Occlusion & Restorative Dentistry 1

Question 1

what is intercuspal position (ICP)?

Answer 1

• the most comfortable bite where best fit of teeth occurs
• also called centric occlusion

Question 2

what is Edge to edge (E)?

Answer 2

• teeth slide forward from ICP guiding on palatal surfaces of anterior teeth
• incisal edges of upper & lower incisors touch
• posterior teeth shouldnt make contact

Question 3

what is protrusion (Pr)?

Answer 3

• condyle of mandible moves forward and downwards on the articular eminence
• only incisors +/- canines touch
• no posterior tooth contacts

Question 4

what is maximum opening (T)?

Answer 4

• no tooth contacts
• mouth wide open
• full translation of the condyle over the articular eminence

Question 5

what is the retruded contact position (RCP)?

Answer 5

• First tooth contact when mandible is in retruded axis position
• ICP is approximately 1mm anterior to RCP in 90% of population

Question 6

what is meant by the working side during lateral translation of the mandible?

Answer 6

the working side is the side the mandible is moving towards

Question 7

what is the bennett movement?

Answer 7

lateral translation of mandible

Question 8

what is the bennett angle?

Answer 8

the angle created on the NON-WORKING side by the condyle during lateral excursion (movement)