Occlusion & Articulation Flashcards
7 cards from real CDT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Occlusion & Articulation flashcards as text
How is centric occlusion defined in dental terminology?
Answer: The position of maximum intercuspation of opposing teeth
Centric occlusion is the position of maximum intercuspation where opposing teeth fit together with the greatest number of tooth contacts.
What is the primary purpose of a face-bow transfer in dental prosthetics?
Answer: To relate the maxillary cast to the hinge axis of the articulator
A face-bow transfer records the spatial relationship of the maxillary arch to the temporomandibular joint hinge axis so the upper cast can be correctly mounted on the articulator.
Which type of articulator is capable of replicating all three-dimensional mandibular movements?
Answer: Fully adjustable articulator
A fully adjustable articulator can be programmed with individualized condylar settings obtained from pantographic records to replicate all mandibular movements.
What is balanced occlusion as it applies to complete dentures?
Answer: Simultaneous bilateral tooth contacts in centric and all eccentric positions
Balanced occlusion in complete dentures requires simultaneous bilateral tooth contacts in centric and all eccentric positions to stabilize the denture bases and prevent tipping.
What is the accepted definition of centric relation?
Answer: The musculoskeletally stable position of the condyles in the glenoid fossae
Centric relation is the musculoskeletally stable position where the condyles are in the most superoanterior position against the articular eminences with the discs properly interposed.
What is a protrusive interocclusal record primarily used to set on a semi-adjustable articulator?
Answer: The condylar inclination (sagittal condylar guidance)
A protrusive interocclusal record is used to set the condylar inclination, which simulates the downward slope of the articular eminence guiding condylar movement.
Which Angle's classification describes a normal molar relationship (Class I)?
Answer: The mesiobuccal cusp of the upper first molar occludes in the buccal groove of the lower first molar
Angle's Class I is defined by the mesiobuccal cusp of the maxillary first molar occluding in the buccal groove of the mandibular first molar, representing the ideal molar relationship.