Indirect Provisional

crown preps b/w peprearing a tooth for a grown and cementing the crown

1. sedate/protect pulp
2. Prevent Tooth Movement: proxmial/eruption
3. Provide occlusal fxn
4. Easily cleaned
5. Protect free gingiva-non impinging margins
6. strength and retention
7. Esthetics
8. adjust occlusion in some cases

-Prefabricated
-stock aluminum cylinders
-anatomic metal crowns: soft moldable metal/reline
-polycarbonate crown forms(tooth colored)
-custom: direct/indirect techniques

-Direct Acrylic Resin(self curing)
-fabricated on preped tooth
-potentially faster
-technique sensitive(can lock on tooth)
-expreience shrinkage-less accurate
-potential pulpal irritation

-Direct Bis-Acryl(Integrity)
-Direct Materials
-IRM, Glass ionomer, Resins

-Indirect Acrylic Resin(self curing)
-Fabricated on fast-set plaster cast
-May seem slower
-More accurate fit
-protects pulp
-strength
-delegated axuiliary personel
-ucla technique

Direct: faster, less accurate, irritates pulp

Indirect: slower, more accurate, protects pulp

1. Fabricate acrylic splint on:
-overimpression of unprepared tooth
-Diagnostic cast with defets waxed in cast duplicated
-alternate-alginate impression store in damp aper towl

2. prepare tooth for crown
3. impression of prep with alginate
4. Pour impression with FAST SET plaster
5. Trim cast/adapt stent to cast
6. Paint rubber sep on cast(alcote/tin)
7. Mix self-curing acrylic and place in stent
8. place cast in stent with acrylic and allow to set
9. Remove stent, insepct cast and fill in voids as indicated
10. remove excess acrylic and pry provisonal crown from cast
11. trim falsh with acrylic bur
12. try provisional on prepared tooth and adjust interproximal and occlusal contacts
13. Polish provisional
14. cement temporary cement and rmeove excess after it has set

acrylic bur

dark pink, light pink, yellow

add acrylic to close contact

adjust with 7404, eliminate high spots

Temp-bond