Prosthodontics3rd Year
OCCLUSAL RELATIONSHIPS FOR REMOVABLE PARTIAL
DENTURE
Dr. Loreidys Castañeda
OCCLUSION
FUNCTIONAL HARMONIOUS
CAUSES OF FAILURE TO PROVIDE AND MAINTAIN ADEQUATE OCCLUSION ON
THE REMOVABLE PARTIAL DENTURE
1. Lack of support for the denture base.
2. Establishing occlusion in a single static jaw relation record.
3. Unacceptable occlusal plane.
• The influence of the remaining natural teeth is usually such that the occlusal forms of the artificial teeth must be made to conform to an already established occlusal pattern.
SATISFACTORY OCCLUSION
ANALYSIS OF THE OCCLUSION
CORRECTION OF OCCLUSAL DISHARMONY
RECORDING OF CENTRIC RELATION
OR OCCLUSION
RECORDING OF ECCENTRIC JAW
RELATIONS
CORRECTION OF OCCLUSAL DISCREPANCIES
DESIRABLE OCCLUSAL CONTACT RELATIONSHIPS FOR REMOVABLE PARTIAL DENTURES
Simultaneous bilateral contacts of opposing posterior teeth CENTRIC OCCLUSION
Tooth-supported removable partial dentures
OCCLUSION IN HARMONIOUS NATURAL
DENTITION.
Bilateral balanced occlusion in eccentric positions
MAXILLARY COMPLETE DENTURE OPPOSES THE
REMOVABLE PARTIAL DENTURE.
MAXILLARY BILATERAL DISTAL EXTENSION
REMOVABLE PARTIAL DENTURE
Working side contacts MANDIBULAR DISTAL EXTENSION DENTURE.
Simultaneous working and balancing contacts
Only working contacts
UNILATERAL DISTAL EXTENSION
REMOVABLE PARTIAL DENTURE
Contact of opposing anterior teeth in intercuspal position
and in eccentric positionsKENNEDY CLASS IV
Balanced contact of opposing posterior teeth in protrusive relationship and functional
excursive positions
OPPOSING COMPLETE DENTURE OR
BILATERAL DISTAL EXTENSION MAXILLARY REMOVABLE PARTIAL
DENTURE
NOT ARRANGED DISTALLY OF THE BEGINNING OF A SHARP UPWARD INCLINE
OF THE MANDIBULAR RESIDUAL RIDGE OR OVER THE RETROMOLAR PAD.
Artificial posterior teeth
Artificial teeth RESIDUAL RIDGES
RECORDS OF OCCLUSAL RELATIONSHIPS FOR PARTIALLY EDENTULOUS PATIENTS
• Direct apposition of casts.• Interocclusal records with posterior teeth
remaining.• Occlusal relations using occlusion rims on
record bases.• Jaw relation records made entirely on
occlusion rims.
DIRECT APPOSITION OF CASTS
JAW RELATIONS FOR MANDIBULAR REMOVABLE PARTIAL DENTURE OPPOSING MAXILLARY COMPLETE DENTURE
OCCLUSION
FAVORABLE TOOTH-TO-RIDGE RELATIONSHIP
OPTIMUM OCCLUSAL PLANE
CUSPAL HARMONY BETWEEN ALL OCCLUDING TEETH
TRY-IN
REMOUNTED
CORRECTION OF OCCLUSAL DISCREPANCIES
CURING PROCESS
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