Pros Tutorials 2 Flashcards
what is meant by a post immediate addition to a denture
when a tooth is lost after denture construction and tooth is added at a later date
what is meant by an immediate addition to a denture
tooth is lost after denture construction and tooth is added to denture on day of extraction
what is meant by a retention addition to a denture
done when retention inadequate
clasp may be added (usually wrought SS)
advantages of acrylic
cheap
easy to repair
easy to add too
aesthetically pleasing
disadvantages of acrylic
low impact resistance
poor resistance to fracture fatigue
water absorption
candida growth
constituents of acrylic
powder: polymer, initiator (benzoyl peroxide), pigments
liquid: monomer, cross linking agent, inhibitor
if incorporating rest seats into crowns, should denture design or crown placement be done first
denture design
name 2 examples of precision attachments
studs
tubelocks
how thick should rest seats be
1mm
why should rest seat preps not have a flat base
increased risk of cuspal fracture
should have saucer shaped base so forces transmitted in all directions
dentures and xerostomia
lack of adhesion cohesion for retention
lack of lubrication meaning more rubbing, pain and discomfort
associated oral mucosal problems - candida, angular chelitis
what effects does anaemia have on the oral mucosa
atrophy
what lines give indications of anterior and posterior occlusal planes
anterior - inter pupillary
posterior - ala-tragus
when would cuspless posterior teeth be used in complete dentures
bruxists
class III
