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Occlusion options for Prosthetic Rehabilitation

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Dr LAYLA A. ABU-NABA'A

on 3 April 2013

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Transcript of Occlusion options for Prosthetic Rehabilitation

Layla Abu-Naba'a; BDS, PhD, MFDRCS.
JORDAN UNIVERSITY OF SCIENCE AND TECHNOLOGY 2013 Occlusion options for Prosthetic Rehabilitation LINGUALIZED OCCLUSION POSTERIOR TEETH SETTING BALANCED OCCLUSION- ANATOMICAL AND
SEMI ANATOMICAL CUSPS MONOPLANE
SETTING CROSS BITES
UNILATERAL
BILATERAL CLASS III CLASS II THANK YOU 1. Acceptable vertical facial height after treatment
2. Acceptable interocclusal distance with the mandible at rest
3. Stable jaw relationship with bilateral contact after relaxed closure leading into maximal intercuspation as well as after retruded closure
4. Multi-directional freedom of contact movements radiating from maximal inter-cuspation
5. Well-distributed contacts in maximal intercuspation, providing axially directed forces
6. No disturbing or harmful intermaxillary contacts during lateral or protrusive excursions
7. Maintain the health of remaining teeth and surrounding soft tissue during function
8. Cause no Tempro-mandibular Dysfunction GUIDELINES FOR THERAPEUTIC OCCLUSION STEPS FOR RPD OCCLUSION DEVELOPMENT Decide Vertical Dimension at occlusion VDO Decide Horizontal Relation Record occlusion at corrected VDO and HR Decide occlusal scheme

select tooth number, material and morphology Direct apposition of cast.

b) Interocclusal records with posterior teeth remaining on record

base.
c) Jaw relations records made entirely on occlusion rims.
d) Occlusal relations using occlusion rims on record base.
e) Establishing occlusion by the recording of occlusal path way

decide tooth and soft tissue alterations to remove interferences and correct VDO and HR
decide restorations to improve results, include canine to canine FPD
Revise normal occlusion OBJECTIVES 1. Simultaneously bilateral contacts of opposing posterior teeth must occur in centric occlusion

2. Occlusion for tooth supporetd removable partial denture may be arranged similar to the occlusion in seen in a harmonous natural dentition

- Stability of such removable partial dentures results from the effect of the direct retainers at both ends of the dentures base

3. Bilateral balanced occlusion in eccentric position should be formulated when a maxillary complete denture oppose the removable partial denture. This is a complete primarily to promote the stability of the complete denture.

4. Working side contact should be obtained for the mandibular distal extension
denture. This contacts should occur simultaneously with working side
contacts of the natural teeth to distribute the stress over the greatest
possible area


5. Simultaneously working and balancing contact should be formulated for the maxillary bilateral distal extension removable partial denture whenever possibe.

6. Only working contacts need to be formulated for either maxillary or mandibular unilateral distal extension removable partial dentures.

7. In the Kennedy Class IV removable partial denture configuration contact of
opposing anterior teeth in the planned intercuspal position is desired to
prevent a continous eruption of the opposing natural incisors unless they
are otherwise prevented from extrusion by means of a lingual plate,
auxillary bar, by splinting

8. Balanced contact of opposing posterior teeth in a straight forward protusive
relationship and functional excursive position is desired only when an opposing
complete denture or bilateral distal extension maxillary removable partial
denture is placed.


9. Artificial posterior teeth should not be arranged further distally than the
beginning of a sharp upward incline of the mandibular residual ridge or over
the retromolar pad.

The number and duration of teeth loss determines the amount of shift from normal occlusion to denture occlusion acceptable needs adjustment: occlusion is lost or distorted edentulous one arch reshift immediately
shift using repositioning treatment RPDs , and Shortened arch concepts,
Full transcript