Podcast
Questions and Answers
What factor is directly proportional to the surface area covered for maxillary denture retention?
What factor is directly proportional to the surface area covered for maxillary denture retention?
- Cohesion
- Interfacial surface tension
- Adhesion (correct)
- Viscosity
Which anatomical factor enhances retention by permitting excellent peripheral seal for the lower denture?
Which anatomical factor enhances retention by permitting excellent peripheral seal for the lower denture?
- Soft palate anatomy
- Arch relationship
- Tongue size (correct)
- Ridge height
What is considered retentive to the lower denture and displacing to the upper denture?
What is considered retentive to the lower denture and displacing to the upper denture?
- Gravity (correct)
- Adhesion
- Interfacial surface tension
- Cohesion
What is the potential space where forces from the lips & cheeks on one side are neutralized by those of the tongue on the other side?
What is the potential space where forces from the lips & cheeks on one side are neutralized by those of the tongue on the other side?
What surgical procedure involves deepening of the vestibule to gain ridge height?
What surgical procedure involves deepening of the vestibule to gain ridge height?
What psychological factor influences the ability of some patients to cope and use the denture?
What psychological factor influences the ability of some patients to cope and use the denture?
What is the first factor to consider for a denture to be stable?
What is the first factor to consider for a denture to be stable?
What type of palate provides the most favorable retention and stability for dentures?
What type of palate provides the most favorable retention and stability for dentures?
What action is known as 'lever balance' in denture stability?
What action is known as 'lever balance' in denture stability?
What factor decreases the amount of load falling on the denture by having a width less than the natural?
What factor decreases the amount of load falling on the denture by having a width less than the natural?
What is the definition of retention in dentistry?
What is the definition of retention in dentistry?
What is the definition of stability in dentistry?
What is the definition of stability in dentistry?
Which factor affects retention due to capillary attraction?
Which factor affects retention due to capillary attraction?
What is the role of atmospheric pressure in denture retention?
What is the role of atmospheric pressure in denture retention?
What is the main factor contributing to adhesion in denture retention?
What is the main factor contributing to adhesion in denture retention?
What is the result of interfacial surface tension between well-adapted surfaces?
What is the result of interfacial surface tension between well-adapted surfaces?
How does capillary attraction affect denture retention?
How does capillary attraction affect denture retention?
What is the role of viscosity in denture retention?
What is the role of viscosity in denture retention?
What is the effect of gravity on denture retention?
What is the effect of gravity on denture retention?
Which factor contributes to the formation of a partial vacuum between the mucosa and the denture?
Which factor contributes to the formation of a partial vacuum between the mucosa and the denture?
Flashcards
Surface Area (Denture)
Surface Area (Denture)
The amount of area a maxillary denture covers. More surface area generally equals better denture retention.
Buccal Shelf
Buccal Shelf
A prominent ridge on the cheek side of the jaw. It improves retention for lower dentures.
Tongue (Denture Retention)
Tongue (Denture Retention)
The tongue can displace an upper denture but is a retention factor for a lower denture.
Vestibular Space
Vestibular Space
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Vestibuloplasty
Vestibuloplasty
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Denture Retention
Denture Retention
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Denture Stability
Denture Stability
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Hard Palate
Hard Palate
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Lever Balance (Denture)
Lever Balance (Denture)
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Denture Base Width
Denture Base Width
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Salivary Lubrication
Salivary Lubrication
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Atmospheric Pressure
Atmospheric Pressure
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Adhesion (Denture)
Adhesion (Denture)
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Surface Tension
Surface Tension
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Interfacial Tension
Interfacial Tension
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Capillary Attraction
Capillary Attraction
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Saliva Viscosity
Saliva Viscosity
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Gravity (Denture)
Gravity (Denture)
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Partial Vacuum (Denture)
Partial Vacuum (Denture)
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Study Notes
Surface Area
- The surface area covered by the maxillary denture is directly proportional to its retention.
Anatomical Factors
- The presence of a prominent buccal shelf enhances retention by providing a good peripheral seal for the lower denture.
- The tongue, in the lower denture, is considered retentive, while it displaces the upper denture.
Vestibular Space
- The potential space between the lips/cheeks and the tongue helps neutralize the forces on either side.
Surgical Procedures
- Vestibuloplasty involves deepening the vestibule to increase ridge height.
Psychological Factors
- Patient perception and coping skills significantly influence denture use and adaptation.
Stability and Retention
- Stability is the first factor to consider for a denture to be stable.
- A hard palate offers optimal retention and stability for dentures.
- Lever balance refers to the concept of balancing forces during chewing and swallowing.
- Width of the denture base, if smaller than the natural teeth, reduces the load on the denture.
Denture Definitions
- Retention refers to the resistance to vertical displacement of the denture.
- Stability refers to the resistance to horizontal or rotational movement of the denture.
Factors Affecting Retention
- Salivary lubrication contributes to retention through capillary attraction.
- Atmospheric pressure creates a partial vacuum between the denture and the mucosa, enhancing retention.
- Adhesion is mainly influenced by surface tension between the denture and the mucosa.
- Interfacial surface tension creates cohesiveness between properly adapted surfaces.
- Capillary attraction allows the saliva to act as a cohesive force, holding the denture against the tissues.
- Viscosity of saliva affects the rate and effectiveness of capillary attraction.
- Gravity can negatively impact retention, particularly for lower dentures.
Other Factors
- Partial Vacuum formation between the denture and the mucosa is due to the well- adapted surfaces and atmospheric pressure.
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Description
Test your knowledge of denture retention and stability with this quiz. Explore biological, physical, and mechanical factors that affect denture stability and retention, and understand the importance of psychological comfort and physiological support in denture design.
