Occlusion Flashcards
Intercuspal position
Maximum contact between teeth on maxilla and teeth on the mandible, you will see teeth interdigitating
When asking a patient to close their mouth , should you ask to bite together?
no, because there if a tendency to protrude, you should ask them to close on their back teeth
What do you need in intercuspal position?
Index teeth
What is the importance of index teeth
Contacting facets of teeth in the intercuspal position
What happens if you have enough index teeth?
you get a stable occlusion and you may be able to hand articulate the casts because you have sufficient opposing natural teeth
What happens if there is insufficient numbers of index teeth?
Vertical stops on the anterior teeth, you would need to record occlusion
What position do you use if there is not a stable occlusion?
ligamentous position
What is ligamentous position?
the position of the mandible on the retruded arc of closure when tooth contact first occurs
when might we use ligamentous position?
close on different position every time you ask them to bite or if the patient slides about in occlusion
how do you record ligamentous position?
tongue curled to the back of the palate and close your teeth together and teeth will close in slightly more posterior position
what is an alternative name for ligamentous position
Retruded contact position
what might happen in an unstable occlusion?
- the mouth may be proped open if the anterior teeth act as an occlusal stop
- there may be limited space to place a prosthesis
What is the target of the freeway space?
2-4mm
What should we try to achieve when restoring teeth
stable occlusion, teeth that are meeting in a reproducible way
After you record occlusion what should you consider and how do you avoid this?
Where you are putting different components of the denture and ensure they fit into the occlusion that you have recorded for your patient. Use tooth preparation to make space for the components
