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Complete dentures

Description

A quiz about dentures.
Rachael Eleanor Alexandra
Quiz by Rachael Eleanor Alexandra, updated more than 1 year ago
Rachael Eleanor Alexandra
Created by Rachael Eleanor Alexandra over 6 years ago
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Resource summary

Question 1

Question
True or false: rebasing a denture can lead to an increase in OVD
Answer
  • True
  • False

Question 2

Question
During a chairside soft reline procedure, the setting reaction of the material is:
Answer
  • Condenstion
  • Gelation
  • Addition
  • Hydroxylation

Question 3

Question
The aromatic ester in the liquid part of a soft chairside reline material is a...
Answer
  • Plasticiser
  • Primer
  • Adhesive
  • copolymer

Question 4

Question
Long term soft liners are made of one of two materials: Silicone and Acrylic. Silicone materials can be either [blank_start]cold[blank_end] curing or [blank_start]heat[blank_end] curing. Acrylic long term soft liners are [blank_start]heat[blank_end] cured - cold cured acrylics are only suitable for very [blank_start]short[blank_end] term linings and tissue [blank_start]conditioning[blank_end]. Cold curing silicone materials contain filler. As the level of filler rises, so does the level of [blank_start]water sorption[blank_end] and worsening of dimensional stability. The material is liable to [blank_start]tear[blank_end] and detach from the denture base. The [blank_start]abrasion[blank_end] resistance are poor. Heat curing silicone materials have lower levels of water sorption. [blank_start]Dimensional[blank_end] stability is therefore higher and the [blank_start]adhesion[blank_end] to the denture base is better. Long term soft acrylic linings contain either poly[blank_start]ethyl[blank_end]methacrylate or poly[blank_start]butyl[blank_end]methacrylate polymers and are heavily p[blank_start]lasticised[blank_end] to create softness.
Answer
  • cold
  • heat
  • heat
  • short
  • conditioning
  • water sorption
  • tear
  • abrasion
  • Dimensional
  • adhesion
  • ethyl
  • butyl
  • lasticised

Question 5

Question
Which image shows the penetration recovery curve for silicone soft liners?
Answer

Question 6

Question
A material that reacts almost instantly to a force, and removal of the force, is said to be:
Answer
  • Thermoplastic
  • Viscoelastic
  • Elastic
  • Plastic

Question 7

Question
A material that has a delayed response to the application and removal of a force is said to be:
Answer
  • Thermoplastic
  • Viscoelastic
  • Plastic
  • Elastic

Question 8

Question
Which material is better at absorbing shock?
Answer
  • Acrylic soft lining
  • Silicone soft lining

Question 9

Question
True or false: acrylic soft lining materials harden and become less elastic with time
Answer
  • True
  • False

Question 10

Question
True or false: silicone soft lining materials become harder with time due to leakage of plasticiser
Answer
  • True
  • False

Question 11

Question
True or false: it is better to process soft lining materials and the denture base at the same time to ensure better bond strength
Answer
  • True
  • False

Question 12

Question
True or false: there is a marked benefit in increasing the thickness of silicone soft liners to improve impact resistance
Answer
  • True
  • False

Question 13

Question
The "ideal interdigitation of teeth in which there is no cuspal interference in any position of jaw closure" is known as...
Answer
  • Centric occlusion
  • Balanced articulation
  • Balanced occlusion

Question 14

Question
Balanced articulation is a "...." relationship?
Answer
  • Static
  • Dynamic
  • Centric
  • AP
  • Transverse

Question 15

Question
The curve of Spee is in the "..." direction?
Answer
  • Transverse
  • AP
  • Vertical

Question 16

Question
The "vertical distance between two arbitrary fixed points, one on the maxilla and one on the mandible, where the teeth are in occlusion" is know as the...
Answer
  • Freeway space
  • Occlusal vertical dimension
  • Resting vertical dimension
  • Centric relation

Question 17

Question
The problem with this man's dentures is likely a...
Image:
bfad162c-d25a-4935-ba8a-28d672736685 (image/png)
Answer
  • Lack of freeway space
  • Increased OVD
  • Increased freeway space

Question 18

Question
You are carrying out an intra-oral examination of a patient's denture. The patient's denture drops down when they open their mouth. What is the LEAST likely cause of this problem?
Answer
  • Problem with the polished surfaces
  • Problem with the occlusal surfaces
  • Problem with the fitting surfaces

Question 19

Question
You attempt to move a patient's lower denture back in their mouth to check stability. The denture freely moves backwards. What is the likely cause of this problem?
Answer
  • Action of the mentalist muscle
  • Overextension
  • Underextension
  • Posterior teeth above occlusal plane
  • Posterior teeth below occlusal plane

Question 20

Question
Complete dentures are usually set up on what type of articulator?
Answer
  • Semi adjustable
  • Simple hinge
  • Average value

Question 21

Question
A face bow record facilitates mounting on what type of articulator?
Answer
  • Average value
  • Fully adjustable
  • Semi adjustable

Question 22

Question
Antidepressants and tranquillisers can cause which of the following problems with dentures?
Answer
  • Generalised soreness of the mucosa
  • Tonacity of facial muscles
  • Reduced adaptation ability
  • Bone resorption
  • Acute ulceration
  • TMJ disorders

Question 23

Question
How much of the crest height should be expected to be lost each year in an edentulous patient?
Answer
  • 0.5-1mm
  • 0.2-0.3mm
  • 0.6-0.7mm
  • 0.1-0.2mm

Question 24

Question
How much crest height is usually lost from the alveolar ridge in the first year after extraction?
Answer
  • 2-3mm
  • 0.2-0.3mm
  • 5-10mm
  • 0.5-1mm

Question 25

Question
True or false? surgical removal of a flabby ridge will enable a less bulky denture to be made
Answer
  • True
  • False

Question 26

Question
True or false? a flabby ridge should be recorded with a mucostatic technique
Answer
  • True
  • False

Question 27

Question
True or false: a flabby ridge recorded with a mucodisplacive technique will maximise support from the ridge
Answer
  • True
  • False

Question 28

Question
True or false: a flabby ridge recorded with a mucostatic technique will result in poorer retention
Answer
  • True
  • False

Question 29

Question
On the upper denture, which cusps are supporting cusps?
Answer
  • Palatal
  • Buccal
  • Both palatal and buccal
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