Sequences of operations
Class II.
1. Phase in dental office
2. Taking impression – alginate
Both jaws.
1. Phase in dental lab
Pouring of the models – stone
Or
Making of wax template or making of custom trey
2.nd phase in dental surgery
Customized impression - alginate or elastomeric
Or
Registration of intemaxillary relationship – occlusion, choice of colour.
3.rh phase in dental lab
• Preparation of the model for backup.
All undercuts are blocked out with wax
Also the space
under the future framework is covered with wax
Tha wax framework is made of special wax , the sprue pins go to the canal in the base of the
model.
• Investment with the same investing material –a special flask.
The wax is burnt out and
the form is heated
in a special oven.
After that the casting process
is performed using a special
casting machine.
3rd phase in dental office
Try the metal framework
4th phase in dental surgery
The denture is built up – base is of wax and acrylic teeth are placed into the correct position.
5th phase in dental office – the denture is tried
6th phase in dental lab
The prothesis with the wax bases is put into a special flask – four parts of the flask.
Gypsum is used.
After hardening of the gypsum, the flask is open, the wax is removed using hot water, the
gypsum is insulated and the wax is repalced with acrylic material. The flask is closed again
and pressed in a special machine. After that polymeriazion of resin take place in hot water.
The denture is finished and polished.
7th phase in dental office:
Prothesis is given to the patient