Steps for Crown & Bridge Model Preparation - Randwick...
Transcript of Steps for Crown & Bridge Model Preparation - Randwick...
![Page 1: Steps for Crown & Bridge Model Preparation - Randwick …randwick.sydneyinstitute.wikispaces.net/file/view/Steps… · · 2009-07-03Crown & Bridge Model Preparation Stage 3. ...](https://reader031.fdocuments.us/reader031/viewer/2022030504/5ab1aaba7f8b9a284c8cd176/html5/thumbnails/1.jpg)
Construct Crown & Bridge Structures 510B Ver1
1
Steps for
Crown & Bridge
Model Preparation
Stage 3Construct Crown & Bridge Structures 510B Ver1
Practical Handout
![Page 2: Steps for Crown & Bridge Model Preparation - Randwick …randwick.sydneyinstitute.wikispaces.net/file/view/Steps… · · 2009-07-03Crown & Bridge Model Preparation Stage 3. ...](https://reader031.fdocuments.us/reader031/viewer/2022030504/5ab1aaba7f8b9a284c8cd176/html5/thumbnails/2.jpg)
2Equipment Required
Model Release Key Crown & Bridge Saw
Scalpel with sharp blade
Micro Motor
X-Cut TungstenBur
Red pencil &Die Hardener
Planeline articulator
![Page 3: Steps for Crown & Bridge Model Preparation - Randwick …randwick.sydneyinstitute.wikispaces.net/file/view/Steps… · · 2009-07-03Crown & Bridge Model Preparation Stage 3. ...](https://reader031.fdocuments.us/reader031/viewer/2022030504/5ab1aaba7f8b9a284c8cd176/html5/thumbnails/3.jpg)
3Models
All Crown & Bridge Models have been through strict Infection Control procedures.
![Page 4: Steps for Crown & Bridge Model Preparation - Randwick …randwick.sydneyinstitute.wikispaces.net/file/view/Steps… · · 2009-07-03Crown & Bridge Model Preparation Stage 3. ...](https://reader031.fdocuments.us/reader031/viewer/2022030504/5ab1aaba7f8b9a284c8cd176/html5/thumbnails/4.jpg)
4Step 1
Articulate your models using a planeline articulator.
Your teacher will join your models together.
![Page 5: Steps for Crown & Bridge Model Preparation - Randwick …randwick.sydneyinstitute.wikispaces.net/file/view/Steps… · · 2009-07-03Crown & Bridge Model Preparation Stage 3. ...](https://reader031.fdocuments.us/reader031/viewer/2022030504/5ab1aaba7f8b9a284c8cd176/html5/thumbnails/5.jpg)
IMPORTANT NOTEMake sure that the die stone models remain
dry when articulating.
DO NOT WET THE MODELS
Models can not be sectioned while wet using Resi-Rock die stone material.
5
![Page 6: Steps for Crown & Bridge Model Preparation - Randwick …randwick.sydneyinstitute.wikispaces.net/file/view/Steps… · · 2009-07-03Crown & Bridge Model Preparation Stage 3. ...](https://reader031.fdocuments.us/reader031/viewer/2022030504/5ab1aaba7f8b9a284c8cd176/html5/thumbnails/6.jpg)
6Step 2
Work on one model at a time.Gently place Model Release Key into the location
holes in the white plastic base plate.
![Page 7: Steps for Crown & Bridge Model Preparation - Randwick …randwick.sydneyinstitute.wikispaces.net/file/view/Steps… · · 2009-07-03Crown & Bridge Model Preparation Stage 3. ...](https://reader031.fdocuments.us/reader031/viewer/2022030504/5ab1aaba7f8b9a284c8cd176/html5/thumbnails/7.jpg)
7Step 3
Gently turn the Model Release Key to remove the die stone dental arch from the white plastic base plate.
![Page 8: Steps for Crown & Bridge Model Preparation - Randwick …randwick.sydneyinstitute.wikispaces.net/file/view/Steps… · · 2009-07-03Crown & Bridge Model Preparation Stage 3. ...](https://reader031.fdocuments.us/reader031/viewer/2022030504/5ab1aaba7f8b9a284c8cd176/html5/thumbnails/8.jpg)
8Step 4
A) Remove white plastic cap if needed.
B) Using a X-cut Tungsten trim excess die stone on dental arch and smooth any
rough areas.
![Page 9: Steps for Crown & Bridge Model Preparation - Randwick …randwick.sydneyinstitute.wikispaces.net/file/view/Steps… · · 2009-07-03Crown & Bridge Model Preparation Stage 3. ...](https://reader031.fdocuments.us/reader031/viewer/2022030504/5ab1aaba7f8b9a284c8cd176/html5/thumbnails/9.jpg)
9Step 5
Draw guide lines using a 2B pencil on model ready for sawing.
![Page 10: Steps for Crown & Bridge Model Preparation - Randwick …randwick.sydneyinstitute.wikispaces.net/file/view/Steps… · · 2009-07-03Crown & Bridge Model Preparation Stage 3. ...](https://reader031.fdocuments.us/reader031/viewer/2022030504/5ab1aaba7f8b9a284c8cd176/html5/thumbnails/10.jpg)
10Step 6
Carefully saw model following scribed line while avoiding the margin and prepared tooth.
Sectioning of the model
![Page 11: Steps for Crown & Bridge Model Preparation - Randwick …randwick.sydneyinstitute.wikispaces.net/file/view/Steps… · · 2009-07-03Crown & Bridge Model Preparation Stage 3. ...](https://reader031.fdocuments.us/reader031/viewer/2022030504/5ab1aaba7f8b9a284c8cd176/html5/thumbnails/11.jpg)
11Step 7
Remove die stone dust and clean model.
![Page 12: Steps for Crown & Bridge Model Preparation - Randwick …randwick.sydneyinstitute.wikispaces.net/file/view/Steps… · · 2009-07-03Crown & Bridge Model Preparation Stage 3. ...](https://reader031.fdocuments.us/reader031/viewer/2022030504/5ab1aaba7f8b9a284c8cd176/html5/thumbnails/12.jpg)
12Step 8
Trim the bulk around the margin of tooth using a X-cut tungsten. Close to the margin finish trimming with a scalpel.
Trimming the Die
![Page 13: Steps for Crown & Bridge Model Preparation - Randwick …randwick.sydneyinstitute.wikispaces.net/file/view/Steps… · · 2009-07-03Crown & Bridge Model Preparation Stage 3. ...](https://reader031.fdocuments.us/reader031/viewer/2022030504/5ab1aaba7f8b9a284c8cd176/html5/thumbnails/13.jpg)
13Step 9 & 10
Mark margin of die with red pencil.
Paint die and abutment teeth with die hardener.
![Page 14: Steps for Crown & Bridge Model Preparation - Randwick …randwick.sydneyinstitute.wikispaces.net/file/view/Steps… · · 2009-07-03Crown & Bridge Model Preparation Stage 3. ...](https://reader031.fdocuments.us/reader031/viewer/2022030504/5ab1aaba7f8b9a284c8cd176/html5/thumbnails/14.jpg)
14Step 11
Clean dust & dirt from die stone pieces. Clean white base plate and metal pins with warm soapy water.
Re-assemble model ensuring there is no gapsbetween the die stone & white base plate.
![Page 15: Steps for Crown & Bridge Model Preparation - Randwick …randwick.sydneyinstitute.wikispaces.net/file/view/Steps… · · 2009-07-03Crown & Bridge Model Preparation Stage 3. ...](https://reader031.fdocuments.us/reader031/viewer/2022030504/5ab1aaba7f8b9a284c8cd176/html5/thumbnails/15.jpg)
15Model Preparation Complete
Place assembled Crown & Bridge models back onto the articulator ready to start work.