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level: ARTICULATOR

Questions and Answers List

level questions: ARTICULATOR

Question	Answer
It is a mechanical device that represents the temporomandibular joint and jaw members to which maxillary and mandibular casts may be attached to simulate jaw movements	ARTICULATOR
uses of articulator is mounting of dental casts for	diagnostic purposes, treatment planning, generation of occlusal scheme
function of articulation	to act as a patient in the absense of a patient
Can accept only interocclusal records	SIMPLEST ARTICULATOR
Can accept all types of records	SOPHISTICATED ARTICULATOR
In the absence of natural teeth, the _____ dictates the downward movement of the mandible	articular eminence
In natural teeth, the _____ dictates the downward movement of the mandible	anteriors
NON-ADJUSTABLE ARTICULATOR is also called	Grittman Articulator
Can open and close in a fixed horizontal axis	NON-ADJUSTABLE ARTICULATOR
Have a fixed condylar path	NON-ADJUSTABLE ARTICULATOR
NON-ADJUSTABLE ARTICULATOR can accept on of the following records	face bow record, centric jaw relation record, protrusive record
NON-ADJUSTABLE ARTICULATORis mostly used to record	centric jaw relation record
MEAN VALUE ARTICULATOR (fixed values):Intercondylar distance	100 - 110 mm
MEAN VALUE ARTICULATOR (fixed values):Condylar guidance	33 degrees
MEAN VALUE ARTICULATOR (fixed values):Incisal guidance	9-12 degrees
Have adjustable horizontal condylar paths, adjustable lateral condylar path adjustable incisal guide table	SEMI ADJUSTABLE ARTICULATOR
SEMI ADJUSTABLE ARTICULATOR types	arcon type, non arcon type
Capable of being adjusted to follow the mandibular movement in all direction	FULLY ADJUSTABLE ARTICULATOR
FULLY ADJUSTABLE ARTICULATOR: They don't have a condylar guidance instead they have _____	receptacles
articulator: need to remount	SEMI ADJUSTABLE ARTICULATOR
articulator: no need to remount	FULLY ADJUSTABLE ARTICULATOR
Represents condyle	CONDYLAR ELEMENT
Arcon term was derived by ____from the words ARticulator and CONdyle	Bregstrom
Condylar element attached to the lower member and condylar guidance is attached to the upper member, resembling the human anatomy correctly	ARCON ARTICULATOR
Angulation of the mechanical fossae is fixed relative to the occlusal plane of maxillary cast	ARCON ARTICULATOR
Condylar elements attached to the upper member and condylar guidance to the lower member	NON-ARCON TYPE ARTICULATOR
When the articulator is opened, the angle of mechanical fossa changes, this leads to errors when protrusive record is used to program the articulator	NON-ARCON TYPE ARTICULATOR
Represents slopes of articular eminence	CONDYLAR GUIDANCE
If condylar guidance is sloped antero-posteriorly —	horizontal guidance
Represents vertical dimension of occlusion	INSICAL GUIDE PIN
Vertical rod that separates the upper and lower triangular components in the anterior end	INSICAL GUIDE PIN
Helps to keep a fixed distance between the upper and lower members at the anterior end	INSICAL GUIDE PIN
"INSICAL GUIDE PIN: Rests on the ____	of lower member (aka incisal guide table)"
Represents lingual surface of maxillary anterior teeth along which lower incisors move thus serving as an anterior guide.	INCISAL GUIDE TABLE
(anteroposterior) → represents the lingual slopes of the upper anterior teeth	HORIZONTAL GUIDANCE
represents the lingual slopes of maxillary canine/lingual slopes of buccal cusps ofmaxillary posterior teeth	LATERAL GUIDANCE
represents maxilla	Upper member
represents mandible	Lower member
where casts are connected	Mounting plates