RETENTION IN COMPLETE DENTURES

(Remembering) What is the main factor that contributes to the retention of a complete denture?

• The size of the patient's mouth
• The shape of the patient's teeth
• The fit of the denture base
• The elasticity of the denture material
• The strength of the denture adhesive

(Remembering) What is the process of creating suction between the denture and the oral mucosa called?

• Impression taking
• Relining
• Adaptation
• Suctioning
• Bonding

(Understanding) Which of the following techniques can be used to improve the retention of a complete denture?

• Increasing the number of denture teeth
• Decreasing the thickness of the denture base
• Using a softer denture material
• All of the above
• None of the above

(Analyzing) A patient complains that their lower complete denture is not stable and tends to rock when they chew. Which of the following factors could be contributing to this issue?

• The lower denture has a poor fit
• The lower denture has insufficient retention
• The patient has a high palate
• The patient has a small jaw
• Both a and b

(Evaluating) A patient has a complete upper denture and a partial lower denture. Which of the following statements is true about the retention of the upper denture?

• The upper denture will have better retention because it has more support from the natural teeth
• The upper denture will have worse retention because it has less support from the natural teeth
• The retention of the upper denture will not be affected by the presence of the partial lower denture
• It is impossible to predict the retention of the upper denture without more information
• Both a and c

(Remembering) What is the term for the force that holds a denture in place?

• Retention
• Adhesion
• Friction
• Cohesion
• Tension

(Remembering) Which of the following is NOT a type of retention used in complete dentures?

• Gravitational retention
• Passive retention
• Active retention
• Kinetic retention
• Magnetic retention

(Understanding) How does increasing the number of denture teeth affect retention in a complete denture?

• It increases retention by providing more surface area for suction
• It decreases retention because it reduces the amount of denture base material
• It has no effect on retention
• It increases retention by providing more support for the denture
• It decreases retention because it increases the weight of the denture

(Analyzing) A patient's complete dentures are difficult to remove and require a lot of force to take out. Which of the following could be contributing to this issue?

• The patient has a strong gag reflex
• The patient has a small jaw
• The dentures have poor retention
• The dentures are too large
• Both c and d

(Evaluating) A patient's complete dentures feel loose and unstable when they chew. Which of the following actions would be most appropriate for the dentist to take?

• Advise the patient to use a stronger denture adhesive
• Recommend relining the dentures to improve fit
• Recommend reducing the number of denture teeth
• Suggest using a softer denture material
• Both b and c