveolar ridge
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What is the secondary stress bearing area in the maxillary arch?
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Rugae
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What anatomical landmarks are used to establish posterior extension of the dentures?
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Fovea palatinea
Vibrating line |
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What factors influence retention of dentures?
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Interfacial force
Adhesion Cohesion Oral and facial musculature Atmospheric pressure |
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Interfacial force
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Influences retention of dentures
Resistance to separation of two well adapted contacting surfaces that are imparted by a film of liquid between them |
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Adhesion
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Influences retention of dentures
the physical attraction of unlike molecules for each other |
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Cohesion
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Influences retention of dentures
the physical attraction of like molecules for each other |
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How can oral and facial musculature effect retention of dentures?
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musculature supplies supplementary retentive forces, provided
(1) the teeth are positioned in the “neutral zone” between the cheeks and tongue and (2) the polished surfaces of the dentures are properly shaped |
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How does atmospheric pressure effect retention of dentures
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Pressure applied by the atmosphere is 14.7lb/square inch
Atmospheric pressure can act to resist dislodging forces applied to dentures if the dentures have an effective seal around their borders |
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What type of material is Alginate?
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Irreversible Hydrocolloid Impression Material
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What is the primary stress bearing area for mandibular dentures?
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Buccal shelf
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What is the secondary stress bearing area of the mandibular arch?
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Residual alveolar ridge
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