Types Of Inlay Waxes Flashcards
The wide variety of dental waxes can be classified into two groups, what are those groups?
Clinic and Commercial dental laboratories
True or false.
Clinical products includes bite registration wax, disclosing wax, utility waxes for altering and adapting impression trace and low melting type inlay waxes used in the mouth for directing waxing processes for pattern production
True
Disclosing wax is also known as?
Pressure indicating paste
Laboratory products include boxing wax, base plate wax, sticky wax, beading wax, utility wax and hard medium and soft type II inlay type waxes for making patterns on patient models using the?
Indirect wax technique
Are required for the lost wax processing of cast prosthesis and frameworks
Type II waxes
True or false
Each of these waxes has a melting range over which the temperature must be adjusted by means of a burner flame to control the flow properties for each specific application
True
What are the classifications of dental waxes?
- Pattern wax
- Pocessing wax
- Impression wax
What are the examples of pattern wax?
- Inlay
- Casting
- Baseplate wax types
What are the examples of pattern wax?
Inlay wax
casting wax
baseplate wax
What are the examples of processing wax?
Boxing
Beading
Utility and Sticky wax
What are the examples of impression wax?
Bite registration and correction types
Is used for partial denture frameworks and other metal frameworks?
Casting wax
Used in fabricating dental restorations
Pattern waxes
Are used to prepare patterns these patterns are reproduced in gold via a casting process and in ceramic by hot isostatic pressing procedures
Inlay waxes
True or false
Inlay waxes must is exhibit excellent adaptability to model or die surfaces and it must be free from distortion flaking or chipping during the preparation of patterns.
True
This type of wax must also be able to disintegrate volatilize and be eliminated completely from an investment mold during the burnout or wax elimination procedure.
Inlay wax
True or false.
For direct wax techniques, type I inlay wax must soften at the temperature that is not hazardous to the pulp tissue and it must harden at the temperature above mouth temperature.
True
True or false.
The colors of inlay waxes should contrast with the hues of teeth and dies
True
True or false.
The colors of inlay waxes should contrast with the hues of teeth and dies
True
Dental waxes are supplied in a variety of colors, what are those colors?
- Blue
- Green
- Yellow
- Red
- Ivory
Why are the colors of inlay waxes are useful?
To provide a suitable contrast against a die that is an accurate replica of a prepared tooth.
What wax that is useful for aesthetic case presentations to patients?
Ivory-colored wax
True or false.
Inlay waxes may be softened over a flame or in water at 54°C to 60° C to enable their flow in the liquid state and their adaptation to the prepared tooth or die.
True
True or false.
A regular or soft type of wax is typically used for indirect work at room temperature or in cool weather a harder or medium type with a low flow property is indicated for use in warmer climates.
True
Used to fabricate wax pattern for crowns in lace and bridges.
Inlay wax
It contains different waxes such as paraffin ceresene carnoba and beeswax
Inlay wax
What is the first procedure in the casting of an inlay or crown for the lost wax process?
The preparation of a dental wax pattern
What is the difference when a wax pattern is made in the mouth versus a pattern that is made outside in the mouth? (Indirect and direct)?
A wax pattern made in the mouth (direct technique) will shrink appreciably as it is cold to room temperature.
A wax pattern made by the indirect method may not shrink as much.
Why does the direct technique is rarely used in producing wax inlay patterns?
It is because of the wax sensitivity to changes in pressure temperature and heating and cooling rates during manipulation because the direct technique will shrink as it is cooled to room temperature
Are used occasionally to facilitate the wax pattern preparation process this wax is kept molten to provide a station for mass production of patterns.
Dipping waxes
Is a medium wax employed in direct techniques
Type I
Is a soft wax used in the indirect techniques
Type II
True or false.
No matter how a pattern is prepared it should be an accurate reproduction of the missing tooth structure or part of a prosthesis that is adapted to soft tissues the wax pattern forms the outline of the mold into which an alloy is a cast or a ceramic is hot isostatically pressed.
True
True or false.
The pattern should be well adapted to the prepared cavity or replica cavity and properly carved without any significant distortion.
True
After the pattern is removed from the prepared cavity it is in case in a gypsum or phosphate based material or other type of refractory material known as INVESTMENT. This process is called?
Investing the pattern
True or false.
After investing anatomically accurate wax or resin patterns for inlays, onlays, crowns, bridges, and frameworks for removable partial dentures the invested material must be eliminated for completely before molten metal is cast or course ceramic is hot pressed into the mold cavity.
True
The hardest and are for math use in tropical climates.
Type III wax
A soft pliable waxes used primarily in taking and pouring of impressions. Supplied as long 40 cm strips that are 4 to 5 cm wide and 0.1 cm thickness.
Boxing wax
Use the around the periphery of an impression trait to reduce irritation of the tray on the soft tissues or to extend the tray before the impression is taken.
Utility wax
It is brittle at room temperature and sticky when heated it is used to assemble metallic or rest in pieces temporarily in position or to seal a plaster splint to a stone cast in the process of forming porcelain facings.
Sticky wax
It is used as a wax veneer over an original impression to register the detail of soft tissues and functional state.
Corrective impression wax
Used for accurate articulation of certain models of opposing arches.
Bite registration wax
