Week 5 - The Ear Bow Transfer

Question 1

Significance of the Ear Bow Transfer

Answer 1

Relates the maxillary cast to the Terminal hinge axis (condyles)
Orients the maxillary cast correctly in space
Permits mounting of the maxillary cast on a semi-adjustable articulator

Question 2

With an Ear Bow Transfer, how is a mandibular cast mounted?

Answer 2

By using a centric relation record

Question 3

Centric Relation

Answer 3

The maxillomandibular relationship in which the condyles articulate with the thinnest avascular portion of their respective discs with the complex in the anterior-superior portion against the shapes of the articular eminences

Question 4

What are the methods to record CR?

Answer 4

Bilateral manipulation
Chin point guidance
Anterior deprogrammer

Question 5

Centric Relation Record

Answer 5

Along the arc of rotation of the mandible
No teeth touching
Thin
Soft
Fast setting
Dimensionally stable
Easily verifyable

Question 6

Use of diagnostic casts

Answer 6

Used for diagnosis and tratmenting planning as well as construction of diagnostic wax-ups
Also used to fabricate custom trays and provisional restorations