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level: ARTICULATOR

Questions and Answers List

level questions: ARTICULATOR

QuestionAnswer
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 movementsARTICULATOR
uses of articulator is mounting of dental casts fordiagnostic purposes, treatment planning, generation of occlusal scheme
function of articulationto act as a patient in the absense of a patient
Can accept only interocclusal recordsSIMPLEST ARTICULATOR
Can accept all types of recordsSOPHISTICATED ARTICULATOR
In the absence of natural teeth, the _____ dictates the downward movement of the mandiblearticular eminence
In natural teeth, the _____ dictates the downward movement of the mandibleanteriors
NON-ADJUSTABLE ARTICULATOR is also calledGrittman Articulator
Can open and close in a fixed horizontal axisNON-ADJUSTABLE ARTICULATOR
Have a fixed condylar pathNON-ADJUSTABLE ARTICULATOR
NON-ADJUSTABLE ARTICULATOR can accept on of the following recordsface bow record, centric jaw relation record, protrusive record
NON-ADJUSTABLE ARTICULATORis mostly used to recordcentric jaw relation record
MEAN VALUE ARTICULATOR (fixed values):Intercondylar distance100 - 110 mm
MEAN VALUE ARTICULATOR (fixed values):Condylar guidance33 degrees
MEAN VALUE ARTICULATOR (fixed values):Incisal guidance9-12 degrees
Have adjustable horizontal condylar paths, adjustable lateral condylar path adjustable incisal guide tableSEMI ADJUSTABLE ARTICULATOR
SEMI ADJUSTABLE ARTICULATOR typesarcon type, non arcon type
Capable of being adjusted to follow the mandibular movement in all directionFULLY ADJUSTABLE ARTICULATOR
FULLY ADJUSTABLE ARTICULATOR: They don't have a condylar guidance instead they have _____receptacles
articulator: need to remountSEMI ADJUSTABLE ARTICULATOR
articulator: no need to remountFULLY ADJUSTABLE ARTICULATOR
Represents condyleCONDYLAR ELEMENT
Arcon term was derived by ____from the words ARticulator and CONdyleBregstrom
Condylar element attached to the lower member and condylar guidance is attached to the upper member, resembling the human anatomy correctlyARCON ARTICULATOR
Angulation of the mechanical fossae is fixed relative to the occlusal plane of maxillary castARCON ARTICULATOR
Condylar elements attached to the upper member and condylar guidance to the lower memberNON-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 articulatorNON-ARCON TYPE ARTICULATOR
Represents slopes of articular eminenceCONDYLAR GUIDANCE
If condylar guidance is sloped antero-posteriorly —horizontal guidance
Represents vertical dimension of occlusionINSICAL GUIDE PIN
Vertical rod that separates the upper and lower triangular components in the anterior endINSICAL GUIDE PIN
Helps to keep a fixed distance between the upper and lower members at the anterior endINSICAL 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 teethHORIZONTAL GUIDANCE
represents the lingual slopes of maxillary canine/lingual slopes of buccal cusps ofmaxillary posterior teethLATERAL GUIDANCE
represents maxillaUpper member
represents mandibleLower member
where casts are connectedMounting plates