This document provides information about inlay wax, including its classification, composition, types, manipulation, and uses in dentistry. It discusses how inlay wax is classified based on its use for patterns, impressions, or processing. It also describes the main components of inlay wax, such as paraffin wax, gum dammar, and carnauba wax, and their properties. The document outlines techniques for direct and indirect wax patterns and factors that can cause wax distortion. It concludes by describing the different types of inlay wax and their appropriate uses in direct or indirect dental techniques.

1. INLAY WAX
ABHIRAM A B
IIIRD YEAR

2. CONTENTS
• Introduction
• Classification
• Composition
• Types
• Manipulation
• Reference

3. INTRODUCTION
• Many procedures in dentistry require the use of waxes
• Waxes are used for some of the highest precision work in Dentistry
like patterns for metal castings
• There also used for boxing Impressions and blocking Undercuts.
• Waxes continue to remain important and irreplaceable material in
the dentistry because of its low cost and it’s combination of
special properties

4. Classification
Clinical
• Bite registration
• Disclosing
• Type I inlay wax
Laboratory
• Baseplate wax
• Beading
• Boxing
• Sticky
• Utility
Based on their uses

5. Classification
Pattern wax
• Casting wax
• Baseplate wax
• Inlay wax
Impression wax
• Corrective wax
• Biteplate wax
Processing wax
• Boxing wax
• Beading wax
• Sticky wax
Based on their application

6. • Used to form the curved patterns of the
restoration with material such as acrylic,
metal, Or ceramic
Pattern waxes
• Auxiliary dental waxes which aid in
constructing the restoration either in the
clinic or in laboratory
Processing
waxes
• Primarily used to make impressions of
edentulous regions in the mouth
Impression
waxes

7. Composition
• The dental waxes may be composed of natural waxes and
synthetic waxes, gums, fats, fatty acids, oils.
• Natural waxes are derived from mineral, vegetable, and
animal origins.
• Synthetic waxes are chemically synthesized from natural
wax molecules and are typically composed of hydrogen,
carbon, oxygen, and chlorine.
• Coloring agents are added for contrast of wax patterns
against tooth, die, and model surfaces.
• Some formulations contain a compatible filler to control
expansion and shrinkage of the wax product.
• Paraffin wax =
40 to 60 %
• Gum dammar
• Carnauba wax
• Colouring agent

8. PARAFFIN WAX:
• Derived from high boiling fraction of petroleum.
• Depending upon Molecular Wt. & Distribution can be obtained in a
wide melting or softening range.
• Paraffin used for Type I waxes have higher melting point than the Paraffin
used for Type II waxes.
DISADVANTAGES
# Flake when it is trimmed. Does not present Smooth, Glossy surface.

9. GUM DAMMAR or DAMMAR RESIN
• Natural Resin.
• Added to improve the smoothness in moulding.
• Resistant to Cracking & Flaking.
• Increases the Toughness of the wax.
• Enhances the Smoothness of the surface.

10. CARNAUBA WAX:
• Occurs as fine powder. Quite Hard in nature.
• High Melting point. Combined with paraffin to Decrease the flow at mouth
temperature.
• Give more Glossiness to wax surface than dammar resin.

11. CANDELILLA WAX
• can also be added to replace the Carnauba wax.
• Its Melting point is lower. Not as hard as Carnauba wax.
• Modify of wax.

12. PROPERTIES OF INLAY WAX
• When softened wax should be uniform.
• Color should contrast with the die material.
• No Flakiness or similar surface roughness when wax is bent &
molded after softening.
• Should Vaporize completely during burnout (500°c).
• Wax should not pull or chip during carving.
• Wax pattern should be completely rigid & dimensionally stable.
• FLOW
• THERMAL PROPERTIES
• WAX DISTORTION
• MANIPULATION OF INLAY WAX
• . OTHER DENTAL WAXES

13. FLOW
• Requirements according to ADA Specification no. 4.
• At 45°C – Both Type I & II should have a flow b/w70 to 90%.
• At 37°C-Type I should not flow more than 16.

14. THERMAL PROPERTIES –
THERMAL CONDUCTIVITY
• Low.
• Takes time to heat the wax uniformly.
• COEFFICIENT OF THERMAL EXPANSION: High.
• Thermal changes are higher than any other materials.
• Linear expansion of 0.6 % when heated from 25 to 37°C is permitted for Type I
waxes.
• This property is more significant in Direct Tech. Other Factors that influence the
Coefficient of Thermal Expansion are-
• Temperature of the Die.
• Method used for applying pressure to the wax.

15. WAX DISTORTION
• Most serous problem in Inlay wax. It is due to Release of Stresses in
pattern due to.. Contraction on cooling. Occluded gas bubbles.
• Change of shape of wax duringmoulding. From Manipulation, Carving,
Pooling Removal.

16. CAUSES OF DISTORTION:
• If wax is not at uniform temp. When inserted in the cavity.
• If wax is not help under uniform pressure during cooling.
• If wax is added in an area of deficiency.

17. TO AVOID DISTORTION OF WAXES:
• Minimal carving & change in temperature.
• Minimal Storage of pattern. Use warm instrument for carving.
• Store it in a Fridge if necessary.

18. MANIPULATION OF INLAY WAX
TECHNIQUES –
• DIRECT TECHNIQUE INDIRECT TECHNIQUE
• DIRECT TECHNIQUE::
• Softened the stick of wax over the flame. Inserted into the cavity & held
under finger pressure.
• Allow to cool gradually at mouth temperature.
• Withdraw the wax pattern carefully.
• .INDIRECT TECHNIQUE::
• Pattern is prepared over a lubricated
• die.
• If molten wax used, very little stresses
• occur.

19. METHODS OF INDIRECT TECHNIQUE-
• Dipping Method - • In full crowns. *Die is dipped in hot liquid
wax.
•
• Softening In Warm recommended.
•
• Water- Not
•
• Adding in Layer Using spatula or brush.

20. TYPES OF IINLAY WAX
• Inlay waxes are used to prepare patterns –Type is a medium wax
employed in
• direct techniques and type Il is a soft wax
• used in the indirect techniques.
• Inlay wax must exhibit excellent
• adaptability to model or die surfaces, and
• it must be free from distortion, flaking, or
• chipping during the preparation of patterns.
• 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.
• For direct wax techniques type inlay wax must soften at a temperature that

21. Reference