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
What defines a cusp-to-fossa occlusal arrangement?
Answer: Each supporting cusp is directed into the opposing central fossa
In cusp-to-fossa occlusion, the supporting cusps are directed into the opposing central fossae, creating stable tripod centric contacts and favorable load distribution along the long axis of teeth.
What is the primary function of anterior guidance in fixed prosthodontic restorations?
Answer: To disclude posterior teeth during eccentric mandibular movements
Anterior guidance causes immediate disclusion (separation) of posterior teeth during all eccentric movements, protecting posterior restorations from destructive lateral forces.
What characterizes a lingualized occlusal scheme used in complete dentures?
Answer: Maxillary palatal cusps contact mandibular tooth central fossae exclusively
Lingualized occlusion positions only the maxillary palatal cusps to contact the mandibular central fossae, combining balanced occlusion stability with improved esthetics and chewing efficiency.
What is the clinical significance of the curve of Spee in dental prosthetics?
Answer: It is the anteroposterior curvature of the mandibular occlusal plane from canine to molar
The curve of Spee is the anteroposterior curvature of the mandibular occlusal plane, incorporated into complete denture tooth arrangements to facilitate balanced occlusion.
In canine-protected (mutually protected) articulation, what is the specific role of the canine teeth?
Answer: They immediately disclude all posterior teeth during lateral excursion
In canine-protected articulation, the canines bear lateral forces and their steep guidance immediately separates all posterior teeth during any lateral excursion, protecting posterior restorations.
What is the envelope of function in occlusion?
Answer: The three-dimensional boundary of all mandibular movements during functional activities
The envelope of function is the three-dimensional space encompassing all mandibular movements during functional activities such as chewing and swallowing, which must be respected when designing occlusal schemes.
What is vertical dimension of occlusion (VDO)?
Answer: The measured distance between maxillary and mandibular reference points when teeth are in maximum intercuspation
The vertical dimension of occlusion is the measured distance between defined reference points on the face when the teeth are in maximum intercuspation, a critical measurement for proper prosthetic reconstruction.