Orientation Jaw relation- Records the hinge axis of a body- It is the relation of maxillary / mandibular bone to the cranial base- Not the relation between maxilla & mandible OK!- FACE BOW – used to record the hinge axis- 3 points of face bow – 2 ears. Nose tip / rootCentric Occlusion- Maximum intercuspation of opposing teeth- It is independent of condylar position- Maximum intercuspal positionCentric Relation- It is the maxilla-mandibular relation- Condylar head of the mandibular articulates with the thinnest avascular position of their respective disc- Terminal hinge position- Anterior & superior position ( condylar disc complex )- Against the slope of the articular eminenceInterocclusal Record Materials (bite registration materials)- Polyvinyl siloxane – fast-setting material- Alu wax - Polyether

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