Mouth prep and Master cast

Question 1

Phase \_\_\_\_
\:–Relief of pain & infection
–Collection of diagnostic data
   •Diagnostic cast, Diagnostic mounting
–Develop treatment plan
   •Design RPD
–Patient education & motivation
–Occlusal equilibration

Answer 1

Phase 1

Question 2

Phase___:
–Removal of deep caries, temporary restorations
–Extraction of non-retainable teeth
–Preprosthetic surgery: tuberosity reduction, etc.
–Periodontal treatment, Plaque control
–Interim prosthesis: function, esthetics
–Occlusal equilibration, may need changes after extractions

Answer 2

•Phase II

Question 3

Phase \_\_\_\_:
–Definitive endodontic treatment
–Definitive restorative treatment
•Surveyed crowns, if needed
•Fixed partial dentures, if appropriate
–Occlusal plane correction

Answer 3

•Phase III

Question 4

Phase _____:

–Construction RPD

Answer 4

•Phase IV

Question 5

Should fixed or removable treatment be done first?

Answer 5

Fixed treatment

Question 6

Phase ____:
–Post-insertion care
–Periodic recall
–Continued plaque control

Answer 6

•Phase V

Question 7

The following are all involved in \_\_\_\_\_:
•Relief of pain & infection
•Caries removal
•Extractions, Preposthetic surgery
•Periodontal treatment, plaque control
•Occlusal equilibration
•Endodontics
•Definitive Restorative Treatment:
–Amalgams, composites
–FPDs, crowns, surveyed crowns
•Occlusal plane correction
•Enameloplasty for RPD

Answer 7

Mouth preparation

Question 8

• Preliminary design of RPD

* Identify tooth modification areas

Answer 8

Diagnostic casts

Question 9

•Perform tooth modifications
–according to RPD diagnostic cast design
–QA Worksheet

Answer 9

Mouth preparation

Question 10

1.Develop Guide Planes
–Proximal: adjacent to edentulous areas
–ML: stress-release clasps ML minor connector
–Lingual: reciprocal clasp
2.Enlarge embrasure for minor connectors
3.Lower Height of Contour
–Proximal 2/3 Circumferential retentive clasp
–Reciprocal clasp
–Lingual Guide Plate
4. Create undercuts if needed
5. Prepare rest seats•Occlusal•Lingual: chevron

Answer 10

Enamoplasty for RPD

Question 11

What are the 5 steps of enamoplasty for RPD in order?

Answer 11

Develop guide planes
Enlarge embrasure space for minor connectors
Lower height of contour
Create undercuts
Prepare rest seats

Question 12

What is always the last step of enamoplasty for RPD?

Answer 12

Prepare rest seats

Question 13

•Used when slightly insufficient retentive undercut
•Sloped buccal &/or lingual surface, procedure contraindicated
–Need to reconsider other areas for undercut or may need surveyed crown
•Indicated: slightly insufficient retentive undercut with vertical buccal & lingual surfaces
•Preparation with round-ended tapered diamond

Answer 13

Undercut Preparation

Question 14

•After adequate preparation for GP, Survey line alterations
•Same procedure as lab projects
•Check adequacy occlusal/embrasure rest seats:
–Patient close into beading wax
–Measure thickness of wax (Caliper)
•At least 1mm
–If unable to attain adequate depth within enamel
•Remove small amount of opposing tooth structure
–Be sure to remake impression of opposing arch

Answer 14

Prepare rest seats

Question 15

_____ impression technique
–Border-molded tray
–One-step impression

Answer 15

•Custom tray/elastomeric material

Question 16

_____ impression technique
–Two-step (Dual) impression
•Step one: Impression of teeth & residual ridge
•Step two: Impression of residual ridge areas using framework

Answer 16

•Corrected (Altered) Cast technique