Occlusion for Conventional Dentures Flashcards
what are the 7 steps of a jaw registration?
- adjust upper record block for retention
- adjust upper record block for tooth position
- adjust upper record block for occlusal planes
- lower tooth position & horizontal jaw relationship
- measure vertical dimension & establish face height
- record registration
- select shade, mould & setting
What can occur if there is overextension of the peripheries of an upper record block?
loss of retention
what does LIMBO stand for?
- lip support
- incisal level
- midline
- buccal corridor
- occlusal plane
When adjusting an upper record block for tooth position, what should be done first?
Examine current denture
- what is patients opinion on current tooth show
- modify or keep
- is it age appropriate
What is the recommended nasiolabial angle to achieve?
90 degrees
What is the only fixed point in the upper dentition?
Incisive papilla
How far should incisors be from the incisive papilla?
approx. 5mm
How much of the teeth do you wan to show approx?
1-2mm of show
What marks are placed on the record block?
- midline
- lip line
- canine line
What should the Fox’s Bite Plane align with anteriorly?
Interpupillary line
What should the Fox’s Bite Plane align with posteriorly/laterally?
ala-tragus line
What will occur if teeth & buccal flange of denture are too close to cheek?
Denture dislodges with cheek movement
what occurs if the denture sits lingually?
tongue lifts denture when moves
What is the OVD?
Occlusal Vertical Dimension
- the distance between a set point on the maxilla and a set point on the mandible when the teeth are in maximum intercuspation
What is the RVD?
Resting Vertical Dimension
- when the mandible is at rest with patient upright **
