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Classifications of Articulators in Dentistry

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Classifications of Articulators in Dentistry

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Questions and Answers

What is the average incisal guidance angle in Class II articulators?

20˚ - 25˚ from horizontal

10˚ - 15˚ from horizontal (correct)

25˚ - 30˚ from horizontal

5˚ - 10˚ from horizontal

By what is the maxillary cast related to the articulator condyle in Class II articulators?

Hanau's formula

Bolton's ratio

Bonwill's triangle (correct)

Face bow

What allows for hinge movement in articulators?

Protrusive and lateral movements

Fixed condylar path articulators

A single inter-occlusal record (correct)

Class I articulators

What is the name of the angle between Bonwill's triangle and the occlusal plane?

Bolkwill's angle (D) Signup and view all the answers

What type of articulator accepts eccentric inter-occlusal records?

Class III articulator (C) Signup and view all the answers

How is the lateral condylar guidance (L) adjusted in semi-adjustable articulators?

According to Hanau's formula (A) Signup and view all the answers

What is the primary difference between ARCON and Non-ARCON type articulators?

The location of the condyle attachment (D) Signup and view all the answers

What is the main characteristic of Class I articulators?

They accept single inter-occlusal records (D) Signup and view all the answers

What type of articulator is characterized by a hinge and a posterior screw to adjust the vertical stop level?

Plain line or simple hinge articulator (B) Signup and view all the answers

Which of the following articulators is classified as a 'Fixed condylar path articulator'?

Class II articulator (A) Signup and view all the answers

What is the primary purpose of a face bow transfer in articulators?

To record the centric relation (B) Signup and view all the answers

Which of the following articulators is classified as a 'Simple holding instrument'?

Plaster slab relator (B) Signup and view all the answers

What type of articulator allows for the adjustment of horizontal, right, and left condylar guidance based on patient records?

Class III adjustable condylar path articulator (A) Signup and view all the answers

Which of the following articulators does NOT allow for adjustment of the condylar path?

Class I hinge articulator (A) Signup and view all the answers

What is the purpose of the face bow in mounting dental casts to articulators?

To relate the maxilla to the condyles (C) Signup and view all the answers

What is the primary function of the incisal pin in the Bonwill’s triangle mounting technique?

To position the incisal edge of the upper cast (A) Signup and view all the answers

What is the purpose of trimming the maxillary cast during the mounting process?

To create space for mounting plaster (D) Signup and view all the answers

What is the alternative method of mounting the maxilla when using the Bonwill’s triangle technique?

Using the occlusal plane guide (A) Signup and view all the answers