Setting maxillary posterior anatomic denture teeth cd 2nd yr
Dental Materials DA122. Two parts ◦ Anatomic portion Created from the alginateimpression-the...
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Transcript of Dental Materials DA122. Two parts ◦ Anatomic portion Created from the alginateimpression-the...
![Page 1: Dental Materials DA122. Two parts ◦ Anatomic portion Created from the alginateimpression-the teeth ◦ Art portion Forms the base of the model.](https://reader035.fdocuments.in/reader035/viewer/2022072014/56649eac5503460f94bb370f/html5/thumbnails/1.jpg)
Pouring andTrimming Dental Models
Dental Materials DA122
![Page 2: Dental Materials DA122. Two parts ◦ Anatomic portion Created from the alginateimpression-the teeth ◦ Art portion Forms the base of the model.](https://reader035.fdocuments.in/reader035/viewer/2022072014/56649eac5503460f94bb370f/html5/thumbnails/2.jpg)
Two parts◦Anatomic portion Created from the alginateimpression-the teeth
◦Art portion Forms the base of the model
Two Parts
![Page 3: Dental Materials DA122. Two parts ◦ Anatomic portion Created from the alginateimpression-the teeth ◦ Art portion Forms the base of the model.](https://reader035.fdocuments.in/reader035/viewer/2022072014/56649eac5503460f94bb370f/html5/thumbnails/3.jpg)
Fig. 47-8 Anatomic and art portions of a dental model.
Copyright © 2009, 2006 by Saunders, an imprint of Elsevier Inc. All rights reserved.
![Page 4: Dental Materials DA122. Two parts ◦ Anatomic portion Created from the alginateimpression-the teeth ◦ Art portion Forms the base of the model.](https://reader035.fdocuments.in/reader035/viewer/2022072014/56649eac5503460f94bb370f/html5/thumbnails/4.jpg)
Double-pour method◦ The anatomic portion of the model is poured first;
then a second mix of plaster or stone is used to prepare the art portion.
Box-and-pour method◦ The impression is surrounded with a “box” made
of wax and poured as one unit. Inverted-pour method
◦ One large batch of plaster or stone is mixed and both portions of the model are poured in a single step.
Different Pouring Methods
Copyright © 2009, 2006 by Saunders, an imprint of Elsevier Inc. All rights reserved.
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Fig. 47-9 Examples of pouring methods.
Copyright © 2009, 2006 by Saunders, an imprint of Elsevier Inc. All rights reserved.
![Page 6: Dental Materials DA122. Two parts ◦ Anatomic portion Created from the alginateimpression-the teeth ◦ Art portion Forms the base of the model.](https://reader035.fdocuments.in/reader035/viewer/2022072014/56649eac5503460f94bb370f/html5/thumbnails/6.jpg)
Prepare the model◦ Soak it in water for 5 minutes.
Trimming the maxillary model ◦ Trim the base.◦ Trim the posterior area.◦ Trim the sides.◦ Trim the heel cuts.◦ Trim the angled portion from canine to canine
(comes to a point between 8 + 9)(Cont’d)
Trimming and Finishing of Dental Models
Copyright © 2009, 2006 by Saunders, an imprint of Elsevier Inc. All rights reserved.
![Page 7: Dental Materials DA122. Two parts ◦ Anatomic portion Created from the alginateimpression-the teeth ◦ Art portion Forms the base of the model.](https://reader035.fdocuments.in/reader035/viewer/2022072014/56649eac5503460f94bb370f/html5/thumbnails/7.jpg)
(Cont’d)
Trimming the mandibular model◦ Trim the posterior portion of the mandibular
model until it is even with the maxillary model.◦ Trim the base.◦ Trim the lateral cuts to match the maxillary lateral
cuts.◦ Trim the back and heel cuts.◦ Trim from canine to canine in a rounded form.(Cont’d)
Trimming and Finishing of Dental Models
Copyright © 2009, 2006 by Saunders, an imprint of Elsevier Inc. All rights reserved.
![Page 8: Dental Materials DA122. Two parts ◦ Anatomic portion Created from the alginateimpression-the teeth ◦ Art portion Forms the base of the model.](https://reader035.fdocuments.in/reader035/viewer/2022072014/56649eac5503460f94bb370f/html5/thumbnails/8.jpg)
(Cont’d)
Finishing the model ◦ Mix a slurry of gypsum and fill in any voids.
Polishing a plaster model ◦ Soak the model in a soapy solution for 24 hours.◦ Dry the model and then polish it with a soft cloth.
Trimming and Finishing of Dental Models
Copyright © 2009, 2006 by Saunders, an imprint of Elsevier Inc. All rights reserved.