Ministry of Public Health of Ukraine Higher State Educational Establishment of Ukraine

"Ukrainian Medical Stomatological Academy"

"Approved"

at the meeting of the department

propedeutics of Prosthodontics

Head of the department

Associate Professor, Korol D.M. _________

"_____"_______________ 20___

RECOMMENDATIONS

FOR STUDENTS’ independent WORK

during the preparation to practical classes

Academic discipline	Propedeutics of Orthopaedic stomatology
Module 1	Propedeutics of Orthopaedic stomatology
Intensional module 3	Basic technologies of dentures fabrication
Theme of the lesson	Technology of all plastic removable partial denture: substituting of beeswax on a plastic. Finishing and polishing.
Academic year	II
Faculty	Stomatology

Poltava 2011

1. Actuality of the theme:

After checking of the prosthesis design in the clinic by a physician next the dental technician who makes the final modeling of wax prints and conducts plastering to the flask to replace the wax on the plastic.

At present, the industry produces a variety of chemical composition and properties of dental plastics, waxes. Each of them has its positive and negative qualities that allow to apply it in certain cases. Therefore, having a wide range of plastics, it is necessary to know their composition and properties to select those that best meet the stated objectives of orthopedic treatment.

2. Specific objectives:

- To determine the sequence of stages of models plastering by direct, inverse and combined method;

- To demonstrate on phantoms the technique of models plastering by direct method;

- To demonstrate on phantoms the technique of models plastering by inverse method;

- To demonstrate on phantoms the technique of models plastering by combined method;

- Determine the degree of maturation of the plastic dough;

- To characterize the composition and properties of materials for processing, grinding and polishing of removable partial laminar denture;

- To demonstrate on phantoms the technique of grinding and polishing of removable partial laminar denture;

3. Basic level training.

Names of previous disciplines	Acquired skills
1 Physics	Determine the physical and mechanical properties of materials used for grinding and polishing of removable partial laminar denture
2.Chemistry.	Determine the composition and properties of dental plastics.

4. Tasks for independent work during preparation to practical classes.

4.1.Theoretical questions to the lesson:

1. Methods of flasking prosthesis into the flask.

2. Indications for use of different flasking methods.

3. Flasking by the direct method.

4. Flasking by the reverse method.

5. Flasking by the combined method.

6. Stage of swelling of plastic dough.

7. Polymerization of prosthesis.

8. Possible errors during the polymerization of plastics and methods of their removal.

9. Excavation of the prosthesis from the flask and treatment.

10. Grinding of prosthesis.

11. Polishing of prosthesis.