Occlusion and Restorative Dentistry 2 Flashcards
What can be used to mark tooth contacts?
Millers Forceps
Fine articulating paper
When should tooth contacts be marked?
Before preparing a tooth or removing a restoration
After placing a crown or a restoration
What are functional cusps?
Cusps that occlude with the opposing teeth in ICP
The palatal cusps of the upper posterior teeth and the buccal cusps of the lower posterior teeth
What are non functional cusps?
Cusps that do not occlude with the opposing teeth in ICP
The buccal cusps of the upper posterior teeth and the lingual cusps of the lower posterior teeth
What are fossa?
Depression or concavity on the tooth surface
Functional cusp of a tooth contacts the fossa of the opposing tooth
What are the ICP contacts?
The palatal cusp of an upper molar contacts the fossa of a lower molar
The buccal cusp of a lower molar contacts the fossa of an upper molar
What is overbite?
Vertical overlap of the incisors
What is overjet?
Relationship between the upper and lowe teeth in a horizontal plane
What is crossbite?
Where one or more teeth may be abnormally malpositioned buccally, lingually, or labially with reference to opposing teeth
What is an anterior open bite?
Lack of vertical overlap of anterior teeth when posterior teeth are in full occlusion
What is a posterior/lateral open bite?
Failure of contact between the posterior teeth when the teeth are in full occlusion
What is canine guidance?
When the mandible moves to the working side, there is contact only between the canines
No posterior tooth contacts
Also known as a mutually protected occlusion
Describe a mutually protected occlusion
Gold standard
Canine guidance
Posterior disclusion in lateral excursions
No non-working side/working side contacts
No protrusive interferences
What is group function?
When the mandible moves to the working side, multiple teeth on that side will contact
When is bilateral group function commonly seen?
In toothwear
