Procedures of Recording Maxillo-Mandibular Relations Checking extension, retention, and stability of occlusion rim Establishing proper facial contour Orientation of the occlusal plane Determination of vertical dimensions Mounting maxillary cast according to face-bow Registration of centric occluding relations Registration of eccentric jaw relations

1. Recording jaw relations
Ahmed A. Abdulwahab
UG: 1330095

2. Maxillo-Mandibular Relations
1. Checking extension, retention, and stability of occlusion rim
2. Establishing proper facial contour
3. Orientation of the occlusal plane
4. Determination of vertical dimensions
5. Mounting maxillary cast according to face-bow
6. Registration of centric occluding relations
7. Registration of eccentric jaw relations

3. extension
Extend to functional depth
Rounded and smooth
Fill the vestibule
Post dam area
Lingual extension

4. retention
Maxilla
Upward and forward ………....Post-dam
Downward……border seal anteriorly
Buccal……..Border seal posteriorly
Mandible
Downward and forward ………....Posterior portion
Upward ……border seal anteriorly
Buccal……..Border seal posteriorly

5. Checking extension, retention, and stability
Alternate vertical pressure on premolar region
The base shouldn’t teeter

8. Anterior occlusal plane influenced by:
* Esthetics
* Phonetics
Posterior occlusal plane influenced by:
* Anatomical land marks
* Condition of residual ridge

9. Two measurable lengths of the face are important guides in
making maxillo -mandibular relation records and are referred to as
Vertical dimension of rest (VDR).
Vertical dimension of occlusion (VDO).

10. bow record :-
Face-bow is a dental instrument that is used in the
prosthodontics . it transfers the relationship of maxillary arch
and temporomandibular joint to the casts. It aids in mounting
maxillary cast on the articulator.

11. -Centric relation: It is the most retruded
physiologic relation of the mandible to maxilla
, to and from which the individual can make
lateral movements
Centric occlusion: It is the relation between the
relation
opposing teeth when the mandible is in centric
CR is recorded after determination of VDO

12. Recording the centric relation
Technique for interocclusal record using
softened wax
(Check bite or waxwafet method )